Cleanup, WIP, needs a NuttX checkout to Firmware/NuttX now

107 files changed, 0 insertions, 19612 deletions

diff --git a/apps/examples/Kconfig b/apps/examples/Kconfig
deleted file mode 100644
index ec0a97dd4..000000000
--- a/apps/examples/Kconfig
+++ /dev/null
@@ -1,62 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-source "$APPSDIR/examples/adc/Kconfig"
-source "$APPSDIR/examples/buttons/Kconfig"
-source "$APPSDIR/examples/can/Kconfig"
-source "$APPSDIR/examples/cdcacm/Kconfig"
-source "$APPSDIR/examples/composite/Kconfig"
-source "$APPSDIR/examples/cxxtest/Kconfig"
-source "$APPSDIR/examples/dhcpd/Kconfig"
-source "$APPSDIR/examples/elf/Kconfig"
-source "$APPSDIR/examples/ftpc/Kconfig"
-source "$APPSDIR/examples/ftpd/Kconfig"
-source "$APPSDIR/examples/hello/Kconfig"
-source "$APPSDIR/examples/helloxx/Kconfig"
-source "$APPSDIR/examples/json/Kconfig"
-source "$APPSDIR/examples/hidkbd/Kconfig"
-source "$APPSDIR/examples/keypadtest/Kconfig"
-source "$APPSDIR/examples/igmp/Kconfig"
-source "$APPSDIR/examples/lcdrw/Kconfig"
-source "$APPSDIR/examples/mm/Kconfig"
-source "$APPSDIR/examples/mount/Kconfig"
-source "$APPSDIR/examples/modbus/Kconfig"
-source "$APPSDIR/examples/nettest/Kconfig"
-source "$APPSDIR/examples/nsh/Kconfig"
-source "$APPSDIR/examples/null/Kconfig"
-source "$APPSDIR/examples/nx/Kconfig"
-source "$APPSDIR/examples/nxconsole/Kconfig"
-source "$APPSDIR/examples/nxffs/Kconfig"
-source "$APPSDIR/examples/nxflat/Kconfig"
-source "$APPSDIR/examples/nxhello/Kconfig"
-source "$APPSDIR/examples/nximage/Kconfig"
-source "$APPSDIR/examples/nxlines/Kconfig"
-source "$APPSDIR/examples/nxtext/Kconfig"
-source "$APPSDIR/examples/ostest/Kconfig"
-source "$APPSDIR/examples/pashello/Kconfig"
-source "$APPSDIR/examples/pipe/Kconfig"
-source "$APPSDIR/examples/poll/Kconfig"
-source "$APPSDIR/examples/pwm/Kconfig"
-source "$APPSDIR/examples/posix_spawn/Kconfig"
-source "$APPSDIR/examples/qencoder/Kconfig"
-source "$APPSDIR/examples/relays/Kconfig"
-source "$APPSDIR/examples/rgmp/Kconfig"
-source "$APPSDIR/examples/romfs/Kconfig"
-source "$APPSDIR/examples/sendmail/Kconfig"
-source "$APPSDIR/examples/serloop/Kconfig"
-source "$APPSDIR/examples/telnetd/Kconfig"
-source "$APPSDIR/examples/thttpd/Kconfig"
-source "$APPSDIR/examples/tiff/Kconfig"
-source "$APPSDIR/examples/touchscreen/Kconfig"
-source "$APPSDIR/examples/udp/Kconfig"
-source "$APPSDIR/examples/discover/Kconfig"
-source "$APPSDIR/examples/uip/Kconfig"
-source "$APPSDIR/examples/usbserial/Kconfig"
-source "$APPSDIR/examples/usbstorage/Kconfig"
-source "$APPSDIR/examples/usbterm/Kconfig"
-source "$APPSDIR/examples/watchdog/Kconfig"
-source "$APPSDIR/examples/wget/Kconfig"
-source "$APPSDIR/examples/wgetjson/Kconfig"
-source "$APPSDIR/examples/xmlrpc/Kconfig"
diff --git a/apps/examples/Make.defs b/apps/examples/Make.defs
deleted file mode 100644
index 68d4d4340..000000000
--- a/apps/examples/Make.defs
+++ /dev/null
@@ -1,263 +0,0 @@
-############################################################################
-# apps/examples/Make.defs
-# Adds selected applications to apps/ build
-#
-#   Copyright (C) 2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
-ifeq ($(CONFIG_EXAMPLES_ADC),y)
-CONFIGURED_APPS += examples/adc
-endif
-
-ifeq ($(CONFIG_EXAMPLES_BUTTONS),y)
-CONFIGURED_APPS += examples/buttons
-endif
-
-ifeq ($(CONFIG_EXAMPLES_CAN),y)
-CONFIGURED_APPS += examples/can
-endif
-
-ifeq ($(CONFIG_EXAMPLES_CDCACM),y)
-CONFIGURED_APPS += examples/cdcacm
-endif
-
-ifeq ($(CONFIG_EXAMPLES_COMPOSITE),y)
-CONFIGURED_APPS += examples/composite
-endif
-
-ifeq ($(CONFIG_EXAMPLES_CXXTEST),y)
-CONFIGURED_APPS += examples/cxxtest
-endif
-
-ifeq ($(CONFIG_EXAMPLES_DHCPD),y)
-CONFIGURED_APPS += examples/dhcpd
-endif
-
-ifeq ($(CONFIG_EXAMPLES_DISCOVER),y)
-CONFIGURED_APPS += examples/discover
-endif
-
-ifeq ($(CONFIG_EXAMPLES_ELF),y)
-CONFIGURED_APPS += examples/elf
-endif
-
-ifeq ($(CONFIG_EXAMPLES_FTPC),y)
-CONFIGURED_APPS += examples/ftpc
-endif
-
-ifeq ($(CONFIG_EXAMPLES_FTPD),y)
-CONFIGURED_APPS += examples/ftpd
-endif
-
-ifeq ($(CONFIG_EXAMPLES_HELLO),y)
-CONFIGURED_APPS += examples/hello
-endif
-
-ifeq ($(CONFIG_EXAMPLES_HELLOXX),y)
-CONFIGURED_APPS += examples/helloxx
-endif
-
-ifeq ($(CONFIG_EXAMPLES_HIDKBD),y)
-CONFIGURED_APPS += examples/hidkbd
-endif
-
-ifeq ($(CONFIG_EXAMPLES_IGMP),y)
-CONFIGURED_APPS += examples/igmp
-endif
-
-ifeq ($(CONFIG_EXAMPLES_JSON),y)
-CONFIGURED_APPS += examples/json
-endif
-
-ifeq ($(CONFIG_EXAMPLES_KEYPADTEST),y)
-CONFIGURED_APPS += examples/keypadtest
-endif
-
-ifeq ($(CONFIG_EXAMPLES_LCDRW),y)
-CONFIGURED_APPS += examples/lcdrw
-endif
-
-ifeq ($(CONFIG_EXAMPLES_MM),y)
-CONFIGURED_APPS += examples/mm
-endif
-
-ifeq ($(CONFIG_EXAMPLES_MODBUS),y)
-CONFIGURED_APPS += examples/modbus
-endif
-
-ifeq ($(CONFIG_EXAMPLES_MOUNT),y)
-CONFIGURED_APPS += examples/mount
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NETTEST),y)
-CONFIGURED_APPS += examples/nettest
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NSH),y)
-CONFIGURED_APPS += examples/nsh
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NULL),y)
-CONFIGURED_APPS += examples/null
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NX),y)
-CONFIGURED_APPS += examples/nx
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NXCONSOLE),y)
-CONFIGURED_APPS += examples/nxconsole
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NXFFS),y)
-CONFIGURED_APPS += examples/nxffs
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NXFLAT),y)
-CONFIGURED_APPS += examples/nxflat
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NXHELLO),y)
-CONFIGURED_APPS += examples/nxhello
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NXIMAGE),y)
-CONFIGURED_APPS += examples/nximage
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NXLINES),y)
-CONFIGURED_APPS += examples/nxlines
-endif
-
-ifeq ($(CONFIG_EXAMPLES_NXTEXT),y)
-CONFIGURED_APPS += examples/nxtext
-endif
-
-ifeq ($(CONFIG_EXAMPLES_OSTEST),y)
-CONFIGURED_APPS += examples/ostest
-endif
-
-ifeq ($(CONFIG_EXAMPLES_PASHELLO),y)
-CONFIGURED_APPS += examples/pashello
-endif
-
-ifeq ($(CONFIG_EXAMPLES_PIPE),y)
-CONFIGURED_APPS += examples/pipe
-endif
-
-ifeq ($(CONFIG_EXAMPLES_POLL),y)
-CONFIGURED_APPS += examples/poll
-endif
-
-ifeq ($(CONFIG_EXAMPLES_PWM),y)
-CONFIGURED_APPS += examples/pwm
-endif
-
-ifeq ($(CONFIG_EXAMPLES_POSIXSPAWN),y)
-CONFIGURED_APPS += examples/posix_spawn
-endif
-
-ifeq ($(CONFIG_EXAMPLES_QENCODER),y)
-CONFIGURED_APPS += examples/qencoder
-endif
-
-ifeq ($(CONFIG_EXAMPLES_RELAYS),y)
-CONFIGURED_APPS += examples/relays
-endif
-
-ifeq ($(CONFIG_EXAMPLES_RGMP),y)
-CONFIGURED_APPS += examples/rgmp
-endif
-
-ifeq ($(CONFIG_EXAMPLES_ROMFS),y)
-CONFIGURED_APPS += examples/romfs
-endif
-
-ifeq ($(CONFIG_EXAMPLES_SENDMAIL),y)
-CONFIGURED_APPS += examples/sendmail
-endif
-
-ifeq ($(CONFIG_EXAMPLES_SERLOOP),y)
-CONFIGURED_APPS += examples/serloop
-endif
-
-ifeq ($(CONFIG_EXAMPLES_TELNETD),y)
-CONFIGURED_APPS += examples/telnetd
-endif
-
-ifeq ($(CONFIG_EXAMPLES_THTTPD),y)
-CONFIGURED_APPS += examples/thttpd
-endif
-
-ifeq ($(CONFIG_EXAMPLES_TIFF),y)
-CONFIGURED_APPS += examples/tiff
-endif
-
-ifeq ($(CONFIG_EXAMPLES_TOUCHSCREEN),y)
-CONFIGURED_APPS += examples/touchscreen
-endif
-
-ifeq ($(CONFIG_EXAMPLES_UDP),y)
-CONFIGURED_APPS += examples/udp
-endif
-
-ifeq ($(CONFIG_EXAMPLES_UIP),y)
-CONFIGURED_APPS += examples/uip
-endif
-
-ifeq ($(CONFIG_EXAMPLES_USBSERIAL),y)
-CONFIGURED_APPS += examples/usbserial
-endif
-
-ifeq ($(CONFIG_EXAMPLES_USBMSC),y)
-CONFIGURED_APPS += examples/usbmsc
-endif
-
-ifeq ($(CONFIG_EXAMPLES_USBTERM),y)
-CONFIGURED_APPS += examples/usbterm
-endif
-
-ifeq ($(CONFIG_EXAMPLES_WATCHDOG),y)
-CONFIGURED_APPS += examples/watchdog
-endif
-
-ifeq ($(CONFIG_EXAMPLES_WGET),y)
-CONFIGURED_APPS += examples/wget
-endif
-
-ifeq ($(CONFIG_EXAMPLES_WGETJSON),y)
-CONFIGURED_APPS += examples/wgetjson
-endif
-
-ifeq ($(CONFIG_EXAMPLES_XMLRPC),y)
-CONFIGURED_APPS += examples/xmlrpc
-endif
diff --git a/apps/examples/Makefile b/apps/examples/Makefile
deleted file mode 100644
index 6b614b1aa..000000000
--- a/apps/examples/Makefile
+++ /dev/null
@@ -1,129 +0,0 @@
-############################################################################
-# apps/examples/Makefile
-#
-#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config	# Current configuration
-
-# Sub-directories
-
-SUBDIRS  = adc can cdcacm nsh
-
-#SUBDIRS  = adc buttons can cdcacm composite cxxtest dhcpd discover elf ftpc
-#SUBDIRS += ftpd hello helloxx hidkbd igmp json keypadtest lcdrw mm modbus mount
-#SUBDIRS += nettest nsh null nx nxconsole nxffs nxflat nxhello nximage
-#SUBDIRS += nxlines nxtext ostest  pashello pipe poll pwm posix_spawn qencoder
-#SUBDIRS += relays rgmp romfs serloop telnetd thttpd tiff touchscreen udp uip
-#SUBDIRS += usbserial sendmail usbstorage usbterm watchdog wget wgetjson
-
-# Sub-directories that might need context setup.  Directories may need
-# context setup for a variety of reasons, but the most common is because
-# the example may be built as an NSH built-in function.
-#
-# Directories that may be built as NSH built-in functions may have their
-# own configuration setting (like CONFIG_EXAMPLES_HELLOXX_BUILTIN), but
-# many only depend on the generic CONFIG_NSH_BUILTIN_APPS setting.  And
-# there a few which an ONLY be built as NSH built-in applications; these
-# are included in the list unconditionally.
-
-CNTXTDIRS = pwm
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-
-CNTXTDIRS += adc can cdcacm
-
-#CNTXTDIRS += adc can cdcacm composite cxxtest dhcpd discover ftpd hello json
-#CNTXTDIRS += keypadtestmodbus nettest nxlines relays qencoder telnetd watchdog
-#CNTXTDIRS += wgetjson
-endif
-
-ifeq ($(CONFIG_EXAMPLES_HELLOXX_BUILTIN),y)
-CNTXTDIRS += helloxx
-endif
-ifeq ($(CONFIG_EXAMPLES_LCDRW_BUILTIN),y)
-CNTXTDIRS += lcdrw
-endif
-ifeq ($(CONFIG_EXAMPLES_NX_BUILTIN),y)
-CNTXTDIRS += nx
-endif
-ifeq ($(CONFIG_EXAMPLES_NXHELLO_BUILTIN),y)
-CNTXTDIRS += nxhello
-endif
-ifeq ($(CONFIG_EXAMPLES_NXIMAGE_BUILTIN),y)
-CNTXTDIRS += nximage
-endif
-ifeq ($(CONFIG_EXAMPLES_NXTEXT_BUILTIN),y)
-CNTXTDIRS += nxtext
-endif
-ifeq ($(CONFIG_EXAMPLES_OSTEST_BUILTIN),y)
-CNTXTDIRS += ostest
-endif
-ifeq ($(CONFIG_EXAMPLES_TIFF_BUILTIN),y)
-CNTXTDIRS += tiff
-endif
-ifeq ($(CONFIG_EXAMPLES_TOUCHSCREEN_BUILTIN),y)
-CNTXTDIRS += touchscreen
-endif
-ifeq ($(CONFIG_EXAMPLES_USBMSC_BUILTIN),y)
-CNTXTDIRS += usbstorage
-endif
-ifeq ($(CONFIG_EXAMPLES_USBTERM_BUILTIN),y)
-CNTXTDIRS += usbterm
-endif
-
-all: nothing
-
-.PHONY: nothing context depend clean distclean
-
-define SDIR_template
-$(1)_$(2):
-	$(Q) $(MAKE) -C $(1) $(2) TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)"
-endef
-
-$(foreach SDIR, $(CNTXTDIRS), $(eval $(call SDIR_template,$(SDIR),context)))
-$(foreach SDIR, $(SUBDIRS), $(eval $(call SDIR_template,$(SDIR),depend)))
-$(foreach SDIR, $(SUBDIRS), $(eval $(call SDIR_template,$(SDIR),clean)))
-$(foreach SDIR, $(SUBDIRS), $(eval $(call SDIR_template,$(SDIR),distclean)))
-
-nothing:
-
-context: $(foreach SDIR, $(CNTXTDIRS), $(SDIR)_context)
-
-depend: $(foreach SDIR, $(SUBDIRS), $(SDIR)_depend)
-
-clean: $(foreach SDIR, $(SUBDIRS), $(SDIR)_clean)
-
-distclean: $(foreach SDIR, $(SUBDIRS), $(SDIR)_distclean)
-
--include Make.dep
-
diff --git a/apps/examples/README.txt b/apps/examples/README.txt
deleted file mode 100644
index 03d43f1a0..000000000
--- a/apps/examples/README.txt
+++ /dev/null
@@ -1,1928 +0,0 @@
-examples
-^^^^^^^^
-
-  appconfig and CONFIG_APPS
-  
-    The examples directory contains several sample applications that
-    can be linked with NuttX.  The specific example is selected in the
-    configs/<board-name>/appconfig file via the CONFIGURED_APPS setting.
-    This setting provides the path to the directory containing the
-    application Makefile (this path is a relative to the apps/ top-
-    level directory).  For example, 
-
-      CONFIGURE_APPS += examples/ostest
-
-    Selects the examples/ostest example.
-
-  Built-In functions
-
-    Some of the examples may be built as "built-in" functions that
-    can be executed at run time (rather than as NuttX "main" programs).
-    These "built-in" examples can be also be executed from the NuttShell
-    (NSH) command line.  In order to configure these built-in  NSH
-    functions, you have to set up the following:
-
-    - CONFIG_NSH_BUILTIN_APPS - Enable support for external registered,
-      "named" applications that can be executed from the NSH
-      command line (see apps/README.txt for more information).
-    - CONFIG_EXAMPLES_XYZ_BUILTIN -- Build the XYZ example as a "built-in"
-      that can be executed from the NSH command line (where XYZ is
-      the specific example.  See the following for examples that
-      support this option).
-
-examples/adc
-^^^^^^^^^^^^
-
-  A mindlessly simple test of an ADC devices.  It simply reads from the
-  ADC device and dumps the data to the console forever.
-
-  This test depends on these specific ADC/NSH configurations settings (your
-  specific ADC settings might require additional settings).
-
-    CONFIG_ADC - Enabled ADC support
-    CONFIG_NSH_BUILTIN_APPS - Build the ADC test as an NSH built-in function.
-      Default: Built as a standalone problem
-
-  Specific configuration options for this example include:
- 
-    CONFIG_EXAMPLES_ADC_DEVPATH - The default path to the ADC device. Default: /dev/adc0
-    CONFIG_EXAMPLES_ADC_NSAMPLES - If CONFIG_NSH_BUILTIN_APPS
-      is defined, then the number of samples is provided on the command line
-      and this value is ignored.  Otherwise, this number of samples is
-      collected and the program terminates.  Default:  Samples are collected
-      indefinitely.
-    CONFIG_EXAMPLES_ADC_GROUPSIZE - The number of samples to read at once.
-      Default: 4
-
-examples/buttons
-^^^^^^^^^^^^^^^^
-
-  This is a simple configuration that may be used to test the board-
-  specific button interfaces.  Configuration options:
-
-  CONFIG_ARCH_BUTTONS                 - Must be defined for button support
-  CONFIG_EXAMPLES_BUTTONS_MIN         - Lowest button number (MIN=0)
-  CONFIG_EXAMPLES_BUTTONS_MAX         - Highest button number (MAX=7)
-
-  CONFIG_ARCH_IRQBUTTONS              - Must be defined for interrupting button support
-  CONFIG_EXAMPLES_IRQBUTTONS_MIN      - Lowest interrupting button number (MIN=0)
-  CONFIG_EXAMPLES_IRQBUTTONS_MAX      - Highest interrupting button number (MAX=7)
-
-  Name strings for buttons:
-  
-    CONFIG_EXAMPLES_BUTTONS_NAME0, CONFIG_EXAMPLES_BUTTONS_NAME1,
-    CONFIG_EXAMPLES_BUTTONS_NAME2, CONFIG_EXAMPLES_BUTTONS_NAME3,
-    CONFIG_EXAMPLES_BUTTONS_NAME4, CONFIG_EXAMPLES_BUTTONS_NAME5,
-    CONFIG_EXAMPLES_BUTTONS_NAME6, CONFIG_EXAMPLES_BUTTONS_NAME7,
-
-  Additional architecture-/board- specific configuration settings may also
-  be required.
-
-  NOTE: This test exercises internal button driver interfaces.  As such, it
-  relies on internal OS interfaces that are not normally available to a
-  user-space program.  As a result, this example cannot be used if a
-  NuttX is built as a protected, supervisor kernel (CONFIG_NUTTX_KERNEL).
-
-examples/can
-^^^^^^^^^^^^
-
-  If the CAN device is configured in loopback mode, then this example can
-  be used to test the CAN device in loop back mode.  It simple sinces a
-  sequence of CAN messages and verifies that those messages are returned
-  exactly as sent.
-
-  This test depends on these specific CAN/NSH configurations settings (your
-  specific CAN settings might require additional settings).
-
-    CONFIG_CAN - Enables CAN support.
-    CONFIG_CAN_LOOPBACK - A CAN driver may or may not support a loopback
-      mode for testing. The STM32 CAN driver does support loopback mode.
-    CONFIG_NSH_BUILTIN_APPS - Build the CAN test as an NSH built-in function.
-      Default: Built as a standalone problem
- 
-  Specific configuration options for this example include:
- 
-    CONFIG_EXAMPLES_CAN_DEVPATH - The path to the CAN device. Default: /dev/can0
-    CONFIG_EXAMPLES_CAN_NMSGS - If CONFIG_NSH_BUILTIN_APPS
-      is defined, then the number of loops is provided on the command line
-      and this value is ignored.  Otherwise, this number of CAN message is
-      collected and the program terminates.  Default:  If built as an NSH
-      built-in, the default is 32.  Otherwise messages are sent and received
-      indefinitely.
-
-  The default behavior assumes loopback mode.  Messages are sent, then read
-  and verified.  The behavior can be altered for other kinds of testing where
-  the test only sends or received (but does not verify) can messages.
-
-   CONFIG_EXAMPLES_CAN_READONLY - Only receive messages
-   CONFIG_EXAMPLES_CAN_WRITEONLY - Only send messages
-
-examples/cdcacm
-^^^^^^^^^^^^^^^
-
-  This very simple example shows how a USB CDC/ACM serial can be dynamically
-  connected and disconnected from a host.  This example can only be used as
-  an NSH built-int command.  If built-in, then two new NSH commands will be
-  supported:
-
-    1. sercon - Connect the CDC/ACM serial device
-    2. serdis - Disconnect the CDC/ACM serial device
-
-  Configuration prequisites (not complete):
-
-    CONFIG_USBDEV=y                 : USB device support must be enabled
-    CONFIG_CDCACM=y                 : The CDC/ACM driver must be built
-    CONFIG_NSH_BUILTIN_APPS         : NSH built-in application support must be enabled
-
-  Configuration options specific to this example:
-
-    CONFIG_EXAMPLES_CDCACM_DEVMINOR : The minor number of the CDC/ACM device.
-                                    : i.e., the 'x' in /dev/ttyACMx
-
-  If CONFIG_USBDEV_TRACE is enabled (or CONFIG_DEBUG and CONFIG_DEBUG_USB, or
-  CONFIG_USBDEV_TRACE), then the example code will also initialize the USB trace
-  output.  The amount of trace output can be controlled using:
-
-  CONFIG_EXAMPLES_CDCACM_TRACEINIT
-    Show initialization events
-  CONFIG_EXAMPLES_CDCACM_TRACECLASS
-    Show class driver events
-  CONFIG_EXAMPLES_CDCACM_TRACETRANSFERS
-    Show data transfer events
-  CONFIG_EXAMPLES_CDCACM_TRACECONTROLLER
-    Show controller events
-  CONFIG_EXAMPLES_CDCACM_TRACEINTERRUPTS
-    Show interrupt-related events.
-
-  Note:  This example is only enables or disable USB CDC/ACM via the NSH
-  'sercon' and 'serdis' command.  It will enable and disable tracing per
-  the settings before enabling and after disabling the CDC/ACM device. It
-  will not, however, monitor buffered trace data in the interim.  If
-  CONFIG_USBDEV_TRACE is defined (and the debug options are not), other
-  application logic will need to monitor the buffered trace data.
-
-examples/composite
-^^^^^^^^^^^^^^^^^^
-
-  This example test a USB composite device.  The only supported composite is
-  CDC/ACM serial with a USB mass storage device.
-
-  Required overall configuration:
-
-  CONFIG_USBDEV=y           - USB device support
-  CONFIG_USBDEV_COMPOSITE=y - USB composite device support
-  CONFIG_COMPOSITE_IAD=y    - Interface associate descriptor needed
-
-  CONFIG_CDCACM=y           - USB CDC/ACM serial device support
-  CONFIG_CDCACM_COMPOSITE=y - USB CDC/ACM serial composite device support
-  CONFIG_CDCACM_IFNOBASE=0  - CDC/ACM interfaces start with number 0
-  CONFIG_CDCACM_STRBASE=4   - Base of string numbers (not really needed)
-  CONFIG_CDCACM_EPINTIN=1   - Endpoint numbers must be unique
-  CONFIG_CDCACM_EPBULKIN=2
-  CONFIG_CDCACM_EPBULKOUT=3
-
-  CONFIG_USBMSC             - USB mass storage device support
-  CONFIG_USBMSC_COMPOSITE=y - USB mass storage composite device support
-  CONFIG_USBMSC_IFNOBASE=2  - USB mass storage interfaces start with number 2
-  CONFIG_USBMSC_STRBASE=4   - Base of string numbers (needed)
-  CONFIG_USBMSC_EPBULKOUT=4 - Endpoint numbers must be unique
-  CONFIG_USBMSC_EPBULKIN=5
-
-  CONFIG_NSH_BUILTIN_APPS
-    This example can be built as two NSH "built-in" commands if this option
-    is selected: 'conn' will connect the USB composite device; 'msdis'
-    will disconnect the USB composite device.
-
-  Configuration options unique to this example:
-
-  CONFIG_EXAMPLES_COMPOSITE_DEBUGMM
-    Enables some debug tests to check for memory usage and memory leaks.
-
-  CONFIG_EXAMPLES_COMPOSITE_NLUNS
-    Defines the number of logical units (LUNs) exported by the USB storage
-    driver.  Each LUN corresponds to one exported block driver (or partition
-    of a block driver).  May be 1, 2, or 3.  Default is 1.
-  CONFIG_EXAMPLES_COMPOSITE_DEVMINOR1
-    The minor device number of the block driver for the first LUN. For
-    example, N in /dev/mmcsdN.  Used for registering the block driver. Default
-    is zero.
-  CONFIG_EXAMPLES_COMPOSITE_DEVPATH1
-    The full path to the registered block driver.  Default is "/dev/mmcsd0"
-  CONFIG_EXAMPLES_COMPOSITE_DEVMINOR2 and CONFIG_EXAMPLES_COMPOSITE_DEVPATH2
-    Similar parameters that would have to be provided if CONFIG_EXAMPLES_COMPOSITE_NLUNS
-    is 2 or 3.  No defaults.
-  CONFIG_EXAMPLES_COMPOSITE_DEVMINOR3 and CONFIG_EXAMPLES_COMPOSITE_DEVPATH2
-    Similar parameters that would have to be provided if CONFIG_EXAMPLES_COMPOSITE_NLUNS
-    is 3.  No defaults.
-  CONFIG_EXAMPLES_COMPOSITE_BUFLEN. Default 256.
-
-  CONFIG_EXAMPLES_COMPOSITE_TTYUSB - The minor number of the USB serial device.
-    Default is zero (corresponding to /dev/ttyUSB0 or /dev/ttyACM0).  Default is zero.
-  CCONFIG_EXAMPLES_COMPOSITE_SERDEV - The string corresponding to
-    CONFIG_EXAMPLES_COMPOSITE_TTYUSB.  The default is "/dev/ttyUSB0" (for the PL2303
-    emulation) or "/dev/ttyACM0" (for the CDC/ACM serial device).
-  CONFIG_EXAMPLES_COMPOSITE_BUFSIZE - The size of the serial I/O buffer in
-    bytes.  Default 256 bytes.
- 
-  If CONFIG_USBDEV_TRACE is enabled (or CONFIG_DEBUG and CONFIG_DEBUG_USB), then
-  the example code will also manage the USB trace output.  The amount of trace output
-  can be controlled using:
-
-  CONFIG_EXAMPLES_COMPOSITE_TRACEINIT
-    Show initialization events
-  CONFIG_EXAMPLES_COMPOSITE_TRACECLASS
-    Show class driver events
-  CONFIG_EXAMPLES_COMPOSITE_TRACETRANSFERS
-    Show data transfer events
-  CONFIG_EXAMPLES_COMPOSITE_TRACECONTROLLER
-    Show controller events
-  CONFIG_EXAMPLES_COMPOSITE_TRACEINTERRUPTS
-    Show interrupt-related events.
-
-examples/cxxtest
-^^^^^^^^^^^^^^^^
-
-  This is a test of the C++ standard library.  At present a port of the uClibc++
-  C++ library is available.  Due to licensinging issues, the uClibc++ C++ library
-  is not included in the NuttX source tree by default, but must be installed
-  (see misc/uClibc++/README.txt for installation).
-
-  The  NuttX setting that are required include:
-
-    CONFIG_HAVE_CXX=y
-    CONFIG_HAVE_CXXINITIALIZE=y
-    CONFIG_UCLIBCXX=y
-
-  Additional uClibc++ settings may be required in your build environment.
-
-  The uClibc++ test includes simple test of:
-
-    - iostreams,
-    - STL,
-    - RTTI, and
-    - Exceptions
-
-examples/dhcpd
-^^^^^^^^^^^^^^
-
-  This examples builds a tiny DCHP server for the target system.
-  
-  NOTE: For test purposes, this example can be built as a
-  host-based DHCPD server.  This can be built as follows:
-
-    cd examples/dhcpd
-    make -f Makefile.host TOPDIR=<nuttx-directory>
-
-  NuttX configuration settings:
-  
-    CONFIG_NET=y                   - Of course
-    CONFIG_NSOCKET_DESCRIPTORS     - And, of course, you must allocate some
-                                     socket descriptors.
-    CONFIG_NET_UDP=y               - UDP support is required for DHCP
-                                     (as well as various other UDP-related
-                                     configuration settings)
-    CONFIG_NET_BROADCAST=y         - UDP broadcast support is needed.
-
-    CONFIG_EXAMPLES_DHCPD_NOMAC     - (May be defined to use software assigned MAC)
-    CONFIG_EXAMPLES_DHCPD_IPADDR    - Target IP address
-    CONFIG_EXAMPLES_DHCPD_DRIPADDR  - Default router IP addess
-    CONFIG_EXAMPLES_DHCPD_NETMASK   - Network mask
-
-  See also CONFIG_NETUTILS_DHCPD_* settings described elsewhere
-  and used in netutils/dhcpd/dhcpd.c. These settings are required
-  to described the behavior of the daemon.
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration driver with instruction to build applications
-  like:
-
-  CONFIGURED_APPS += uiplib
-
-examples/discover
-^^^^^^^^^^^^^^^^^
-
-  This example exercises netutils/discover utility.  This example initializes
-  and starts the UDP discover daemon. This daemon is useful for discovering
-  devices in local networks, especially with DHCP configured devices.  It
-  listens for UDP broadcasts which also can include a device class so that
-  groups of devices can be discovered. It is also possible to address all
-  classes with a kind of broadcast discover.
-
-  This example will automatically be built as an NSH built-in if
-  CONFIG_NSH_BUILTIN_APPS is selected.  Otherwise, it will be a standalone
-  program with entry point "discover_main".
-
-  NuttX configuration settings:
-
-    CONFIG_EXAMPLES_DISCOVER_DHCPC - DHCP Client
-    CONFIG_EXAMPLES_DISCOVER_NOMAC - Use canned MAC address
-    CONFIG_EXAMPLES_DISCOVER_IPADDR - Target IP address
-    CONFIG_EXAMPLES_DISCOVER_DRIPADDR - Router IP address
-    CONFIG_EXAMPLES_DISCOVER_NETMASK - Network Mask
-
-examples/elf
-^^^^^^^^^^^^
-
-  This example builds a small ELF loader test case.  This includes several
-  test programs under examples/elf tests.  These tests are build using
-  the relocatable ELF format and installed in a ROMFS file system.  At run time,
-  each program in the ROMFS file system is executed.  Requires CONFIG_ELF.
-  Other configuration options:
-
-    CONFIG_EXAMPLES_ELF_DEVMINOR - The minor device number of the ROMFS block
-      driver. For example, the N in /dev/ramN. Used for registering the RAM
-      block driver that will hold the ROMFS file system containing the ELF
-      executables to be tested.  Default: 0
-
-    CONFIG_EXAMPLES_ELF_DEVPATH - The path to the ROMFS block driver device.  This
-      must match EXAMPLES_ELF_DEVMINOR. Used for registering the RAM block driver
-      that will hold the ROMFS file system containing the ELF executables to be
-      tested.  Default: "/dev/ram0"
-
-  NOTES:
-
-  1. CFLAGS should be provided in CELFFLAGS.  RAM and FLASH memory regions
-     may require long allcs.  For ARM, this might be:
-
-       CELFFLAGS = $(CFLAGS) -mlong-calls
-
-     Similarly for C++ flags which must be provided in CXXELFFLAGS.
-
-  2. Your top-level nuttx/Make.defs file must also include an approproate definition,
-     LDELFFLAGS, to generate a relocatable ELF object.  With GNU LD, this should
-     include '-r' and '-e main' (or _main on some platforms).
-
-       LDELFFLAGS = -r -e main
-
-     If you use GCC to link, you make also need to include '-nostdlib' or 
-     '-nostartfiles' and '-nodefaultlibs'.
-
-  3. This example also requires genromfs.  genromfs can be build as part of the
-     nuttx toolchain.  Or can built from the genromfs sources that can be found
-     at misc/tools/genromfs-0.5.2.tar.gz.  In any event, the PATH variable must
-     include the path to the genromfs executable.
-
-  4. ELF size:  The ELF files in this example are, be default, quite large
-     because they include a lot of "build garbage".  You can greatly reduce the
-     size of the ELF binaries are using the 'objcopy --strip-unneeded' command to
-     remove un-necessary information from the ELF files.
-
-  5. Simulator.  You cannot use this example with the the NuttX simulator on
-     Cygwin.  That is because the Cygwin GCC does not generate ELF file but
-     rather some Windows-native binary format.
-
-     If you really want to do this, you can create a NuttX x86 buildroot toolchain
-     and use that be build the ELF executables for the ROMFS file system.
-
-  6. Linker scripts.  You might also want to use a linker scripts to combine
-     sections better.  An example linker script is at nuttx/binfmt/libelf/gnu-elf.ld.
-     That example might have to be tuned for your particular linker output to
-     position additional sections correctly.  The GNU LD LDELFFLAGS then might
-     be:
-
-       LDELFFLAGS = -r -e main -T$(TOPDIR)/binfmt/libelf/gnu-elf.ld
-
-examples/ftpc
-^^^^^^^^^^^^^
-
-  This is a simple FTP client shell used to exercise the capabilities
-  of the FTPC library (apps/netutils/ftpc).  This example is configured
-  to that it will only work as a "built-in" program that can be run from
-  NSH when CONFIG_NSH_BUILTIN_APPS is defined.
-
-  From NSH, the startup command sequence is as follows.  This is only
-  an example, your configration could have different mass storage devices,
-  mount paths, and FTP directories:
-
-    nsh> mount -t vfat /dev/mmcsd0 /tmp # Mount the SD card at /tmp
-    nsh> cd /tmp                        # cd into the /tmp directory
-    nsh> ftpc xx.xx.xx.xx[:pp]          # Start the FTP client
-    nfc> login <name> <password>        # Log into the FTP server
-    nfc> help                           # See a list of FTP commands
-
-  where xx.xx.xx.xx is the IP address of the FTP server and pp is an
-  optional port number.
-
-  NOTE:  By default, FTPC uses readline to get data from stdin.  So your
-  appconfig file must have the following build path:
-
-    CONFIGURED_APPS += system/readline
-
-  NOTE: If you use the ftpc task over a telnet NSH connection, then you
-  should set the following configuration item:
-
-    CONFIG_EXAMPLES_FTPC_FGETS=y
-
-  By default, the FTPC client will use readline() to get characters from
-  the console.  Readline includes and command-line editor and echos
-  characters received in stdin back through stdout.  Neither of these
-  behaviors are desire-able if Telnet is used.
-
-  You may also want to define the following in your configuration file.
-  Otherwise, you will have not feeback about what is going on:
- 
-    CONFIG_DEBUG=y
-    CONFIG_DEBUG_VERBOSE=y
-    CONFIG_DEBUG_FTPC=y
-
-examples/ftpd
-^^^^^^^^^^^^^^
-
-  This example exercises the FTPD daemon at apps/netuils/ftpd.  Below are
-  configurations specific to the FTPD example (the FTPD daemon itself may
-  require other configuration options as well).
-
-   CONFIG_EXAMPLES_FTPD_PRIO - Priority of the FTP daemon.
-     Default: SCHED_PRIORITY_DEFAULT
-   CONFIG_EXAMPLES_FTPD_STACKSIZE - Stack size allocated for the
-     FTP daemon. Default: 2048
-   CONFIG_EXAMPLES_FTPD_NONETINIT - Define to suppress configuration of the
-     network by apps/examples/ftpd.  You would need to suppress network
-     configuration if the network is configuration prior to running the
-     example.
-
-  NSH always initializes the network so if CONFIG_NSH_BUILTIN_APPS is
-  defined, so is CONFIG_EXAMPLES_FTPD_NONETINIT (se it does not explicitly
-  need to be defined in that case):
-
-    CONFIG_NSH_BUILTIN_APPS - Build the FTPD daemon example test as an
-      NSH built-in function.  By default the FTPD daemon will be built
-      as a standalone application.
-
-  If CONFIG_EXAMPLES_FTPD_NONETINIT is not defined, then the following may
-  be specified to customized the network configuration:
-
-    CONFIG_EXAMPLES_FTPD_NOMAC - If the hardware has no MAC address of its
-      own, define this =y to provide a bogus address for testing.
-    CONFIG_EXAMPLES_FTPD_IPADDR - The target IP address.  Default 10.0.0.2
-    CONFIG_EXAMPLES_FTPD_DRIPADDR - The default router address. Default
-      10.0.0.1
-    CONFIG_EXAMPLES_FTPD_NETMASK - The network mask.  Default: 255.255.255.0
-
-  Other required configuration settings:  Of course TCP networking support
-  is required.  But here are a couple that are less obvious:
-
-    CONFIG_DISABLE_PTHREAD - pthread support is required
-    CONFIG_DISABLE_POLL - poll() support is required
-
-  Other FTPD configuration options thay may be of interest:
-
-    CONFIG_FTPD_VENDORID - The vendor name to use in FTP communications.
-      Default: "NuttX"
-    CONFIG_FTPD_SERVERID - The server name to use in FTP communications.
-      Default: "NuttX FTP Server"
-    CONFIG_FTPD_CMDBUFFERSIZE - The maximum size of one command.  Default:
-      512 bytes.
-    CONFIG_FTPD_DATABUFFERSIZE - The size of the I/O buffer for data
-      transfers.  Default: 2048 bytes.
-    CONFIG_FTPD_WORKERSTACKSIZE - The stacksize to allocate for each
-      FTP daemon worker thread.  Default:  2048 bytes.
-
-  The appconfig file (apps/.config) should include:
-
-    CONFIGURED_APPS += examples/ftpd
-    CONFIGURED_APPS += netutils/uiplib
-    CONFIGURED_APPS += netutils/ftpd
-
-examples/hello
-^^^^^^^^^^^^^^
-
-  This is the mandatory, "Hello, World!!" example.  It is little more
-  than examples/null with a single printf statement.  Really useful only
-  for bringing up new NuttX architectures.
-
-  * CONFIG_NSH_BUILTIN_APPS
-    Build the "Hello, World" example as an NSH built-in application.
-
-examples/helloxx
-^^^^^^^^^^^^^^^^
-
-  This is C++ version of the "Hello, World!!" example.  It is intended
-  only to verify that the C++ compiler is functional, that basic C++
-  library suupport is available, and that class are instantiated
-  correctly.
-
-  NuttX configuration prerequisites:
-
-    CONFIG_HAVE_CXX -- Enable C++ Support
-
-  Optional NuttX configuration settings:
-  
-    CONFIG_HAVE_CXXINITIALIZE -- Enable support for static constructors
-      (may not be available on all platforms).
-
-  NuttX configuration settings specific to this examp;le:
-
-    CONFIG_EXAMPLES_HELLOXX_BUILTIN -- Build the helloxx example as a
-      "built-in"  that can be executed from the NSH command line.
-    CONFIG_EXAMPLES_HELLOXX_NOSTACKCONST - Set if the system does not
-      support construction of objects on the stack.
-
-  Also needed:
-
-    CONFIG_HAVE_CXX=y
-
-  And you may have to tinker with the following to get libxx to compile
-  properly:
-
-    CONFIG_CXX_NEWLONG=y or =n
-
-  The argument of the 'new' operators should take a type of size_t.  But size_t
-  has an unknown underlying.  In the nuttx sys/types.h header file, size_t
-  is typed as uint32_t (which is determined by architecture-specific logic).
-  But the C++ compiler may believe that size_t is of a different type resulting
-  in compilation errors in the operator.  Using the underlying integer type
-  Instead of size_t seems to resolve the compilation issues.
-
-examples/hidkbd
-^^^^^^^^^^^^^^^^
-
-  This is a simple test to debug/verify the USB host HID keyboard class
-  driver.
-
-    CONFIG_EXAMPLES_HIDKBD_DEFPRIO - Priority of "waiter" thread.  Default:
-      50
-    CONFIG_EXAMPLES_HIDKBD_STACKSIZE - Stacksize of "waiter" thread. Default
-      1024
-    CONFIG_EXAMPLES_HIDKBD_DEVNAME - Name of keyboard device to be used.
-      Default: "/dev/kbda"
-    CONFIG_EXAMPLES_HIDKBD_ENCODED - Decode special key press events in the
-      user buffer.  In this case, the example coded will use the interfaces
-      defined in include/nuttx/input/kbd_codec.h to decode the returned
-      keyboard data.  These special keys include such things as up/down
-      arrows, home and end keys, etc.  If this not defined, only 7-bit print-
-      able and control ASCII characters will be provided to the user.
-      Requires CONFIG_HIDKBD_ENCODED && CONFIG_LIB_KBDCODEC
-
-endif
-examples/igmp
-^^^^^^^^^^^^^
-
-  This is a trivial test of the NuttX IGMP capability.  It present it
-  does not do much of value -- Much more is needed in order to verify
-  the IGMP features!
-
-  * CONFIG_EXAMPLES_IGMP_NOMAC
-      Set if the hardware has no MAC address; one will be assigned
-  * CONFIG_EXAMPLES_IGMP_IPADDR
-      Target board IP address
-  * CONFIG_EXAMPLES_IGMP_DRIPADDR
-      Default router address
-  * CONFIG_EXAMPLES_IGMP_NETMASK
-      Network mask
-  * CONFIG_EXAMPLES_IGMP_GRPADDR
-      Multicast group address
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration driver with instruction to build applications
-  like:
-
-  CONFIGURED_APPS += uiplib
-
-examples/json
-^^^^^^^^^^^^^
-
-  This example exercises the cJSON implementation at apps/netutils/json.
-  This example contains logic taken from the cJSON project:
-
-    http://sourceforge.net/projects/cjson/
-
-  The example corresponds to SVN revision r42 (with lots of changes for
-  NuttX coding standards).  As of r42, the SVN repository was last updated
-  on 2011-10-10 so I presume that the code is stable and there is no risk
-  of maintaining duplicate logic in the NuttX repository.
-
-examples/keypadtest
-^^^^^^^^^^^^^^^^^^^
-
-  This is a generic keypad test example.  It is similar to the USB hidkbd
-  example, but makes no assumptions about the underlying keyboard interface.
-  It uses the interfaces of include/nuttx/input/keypad.h.
-
-  CONFIG_EXAMPLES_KEYPADTEST - Selects the keypadtest example (only need
-    if the mconf/Kconfig tool is used.
-
-  CONFIG_EXAMPLES_KEYPAD_DEVNAME - The name of the keypad device that will
-    be opened in order to perform the keypad test.  Default: "/dev/keypad"
-
-examples/lcdrw
-^^^^^^^^^^^^^^
-
-  This example may be used to verify if you can or cannot read data
-  correctly from an LCD interface.  At present, this supports only LCDs
-  with RGB565 color format.
-
-  * CONFIG_EXAMPLES_LDCRW_DEVNO
-      LCD device number.  Default: 0
-  * CONFIG_EXAMPLES_LDCRW_XRES
-      LCD X resolution.  Default: 240
-  * CONFIG_EXAMPLES_LDCRW_YRES
-      LCD Y resolution.  Default: 320
-  
-  NOTE: This test exercises internal lcd driver interfaces.  As such, it
-  relies on internal OS interfaces that are not normally available to a
-  user-space program.  As a result, this example cannot be used if a
-  NuttX is built as a protected, supervisor kernel (CONFIG_NUTTX_KERNEL).
-
-examples/mm
-^^^^^^^^^^^
-
-  This is a simplified version of the "built-in" memory manager test of
-  mm/mm_test.c.  It is simplified because it does not have access to the
-  internals of the memory manager as does mm/mm_test.c, but it has the
-  advantage that it runs in the actual NuttX tasking environment (the
-  mm/mm_test.c only runs in a PC simulation environment).
-
-examples/modbus
-^^^^^^^^^^^^^^^
-
-  This is a port of the FreeModbus Linux demo.  It derives from the
-  demos/LINUX directory of the FreeModBus version 1.5.0 (June 6, 2010)
-  that can be downloaded in its entirety from http://developer.berlios.de/project/showfiles.php?group_id=6120.
-
-    CONFIG_EXAMPLES_MODBUS_PORT, Default 0 (for /dev/ttyS0)
-    CONFIG_EXAMPLES_MODBUS_BAUD, Default B38400
-    CONFIG_EXAMPLES_MODBUS_PARITY, Default MB_PAR_EVEN
-
-    CONFIG_EXAMPLES_MODBUS_REG_INPUT_START, Default 1000
-    CONFIG_EXAMPLES_MODBUS_REG_INPUT_NREGS, Default 4
-    CONFIG_EXAMPLES_MODBUS_REG_HOLDING_START, Default 2000
-    CONFIG_EXAMPLES_MODBUS_REG_HOLDING_NREGS, Default 130
-
-  The FreeModBus library resides at apps/modbus.  See apps/modbus/README.txt
-  for additional configuration information.
-
-examples/mount
-^^^^^^^^^^^^^^
-
-  This contains a simple test of filesystem mountpoints.
-
-  * CONFIG_EXAMPLES_MOUNT_DEVNAME
-      The name of the user-provided block device to mount.
-      If CONFIG_EXAMPLES_MOUNT_DEVNAME is not provided, then
-      a RAM disk will be configured.
-
-  * CONFIG_EXAMPLES_MOUNT_NSECTORS
-      The number of "sectors" in the RAM disk used when
-      CONFIG_EXAMPLES_MOUNT_DEVNAME is not defined.
-
-  * CONFIG_EXAMPLES_MOUNT_SECTORSIZE
-      The size of each sectors in the RAM disk used when
-      CONFIG_EXAMPLES_MOUNT_DEVNAME is not defined.
-
-  * CONFIG_EXAMPLES_MOUNT_RAMDEVNO
-      The RAM device minor number used to mount the RAM disk used
-      when CONFIG_EXAMPLES_MOUNT_DEVNAME is not defined.  The
-      default is zero (meaning that "/dev/ram0" will be used).
-
-examples/nettest
-^^^^^^^^^^^^^^^^
-
-  This is a simple network test for verifying client- and server-
-  functionality in a TCP/IP connection.
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration driver with instruction to build applications
-  like:
-
-  CONFIGURED_APPS += uiplib
-
-examples/nsh
-^^^^^^^^^^^^
-
-  This directory provides an example of how to configure and use
-  the NuttShell (NSH) application.  NSH is a simple shell
-  application.  NSH is described in its own README located at
-  apps/nshlib/README.txt
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration driver with instruction to build applications
-  like:
-
-  CONFIGURED_APPS += nshlib
-
-  NOTE:  If the NSH serial console is used, then following is also
-  required to build the readline() library:
-
-  CONFIGURED_APPS += system/readline
-
-  And if networking is included:
-
-  CONFIGURED_APPS += uiplib
-  CONFIGURED_APPS += dhcpc
-  CONFIGURED_APPS += resolv
-  CONFIGURED_APPS += tftp
-  CONFIGURED_APPS += webclient
-
-  If the Telnet console is enabled, then the appconfig file (apps/.config)
-  should also include:
-
-  CONFIGURED_APPS += netutils/telnetd
-
-  Also if the Telnet console is enabled, make sure that you have the
-  following set in the NuttX configuration file or else the performance
-  will be very bad (because there will be only one character per TCP
-  transfer):
-  
-  CONFIG_STDIO_BUFFER_SIZE - Some value >= 64
-  CONFIG_STDIO_LINEBUFFER=y
-
-examples/nx
-^^^^^^^^^^^
-
-  This directory contains a simple test of a subset of the NX APIs
-  defined in include/nuttx/nx/nx.h.  The following configuration options
-  can be selected:
-
-    CONFIG_EXAMPLES_NX_BUILTIN -- Build the NX example as a "built-in"
-      that can be executed from the NSH command line    
-    CONFIG_EXAMPLES_NX_VPLANE -- The plane to select from the frame-
-      buffer driver for use in the test.  Default: 0
-    CONFIG_EXAMPLES_NX_DEVNO - The LCD device to select from the LCD
-      driver for use in the test: Default: 0
-    CONFIG_EXAMPLES_NX_BGCOLOR -- The color of the background.  Default depends on
-      CONFIG_EXAMPLES_NX_BPP.
-    CONFIG_EXAMPLES_NX_COLOR1 -- The color of window 1. Default depends on
-      CONFIG_EXAMPLES_NX_BPP.
-    CONFIG_EXAMPLES_NX_COLOR2 -- The color of window 2. Default depends on
-      CONFIG_EXAMPLES_NX_BPP.
-    CONFIG_EXAMPLES_NX_TBCOLOR -- The color of the toolbar. Default depends on
-      CONFIG_EXAMPLES_NX_BPP.
-    CONFIG_EXAMPLES_NX_FONTID - Selects the font (see font ID numbers in
-      include/nuttx/nx/nxfonts.h)
-    CONFIG_EXAMPLES_NX_FONTCOLOR -- The color of the fonts. Default depends on
-      CONFIG_EXAMPLES_NX_BPP.
-    CONFIG_EXAMPLES_NX_BPP -- Pixels per pixel to use.  Valid options
-      include 2, 4, 8, 16, 24, and 32.  Default is 32.
-    CONFIG_EXAMPLES_NX_RAWWINDOWS -- Use raw windows;  Default is to
-      use pretty, framed NXTK windows with toolbars.
-    CONFIG_EXAMPLES_NX_EXTERNINIT - The driver for the graphics device on
-      this platform requires some unusual initialization.  This is the
-      for, for example, SPI LCD/OLED devices.  If this configuration is
-      selected, then the platform code must provide an LCD initialization
-      function with a prototype like:
-
-      #ifdef CONFIG_NX_LCDDRIVER
-      FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno);
-      #else
-      FAR struct fb_vtable_s *up_nxdrvinit(unsigned int devno);
-      #endif
-
-  This test can be performed with either the single-user version of
-  NX or with the multiple user version of NX selected with CONFIG_NX_MULTIUSER.
-  If CONFIG_NX_MULTIUSER is defined, then the following configuration
-  options also apply:
-
-    CONFIG_EXAMPLES_NX_STACKSIZE -- The stacksize to use when creating
-      the NX server.  Default 2048
-    CONFIG_EXAMPLES_NX_CLIENTPRIO -- The client priority.  Default: 100
-    CONFIG_EXAMPLES_NX_SERVERPRIO -- The server priority.  Default: 120
-    CONFIG_EXAMPLES_NX_LISTENERPRIO -- The priority of the event listener
-      thread. Default 80.
-    CONFIG_EXAMPLES_NX_NOTIFYSIGNO -- The signal number to use with
-      nx_eventnotify().  Default: 4
-
-  If CONFIG_NX_MULTIUSER is defined, then the example also expects the
-  following settings and will generate an error if they are not as expected:
-
-    CONFIG_DISABLE_MQUEUE=n
-    CONFIG_DISABLE_SIGNALS=n
-    CONFIG_DISABLE_PTHREAD=n
-    CONFIG_NX_BLOCKING=y
-
-examples/nxconsole
-^^^^^^^^^^^^^^^^^^
-
-  This directory contains yet another version of the NuttShell (NSH).  This
-  version uses the NX console device defined in include/nuttx/nx/nxconsole.h
-  for output.  the result is that the NSH input still come from the standard
-  console input (probably a serial console).  But the text output will go to
-  an NX winbdow.  Prerequisite configuration settings for this test include:
-
-    CONFIG_NX=y              -- NX graphics must be enabled
-    CONFIG_NXCONSOLE=y       -- The NX console driver must be built
-    CONFIG_NX_MULTIUSER=y    -- NX multi-user support must be enabled.
-    CONFIG_DISABLE_MQUEUE=n  -- Message queue support must be available.
-    CONFIG_DISABLE_SIGNALS=n -- Signals are needed
-    CONFIG_DISABLE_PTHREAD=n -- pthreads are needed
-    CONFIG_NX_BLOCKING=y     -- pthread APIs must be blocking
-    CONFIG_NSH_CONSOLE=y     -- NSH must be configured to use a console.
-
-  The following configuration options can be selected to customize the
-  test:
-
-    CONFIG_EXAMPLES_NXCON_VPLANE -- The plane to select from the frame-
-      buffer driver for use in the test.  Default: 0
-    CONFIG_EXAMPLES_NXCON_DEVNO - The LCD device to select from the LCD
-      driver for use in the test: Default: 0
-    CONFIG_EXAMPLES_NXCON_BGCOLOR -- The color of the background.  Default
-      Default is a darker royal blue.
-    CONFIG_EXAMPLES_NXCON_WCOLOR -- The color of the window. Default is a light
-      slate blue.
-    CONFIG_EXAMPLES_NXCON_FONTID -- Selects the font (see font ID numbers in
-      include/nuttx/nx/nxfonts.h)
-    CONFIG_EXAMPLES_NXCON_FONTCOLOR -- The color of the fonts. Default is
-      black.
-    CONFIG_EXAMPLES_NXCON_BPP -- Pixels per pixel to use.  Valid options
-      include 2, 4, 8, 16, 24, and 32.  Default is 32.
-    CONFIG_EXAMPLES_NXCON_TOOLBAR_HEIGHT -- The height of the toolbar.
-      Default: 16
-    CONFIG_EXAMPLES_NXCON_TBCOLOR -- The color of the toolbar. Default is
-      a medium grey.
-    CONFIG_EXAMPLES_NXCON_EXTERNINIT - The driver for the graphics device on
-      this platform requires some unusual initialization.  This is the
-      for, for example, SPI LCD/OLED devices.  If this configuration is
-      selected, then the platform code must provide an LCD initialization
-      function with a prototype like:
-
-      #ifdef CONFIG_NX_LCDDRIVER
-      FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno);
-      #else
-      FAR struct fb_vtable_s *up_nxdrvinit(unsigned int devno);
-      #endif
-
-    CONFIG_EXAMPLES_NXCON_MINOR -- The NX console device minor number.
-      Default is 0 corresponding to /dev/nxcon0
-    CONFIG_EXAMPLES_NXCON_DEVNAME -- The quoated, full path to the
-      NX console device corresponding to CONFIG_EXAMPLES_NXCON_MINOR.
-      Default: "/dev/nxcon0"
-    CONFIG_EXAMPLES_NXCONSOLE_PRIO - Priority of the NxConsole task.
-      Default: SCHED_PRIORITY_DEFAULT
-    CONFIG_EXAMPLES_NXCONSOLE_STACKSIZE - Stack size allocated for the
-      NxConsole task. Default: 2048
-
-  The following configuration settings determine how to set up the NX
-  server (CONFIG_NX_MULTIUSER):
-
-    CONFIG_EXAMPLES_NXCON_STACKSIZE -- The stacksize to use when creating
-      the NX server.  Default 2048
-    CONFIG_EXAMPLES_NXCON_CLIENTPRIO -- The client priority.  Default: 100
-    CONFIG_EXAMPLES_NXCON_SERVERPRIO -- The server priority.  Default: 120
-    CONFIG_EXAMPLES_NXCON_LISTENERPRIO -- The priority of the event listener
-      thread. Default 80.
-    CONFIG_EXAMPLES_NXCON_NOTIFYSIGNO -- The signal number to use with
-      nx_eventnotify().  Default: 4
-
-examples/nxffs
-^^^^^^^^^^^^^^
-
-  This is a test of the NuttX NXFFS FLASH file system.  This is an NXFFS
-  stress test and beats on the file system very hard.  It should only
-  be used in a simulation environment!  Putting this NXFFS test on real
-  hardware will most likely destroy your FLASH.  You have been warned.
-
-examples/nxflat
-^^^^^^^^^^^^^^^
-
-  This example builds a small NXFLAT test case.  This includes several
-  test programs under examples/nxflat tests.  These tests are build using
-  the NXFLAT format and installed in a ROMFS file system.  At run time,
-  each program in the ROMFS file system is executed.  Requires CONFIG_NXFLAT.
-
-examplex/nxhello
-^^^^^^^^^^^^^^^^
-
-  A very simple graphics example that just says "Hello, World!" in the
-  center of the display.
-
-  The following configuration options can be selected:
-
-    CONFIG_EXAMPLES_NXHELLO_BUILTIN -- Build the NXHELLO example as a "built-in"
-      that can be executed from the NSH command line    
-    CONFIG_EXAMPLES_NXHELLO_VPLANE -- The plane to select from the frame-
-      buffer driver for use in the test.  Default: 0
-    CONFIG_EXAMPLES_NXHELLO_DEVNO - The LCD device to select from the LCD
-      driver for use in the test: Default: 0
-    CONFIG_EXAMPLES_NXHELLO_BGCOLOR -- The color of the background.  Default
-      depends on CONFIG_EXAMPLES_NXHELLO_BPP.
-    CONFIG_EXAMPLES_NXHELLO_FONTID - Selects the font (see font ID numbers in
-      include/nuttx/nx/nxfonts.h)
-    CONFIG_EXAMPLES_NXHELLO_FONTCOLOR -- The color of the fonts used in the
-      background window. Default depends on CONFIG_EXAMPLES_NXHELLO_BPP.
-    CONFIG_EXAMPLES_NXHELLO_BPP -- Pixels per pixel to use.  Valid options
-      include 2, 4, 8, 16, 24, and 32.  Default is 32.
-    CONFIG_EXAMPLES_NXHELLO_EXTERNINIT - The driver for the graphics device on
-      this platform requires some unusual initialization.  This is the
-      for, for example, SPI LCD/OLED devices.  If this configuration is
-      selected, then the platform code must provide an LCD initialization
-      function with a prototype like:
-
-      #ifdef CONFIG_NX_LCDDRIVER
-      FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno);
-      #else
-      FAR struct fb_vtable_s *up_nxdrvinit(unsigned int devno);
-      #endif
-
-examples/nximage
-^^^^^^^^^^^^^^^^
-
-  This is a simple example that just puts the NuttX logo image in the center
-  of the display.  This only works for RGB23 (888), RGB16 (656), RGB8 (332),
-  and 8-bit greyscale for now.
-
-    CONFIG_EXAMPLES_NXIMAGE_BUILTIN -- Build the NXIMAGE example as a "built-in"
-      that can be executed from the NSH command line    
-    CONFIG_EXAMPLES_NXIMAGE_VPLANE -- The plane to select from the frame-
-      buffer driver for use in the test.  Default: 0
-    CONFIG_EXAMPLES_NXIMAGE_DEVNO - The LCD device to select from the LCD
-      driver for use in the test: Default: 0
-    CONFIG_EXAMPLES_NXIMAGE_BPP -- Pixels per pixel to use.  Valid options
-      include 8, 16, and 24.  Default is 16.
-    CONFIG_EXAMPLES_NXIMAGE_XSCALEp5, CONFIG_EXAMPLES_NXIMAGE_XSCALE1p5,
-    CONFIG_EXAMPLES_NXIMAGE_XSCALE2p0 -- The logo image width is 160 columns.
-      One of these may be defined to rescale the image horizontally by .5, 1.5,
-      or 2.0.
-    CONFIG_EXAMPLES_NXIMAGE_YSCALEp5, CONFIG_EXAMPLES_NXIMAGE_YSCALE1p5,
-    CONFIG_EXAMPLES_NXIMAGE_YSCALE2p0 -- The logo image height is 160 rows.
-      One of these may be defined to rescale the image vertically by .5, 1.5,
-      or 2.0.
-    CONFIG_EXAMPLES_NXIMAGE_GREYSCALE -- Grey scale image.  Default: RGB.
-    CONFIG_EXAMPLES_NXIMAGE_EXTERNINIT - The driver for the graphics device on
-      this platform requires some unusual initialization.  This is the
-      for, for example, SPI LCD/OLED devices.  If this configuration is
-      selected, then the platform code must provide an LCD initialization
-      function with a prototype like:
-
-      #ifdef CONFIG_NX_LCDDRIVER
-      FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno);
-      #else
-      FAR struct fb_vtable_s *up_nxdrvinit(unsigned int devno);
-      #endif
-
-    How was that run-length encoded image produced?
-
-    a. I used GIMP output the image as a .c file.
-    b. I added som C logic to palette-ize the RGB image in the GIMP .c file
-    c. Then I add some simple run-length encoding to palette-ized image.
-
-    NOTE: As of this writing, most of the pixel depth, scaling options, and
-    combinations thereof  have not been tested.
-
-examplex/nxlines
-^^^^^^^^^^^^^^^^
-
-  A very simple graphics example that just exercised the NX line drawing
-  logic.
-
-  The following configuration options can be selected:
-
-    CONFIG_EXAMPLES_NXLINES_VPLANE -- The plane to select from the frame-
-      buffer driver for use in the test.  Default: 0
-    CONFIG_EXAMPLES_NXLINES_DEVNO - The LCD device to select from the LCD
-      driver for use in the test: Default: 0
-    CONFIG_EXAMPLES_NXLINES_BGCOLOR -- The color of the background.  Default
-      depends on CONFIG_EXAMPLES_NXLINES_BPP.
-    CONFIG_EXAMPLES_NXLINES_LINEWIDTH - Selects the width of the lines in
-      pixels (default: 16)
-    CONFIG_EXAMPLES_NXLINES_LINECOLOR -- The color of the central lines drawn
-      in the background window. Default depends on CONFIG_EXAMPLES_NXLINES_BPP
-      (there really is no meaningful default).
-    CONFIG_EXAMPLES_NXLINES_BORDERWIDTH -- The width of the circular border
-      drawn in the background window. (default: 16).
-    CONFIG_EXAMPLES_NXLINES_BORDERCOLOR -- The color of the circular border
-      drawn in the background window. Default depends on CONFIG_EXAMPLES_NXLINES_BPP
-      (there really is no meaningful default).
-    CONFIG_EXAMPLES_NXLINES_CIRCLECOLOR -- The color of the circular region
-      filled in the background window. Default depends on CONFIG_EXAMPLES_NXLINES_BPP
-      (there really is no meaningful default).
-    CONFIG_EXAMPLES_NXLINES_BORDERCOLOR -- The color of the lines drawn in the
-      background window. Default depends on CONFIG_EXAMPLES_NXLINES_BPP (there
-      really is no meaningful default).
-
-    CONFIG_EXAMPLES_NXLINES_BPP -- Pixels per pixel to use.  Valid options
-      include 2, 4, 8, 16, 24, and 32.  Default is 16.
-    CONFIG_EXAMPLES_NXLINES_EXTERNINIT - The driver for the graphics device on
-      this platform requires some unusual initialization.  This is the
-      for, for example, SPI LCD/OLED devices.  If this configuration is
-      selected, then the platform code must provide an LCD initialization
-      function with a prototype like:
-
-      #ifdef CONFIG_NX_LCDDRIVER
-      FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno);
-      #else
-      FAR struct fb_vtable_s *up_nxdrvinit(unsigned int devno);
-      #endif
-
-    CONFIG_NSH_BUILTIN_APPS - Build the NX lines examples as an NSH built-in
-      function.
-
-examples/nxtext
-^^^^^^^^^^^^^^^
-
-  This directory contains another simple test of a subset of the NX APIs
-  defined in include/nuttx/nx/nx.h.  This text focuses on text displays on
-  the dispaly background combined with pop-up displays over the text.
-  The text display will continue to update while the pop-up is visible.
-
-  NOTE:  This example will *only* work with FB drivers and with LCD
-  drivers that support reading the contents of the internal LCD memory
-  *unless* you define CONFIG_EXAMPLES_NXTEXT_NOGETRUN.  If you notice
-  garbage on the display or a failure at the point where the display
-  should scroll, it is probably because you have an LCD driver that is
-  write-only.
-  
-  The following configuration options can be selected:
-
-    CONFIG_EXAMPLES_NXTEXT_BUILTIN -- Build the NXTEXT example as a "built-in"
-      that can be executed from the NSH command line    
-    CONFIG_EXAMPLES_NXTEXT_VPLANE -- The plane to select from the frame-
-      buffer driver for use in the test.  Default: 0
-    CONFIG_EXAMPLES_NXTEXT_DEVNO - The LCD device to select from the LCD
-      driver for use in the test: Default: 0
-    CONFIG_EXAMPLES_NXTEXT_BGCOLOR -- The color of the background.  Default
-      depends on CONFIG_EXAMPLES_NXTEXT_BPP.
-    CONFIG_EXAMPLES_NXTEXT_BGFONTID - Selects the font to use in the
-      background text (see font ID numbers in include/nuttx/nx/nxfonts.h)
-    CONFIG_EXAMPLES_NXTEXT_BGFONTCOLOR -- The color of the fonts used in the
-      background window. Default depends on CONFIG_EXAMPLES_NXTEXT_BPP.
-    CONFIG_EXAMPLES_NXTEXT_PUCOLOR -- The color of the pop-up window.  Default
-      depends on CONFIG_EXAMPLES_NXTEXT_BPP.
-    CONFIG_EXAMPLES_NXTEXT_PUFONTID - Selects the font to use in the pop-up
-      windows (see font ID numbers in include/nuttx/nx/nxfonts.h)
-    CONFIG_EXAMPLES_NXTEXT_PUFONTCOLOR -- The color of the fonts used in the
-      background window. Default depends on CONFIG_EXAMPLES_NXTEXT_BPP.
-    CONFIG_EXAMPLES_NXTEXT_BPP -- Pixels per pixel to use.  Valid options
-      include 2, 4, 8, 16, 24, and 32.  Default is 32.
-    CONFIG_EXAMPLES_NXTEXT_NOGETRUN -- If your display is read-only OR if
-      reading is not reliable, then select this configuration to avoid
-      reading from the display.
-    CONFIG_EXAMPLES_NXTEXT_EXTERNINIT - The driver for the graphics device on
-      this platform requires some unusual initialization.  This is the
-      for, for example, SPI LCD/OLED devices.  If this configuration is
-      selected, then the platform code must provide an LCD initialization
-      function with a prototype like:
-
-      #ifdef CONFIG_NX_LCDDRIVER
-      FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno);
-      #else
-      FAR struct fb_vtable_s *up_nxdrvinit(unsigned int devno);
-      #endif
-
-    CONFIG_EXAMPLES_NXTEXT_BMCACHE - The maximum number of characters that
-      can be put in the background window.  Default is 128.
-    CONFIG_EXAMPLES_NXTEXT_GLCACHE - The maximum nuber of pre-rendered
-      fonts that can be retained for the background window.
-
-  This test can be performed with either the single-user version of
-  NX or with the multiple user version of NX selected with CONFIG_NX_MULTIUSER.
-  If CONFIG_NX_MULTIUSER is defined, then the following configuration
-  options also apply:
-
-    CONFIG_EXAMPLES_NXTEXT_STACKSIZE -- The stacksize to use when creating
-      the NX server.  Default 2048
-    CONFIG_EXAMPLES_NXTEXT_CLIENTPRIO -- The client priority.  Default: 100
-    CONFIG_EXAMPLES_NXTEXT_SERVERPRIO -- The server priority.  Default: 120
-    CONFIG_EXAMPLES_NXTEXT_LISTENERPRIO -- The priority of the event listener
-      thread. Default 80.
-    CONFIG_EXAMPLES_NXTEXT_NOTIFYSIGNO -- The signal number to use with
-      nx_eventnotify().  Default: 4
-
-  If CONFIG_NX_MULTIUSER is defined, then the example also expects the
-  following settings and will generate an error if they are not as expected:
-
-    CONFIG_DISABLE_MQUEUE=n
-    CONFIG_DISABLE_SIGNALS=n
-    CONFIG_DISABLE_PTHREAD=n
-    CONFIG_NX_BLOCKING=y
-
-examples/null
-^^^^^^^^^^^^^
-
-  This is the do nothing application.  It is only used for bringing
-  up new NuttX architectures in the most minimal of environments.
-
-examples/ostest
-^^^^^^^^^^^^^^^
-
-  This is the NuttX 'qualification' suite.  It attempts to exercise
-  a broad set of OS functionality.  Its coverage is not very extensive
-  as of this writing, but it is used to qualify each NuttX release.
-
-  The behavior of the ostest can be modified with the following
-  settings in the configs/<board-name>/defconfig file:
-
-  * CONFIG_EXAMPLES_OSTEST_BUILTIN
-      Build the OS test example as an NSH built-in application.
-  * CONFIG_EXAMPLES_OSTEST_LOOPS
-      Used to control the number of executions of the test.  If
-      undefined, the test executes one time.  If defined to be
-      zero, the test runs forever.
-  * CONFIG_EXAMPLES_OSTEST_STACKSIZE
-      Used to create the ostest task.  Default is 8192.
-  * CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS
-      Specifies the number of threads to create in the barrier
-      test.  The default is 8 but a smaller number may be needed on
-      systems without sufficient memory to start so many threads.
-  * CONFIG_EXAMPLES_OSTEST_RR_RANGE
-      During round-robin scheduling test two threads are created. Each of the threads
-      searches for prime numbers in the configurable range, doing that configurable
-      number of times.
-      This value specifies the end of search range and together with number of runs
-      allows to configure the length of this test - it should last at least a few
-      tens of seconds. Allowed values [1; 32767], default 10000
-  * CONFIG_EXAMPLES_OSTEST_RR_RUNS
-      During round-robin scheduling test two threads are created. Each of the threads
-      searches for prime numbers in the configurable range, doing that configurable
-      number of times.
-
-examples/pashello
-^^^^^^^^^^^^^^^^^
-
-  This is "Hello, World" implemented via the Pascal P-Code interpreter. In
-  order to use this example, you must first download and install the
-  NuttX pascal module.  After unpacking the pascal module, you can find
-  installation instructions in pascal/nuttx/README.txt.
-
-  The correct install location for the NuttX examples and build files is
-  apps/interpreters.
-
-examples/pipe
-^^^^^^^^^^^^^
-
-  A test of the mkfifo() and pipe() APIs.
-
- * CONFIG_EXAMPLES_PIPE_STACKSIZE
-     Sets the size of the stack to use when creating the child tasks.
-     The default size is 1024.
-
-examples/poll
-^^^^^^^^^^^^^
-
-  A test of the poll() and select() APIs using FIFOs and, if available,
-  stdin, and a TCP/IP socket.  In order to build this test, you must the
-  following selected in your NuttX configuration file:
-
-  CONFIG_NFILE_DESCRIPTORS          - Defined to be greater than 0
-  CONFIG_DISABLE_POLL               - NOT defined
-
-  In order to use the TCP/IP select test, you have also the following
-  additional things selected in your NuttX configuration file:
-
-  CONFIG_NET                        - Defined for general network support
-  CONFIG_NET_TCP                    - Defined for TCP/IP support
-  CONFIG_NSOCKET_DESCRIPTORS        - Defined to be greater than 0
-  CONFIG_NET_NTCP_READAHEAD_BUFFERS - Defined to be greater than zero
-
-  CONFIG_EXAMPLES_POLL_NOMAC         - (May be defined to use software assigned MAC)
-  CONFIG_EXAMPLES_POLL_IPADDR        - Target IP address
-  CONFIG_EXAMPLES_POLL_DRIPADDR      - Default router IP addess
-  CONFIG_EXAMPLES_POLL_NETMASK       - Network mask
-
-  In order to for select to work with incoming connections, you
-  must also select:
-
-  CONFIG_NET_TCPBACKLOG             - Incoming connections pend in a backlog until accept() is called.
-
-  In additional to the target device-side example, there is also
-  a host-side application in this directory.  It can be compiled under
-  Linux or Cygwin as follows:
-
-    cd examples/usbserial
-    make -f Makefile.host TOPDIR=<nuttx-directory> TARGETIP=<target-ip>
-
-  Where <target-ip> is the IP address of your target board.
-
-  This will generate a small program called 'host'.  Usage:
-
-  1. Build the examples/poll target program with TCP/IP poll support
-     and start the target.
-
-  3. Then start the host application:
-
-       ./host
-
-  The host and target will exchange are variety of small messages. Each
-  message sent from the host should cause the select to return in target.
-  The target example should read the small message and send it back to
-  the host.  The host should then receive the echo'ed message.
-
-  If networking is enabled, applications using this example will need to
-  provide an appconfig file in the configuration driver with instruction
-  to build applications like:
-
-  CONFIGURED_APPS += uiplib
-
-examples/posix_spawn
-^^^^^^^^^^^^^^^^^^^^
-
-  This is a simple test of the posix_spawn() API. The example derives from
-  examples/elf.  As a result, these tests are built using the relocatable
-  ELF format installed in a ROMFS file system.  At run time, the test program
-  in the ROMFS file system is spawned using posix_spawn().
-
-  Requires:
-
-    CONFIG_BINFMT_DISABLE=n           - Don't disable the binary loader
-    CONFIG_ELF=y                      - Enable ELF binary loader
-    CONFIG_LIBC_EXECFUNCS=y           - Enable support for posix_spawn
-    CONFIG_EXECFUNCS_SYMTAB="exports" - The name of the symbol table
-                                        created by the test.
-    CONFIG_EXECFUNCS_NSYMBOLS=10      - Value does not matter, it will be
-                                        corrected at runtime.
-    CONFIG_POSIX_SPAWN_STACKSIZE=768  - This default setting.
-
-  Test-specific configuration options:
-
-    CONFIG_EXAMPLES_POSIXSPAWN_DEVMINOR - The minor device number of the ROMFS
-      block. driver.  For example, the N in /dev/ramN. Used for registering the
-      RAM block driver that will hold the ROMFS file system containing the ELF
-      executables to be tested.  Default: 0
-
-    CONFIG_EXAMPLES_POSIXSPAWN_DEVPATH - The path to the ROMFS block driver
-      device.  This must match EXAMPLES_POSIXSPAWN_DEVMINOR. Used for
-      registering the RAM block driver that will hold the ROMFS file system
-      containing the ELF executables to be tested.  Default: "/dev/ram0"
-
-  NOTES:
-
-  1. CFLAGS should be provided in CELFFLAGS.  RAM and FLASH memory regions
-     may require long allcs.  For ARM, this might be:
-
-       CELFFLAGS = $(CFLAGS) -mlong-calls
-
-     Similarly for C++ flags which must be provided in CXXELFFLAGS.
-
-  2. Your top-level nuttx/Make.defs file must also include an approproate
-     definition, LDELFFLAGS, to generate a relocatable ELF object.  With GNU
-     LD, this should include '-r' and '-e main' (or _main on some platforms).
-
-       LDELFFLAGS = -r -e main
-
-     If you use GCC to link, you make also need to include '-nostdlib' or 
-     '-nostartfiles' and '-nodefaultlibs'.
-
-  3. This example also requires genromfs.  genromfs can be build as part of the
-     nuttx toolchain.  Or can built from the genromfs sources that can be found
-     at misc/tools/genromfs-0.5.2.tar.gz.  In any event, the PATH variable must
-     include the path to the genromfs executable.
-
-  4. ELF size:  The ELF files in this example are, be default, quite large
-     because they include a lot of "build garbage".  You can greatly reduce the
-     size of the ELF binaries are using the 'objcopy --strip-unneeded' command to
-     remove un-necessary information from the ELF files.
-
-  5. Simulator.  You cannot use this example with the the NuttX simulator on
-     Cygwin.  That is because the Cygwin GCC does not generate ELF file but
-     rather some Windows-native binary format.
-
-     If you really want to do this, you can create a NuttX x86 buildroot toolchain
-     and use that be build the ELF executables for the ROMFS file system.
-
-  6. Linker scripts.  You might also want to use a linker scripts to combine
-     sections better.  An example linker script is at nuttx/binfmt/libelf/gnu-elf.ld.
-     That example might have to be tuned for your particular linker output to
-     position additional sections correctly.  The GNU LD LDELFFLAGS then might
-     be:
-
-       LDELFFLAGS = -r -e main -T$(TOPDIR)/binfmt/libelf/gnu-elf.ld
-
-examples/pwm
-^^^^^^^^^^^^
-
-  A test of a PWM device driver. It simply enables a pulsed output for
-  a specified frequency and duty for a specified period of time.  This
-  example can ONLY be built as an NSH built-in function.
-
-  This test depends on these specific PWM/NSH configurations settings (your
-  specific PWM settings might require additional settings).
-
-    CONFIG_PWM - Enables PWM support.
-    CONFIG_EXAMPLES_PWM_COUNT - Enabled PWM pulse count support (if the
-      hardware supports it).
-    CONFIG_NSH_BUILTIN_APPS - Build the PWM test as an NSH built-in function.
-      Default: Not built!  The example can only be used as an NSH built-in
-      application
- 
-  Specific configuration options for this example include:
- 
-    CONFIG_EXAMPLES_PWM_DEVPATH - The path to the default PWM device. Default: /dev/pwm0
-    CONFIG_EXAMPLES_PWM_FREQUENCY - The initial PWM frequency.  Default: 100 Hz
-    CONFIG_EXAMPLES_PWM_DUTYPCT - The initial PWM duty as a percentage.  Default: 50%
-    CONFIG_EXAMPLES_PWM_DURATION - The initial PWM pulse train duration in seconds.
-       Used only if the current pulse count is zero (pulse count is only supported
-       if CONFIG_PWM_PULSECOUNT is defined). Default: 5 seconds
-    CONFIG_EXAMPLES_PWM_PULSECOUNT - The initial PWM pulse count.  This option is
-       only available if CONFIG_PWM_PULSECOUNT is non-zero. Default: 0 (i.e., use
-       the duration, not the count).
-
-examples/qencoder
-^^^^^^^^^^^^^^^^^
-
-  This example is a simple test of a Quadrature Encoder driver.  It simply reads
-  positional data from the encoder and prints it.,
-
-  This test depends on these specific QE/NSH configurations settings (your
-  specific PWM settings might require additional settings).
-
-    CONFIG_QENCODER - Enables quadrature encoder support (upper-half driver).
-    CONFIG_NSH_BUILTIN_APPS - Build the QE test as an NSH built-in function.
-      Default: Built as a standalone progrem.
-
-  Additional configuration options will mostly likely be required for the board-
-  specific lower-half driver.  See the README.txt file in your board configuration
-  directory.
-
-  Specific configuration options for this example include:
- 
-    CONFIG_EXAMPLES_QENCODER_DEVPATH - The path to the QE device. Default:
-      /dev/qe0
-    CONFIG_EXAMPLES_QENCODER_NSAMPLES - If CONFIG_NSH_BUILTIN_APPS
-      is defined, then the number of samples is provided on the command line
-      and this value is ignored.  Otherwise, this number of samples is
-      collected and the program terminates.  Default:  Samples are collected
-      indefinitely.
-    CONFIG_EXAMPLES_QENCODER_DELAY - This value provides the delay (in
-      milliseonds) between each sample.  If CONFIG_NSH_BUILTIN_APPS
-      is defined, then this value is the default delay if no other delay is
-      provided on the command line.  Default:  100 milliseconds
-
-examples/relays
-^^^^^^^^^^^^^^^
-
-  Requires CONFIG_ARCH_RELAYS.
-  Contributed by Darcy Gong.
-
-  NOTE: This test exercises internal relay driver interfaces.  As such, it
-  relies on internal OS interfaces that are not normally available to a
-  user-space program.  As a result, this example cannot be used if a
-  NuttX is built as a protected, supervisor kernel (CONFIG_NUTTX_KERNEL).
-
-examples/rgmp
-^^^^^^^^^^^^^
-
-  RGMP stands for RTOS and GPOS on Multi-Processor.  RGMP is a project for 
-  running GPOS and RTOS simultaneously on multi-processor platforms. You can
-  port your favorite RTOS to RGMP together with an unmodified Linux to form a
-  hybrid operating system. This makes your application able to use both RTOS
-  and GPOS features.
-
-  See http://rgmp.sourceforge.net/wiki/index.php/Main_Page for further
-
-  At present, the RGMP example folder contains only an empty rgmp_main.c file.
-
-examples/romfs
-^^^^^^^^^^^^^^
-
-  This example exercises the romfs filesystem.  Configuration options
-  include:
-
-  * CONFIG_EXAMPLES_ROMFS_RAMDEVNO
-      The minor device number to use for the ROM disk.  The default is
-      1 (meaning /dev/ram1)
-
-  * CONFIG_EXAMPLES_ROMFS_SECTORSIZE
-      The ROM disk sector size to use.  Default is 64.
-
-  * CONFIG_EXAMPLES_ROMFS_MOUNTPOINT
-      The location to mount the ROM disk.  Deafault: "/usr/local/share"
-
-examples/sendmail
-^^^^^^^^^^^^^^^^^
-
-  This examples exercises the uIP SMTP logic by sending a test message
-  to a selected recipient.  This test can also be built to execute on
-  the Cygwin/Linux host environment:
-
-    cd examples/sendmail
-    make -f Makefile.host TOPDIR=<nuttx-directory>
-
- Settings unique to this example include:
-
-    CONFIG_EXAMPLES_SENDMAIL_NOMAC     - May be defined to use software assigned MAC (optional)
-    CONFIG_EXAMPLES_SENDMAIL_IPADDR    - Target IP address (required)
-    CONFIG_EXAMPLES_SENDMAIL_DRIPADDR  - Default router IP addess (required)
-    CONFIG_EXAMPLES_SENDMAILT_NETMASK  - Network mask (required)
-    CONFIG_EXAMPLES_SENDMAIL_RECIPIENT - The recipient of the email (required)
-    CONFIG_EXAMPLES_SENDMAIL_SENDER    - Optional. Default: "nuttx-testing@example.com"
-    CONFIG_EXAMPLES_SENDMAIL_SUBJECT   - Optional. Default: "Testing SMTP from NuttX"
-    CONFIG_EXAMPLES_SENDMAIL_BODY   -    Optional. Default: "Test message sent by NuttX"
-
-  NOTE: This test has not been verified on the NuttX target environment.
-  As of this writing, unit-tested in the Cygwin/Linux host environment.
-
-  NOTE 2: This sendmail example only works for the simplest of 
-  environments.  Virus protection software on your host may have
-  to be disabled to allow you to send messages.  Only very open,
-  unprotected recipients can be used.  Most will protect themselves
-  from this test email because it looks like SPAM.
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration driver with instruction to build applications
-  like:
-
-  CONFIGURED_APPS += uiplib
-  CONFIGURED_APPS += smtp
-
-examples/serloop
-^^^^^^^^^^^^^^^^
-
-  This is a mindlessly simple loopback test on the console.  Useful
-  for testing new serial drivers.  Configuration options include:
-
-  * CONFIG_EXAMPLES_SERLOOP_BUFIO
-      Use C buffered I/O (getchar/putchar) vs. raw console I/O
-      (read/read).
-
-examples/telnetd
-^^^^^^^^^^^^^^^^
-
-  This directory contains a functional port of the tiny uIP shell.  In
-  the NuttX environment, the NuttShell (at apps/nshlib) supercedes this
-  tiny shell and also supports telnetd.
-
-    CONFIG_EXAMPLES_TELNETD_DAEMONPRIO - Priority of the Telnet daemon.
-      Default: SCHED_PRIORITY_DEFAULT
-    CONFIG_EXAMPLES_TELNETD_DAEMONSTACKSIZE - Stack size allocated for the
-      Telnet daemon. Default: 2048
-    CONFIG_EXAMPLES_TELNETD_CLIENTPRIO- Priority of the Telnet client.
-      Default: SCHED_PRIORITY_DEFAULT
-    CONFIG_EXAMPLES_TELNETD_CLIENTSTACKSIZE - Stack size allocated for the
-      Telnet client. Default: 2048
-    CONFIG_EXAMPLES_TELNETD_NOMAC - If the hardware has no MAC address of its
-      own, define this =y to provide a bogus address for testing.
-    CONFIG_EXAMPLES_TELNETD_IPADDR - The target IP address.  Default 10.0.0.2
-    CONFIG_EXAMPLES_TELNETD_DRIPADDR - The default router address. Default
-      10.0.0.1
-    CONFIG_EXAMPLES_TELNETD_NETMASK - The network mask.  Default: 255.255.255.0
- 
-  The appconfig file (apps/.config) should include:
-
-    CONFIGURED_APPS += examples/telnetd
-    CONFIGURED_APPS += netutils/uiplib
-    CONFIGURED_APPS += netutils/telnetd
-
-  Also, make sure that you have the following set in the NuttX configuration
-  file or else the performance will be very bad (because there will be only
-  one character per TCP transfer):
-  
-    CONFIG_STDIO_BUFFER_SIZE - Some value >= 64
-    CONFIG_STDIO_LINEBUFFER=y
-
-examples/thttpd
-^^^^^^^^^^^^^^^
-
-  An example that builds netutils/thttpd with some simple NXFLAT
-  CGI programs.  see configs/README.txt for most THTTPD settings.
-  In addition to those, this example accepts:
-
-    CONFIG_EXAMPLES_THTTPD_NOMAC    - (May be defined to use software assigned MAC)
-    CONFIG_EXAMPLES_THTTPD_DRIPADDR - Default router IP addess
-    CONFIG_EXAMPLES_THTTPD_NETMASK  - Network mask
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration directory with instruction to build applications
-  like:
-
-    CONFIGURED_APPS += uiplib
-    CONFIGURED_APPS += thttpd
-
-examples/tiff
-^^^^^^^^^^^^^
-
-  This is a simple unit test for the TIFF creation library at apps/graphic/tiff.
-  It is configured to work in the Linux user-mode simulation and has not been
-  tested in any other environment.  Since the example also depends on some
-  other logic to mount a file system, currently it will only work as an NSH
-  built-on, i.e., if the following is defined:
-
-    CONFIG_NSH_BUILTIN_APPS=y
-    CONFIG_EXAMPLES_TIFF_BUILTIN=y
-
-  At a miniumum, to run in an embedded environment, you will probably have to
-  change the configured paths to the TIFF files defined in the example.
-
-    CONFIG_EXAMPLES_TIFF_OUTFILE - Name of the resulting TIFF file.  Default is
-       "/tmp/result.tif"
-    CONFIG_EXAMPLES_TIFF_TMPFILE1/2 - Names of two temporaries files that
-      will be used in the file creation.  Defaults are "/tmp/tmpfile1.dat" and
-      "/tmp/tmpfile2.dat"
-
-  The following must also be defined in your apps/ configuration file:
-
-    CONFIGURED_APPS += examples/tiff
-    CONFIGURED_APPS += graphics/tiff
-
-examples/touchscreen
-^^^^^^^^^^^^^^^^^^^^
-
-  This configuration implements a simple touchscreen test at
-  apps/examples/touchscreen.  This test will create an empty X11 window
-  and will print the touchscreen output as it is received from the 
-  simulated touchscreen driver.
-
-    CONFIG_EXAMPLES_TOUCHSCREEN_BUILTIN - Build the touchscreen test as 
-      an NSH built-in function.  Default: Built as a standalone problem
-    CONFIG_EXAMPLES_TOUCHSCREEN_MINOR - The minor device number.  Minor=N
-      correspnds to touchscreen device /dev/input0.  Note this value must
-      with CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH.  Default 0.
-    CONFIG_EXAMPLES_TOUCHSCREEN_DEVPATH - The path to the touchscreen
-     device.  This must be consistent with CONFIG_EXAMPLES_TOUCHSCREEN_MINOR.
-     Default: "/dev/input0"
-    CONFIG_EXAMPLES_TOUCHSCREEN_NSAMPLES - If CONFIG_EXAMPLES_TOUCHSCREEN_BUILTIN
-     is defined, then the number of samples is provided on the command line
-     and this value is ignored.  Otherwise, this number of samples is
-     collected and the program terminates.  Default:  Samples are collected
-     indefinitely.
-
-  The following additional configurations must be set in the NuttX
-  configuration file:
-  
-    CONFIG_INPUTP=y
-    (Plus any touchscreen-specific settings).
-
-  The following must also be defined in your apps configuration file:
-
-    CONFIGURED_APPS += examples/tiff
-    CONFIGURED_APPS += graphics/tiff
-
-  The board-specific logic must provide the following interfaces that will
-  be called by the example in order to initialize and uninitialize the
-  touchscreen hardware:
-
-    int arch_tcinitialize(int minor);
-    int arch_tcuninitialize(void);
-
-examples/udp
-^^^^^^^^^^^^
-
-  This is a simple network test for verifying client- and server-
-  functionality over UDP.
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration driver with instruction to build applications
-  like:
-
-  CONFIGURED_APPS += uiplib
-
-examples/uip
-^^^^^^^^^^^^
-
-  This is a port of uIP tiny webserver example application.  Settings
-  specific to this example include:
-
-    CONFIG_EXAMPLES_UIP_NOMAC     - (May be defined to use software assigned MAC)
-    CONFIG_EXAMPLES_UIP_IPADDR    - Target IP address
-    CONFIG_EXAMPLES_UIP_DRIPADDR  - Default router IP addess
-    CONFIG_EXAMPLES_UIP_NETMASK   - Network mask
-    CONFIG_EXAMPLES_UIP_DHCPC     - Select to get IP address via DHCP
-
-  If you use DHCPC, then some special configuration network options are
-  required.  These include:
-
-    CONFIG_NET=y                 - Of course
-    CONFIG_NSOCKET_DESCRIPTORS   - And, of course, you must allocate some
-                                   socket descriptors.
-    CONFIG_NET_UDP=y             - UDP support is required for DHCP
-                                   (as well as various other UDP-related
-                                   configuration settings).
-    CONFIG_NET_BROADCAST=y       - UDP broadcast support is needed.
-    CONFIG_NET_BUFSIZE=650       - Per RFC2131 (p. 9), the DHCP client must be
-    (or larger)                    prepared to receive DHCP messages of up to
-                                   576 bytes (excluding Ethernet, IP, or UDP
-                                   headers and FCS).
-
-  Other configuration items apply also to the selected webserver net utility.
-  Additional relevant settings for the uIP webserver net utility are:
-
-    CONFIG_NETUTILS_HTTPDSTACKSIZE
-    CONFIG_NETUTILS_HTTPDFILESTATS
-    CONFIG_NETUTILS_HTTPDNETSTATS
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration driver with instruction to build applications
-  like:
-
-    CONFIGURED_APPS += uiplib
-    CONFIGURED_APPS += dhcpc
-    CONFIGURED_APPS += resolv
-    CONFIGURED_APPS += webserver
-
-  NOTE:  This example does depend on the perl script at
-  nuttx/tools/mkfsdata.pl.  You must have perl installed on your
-  development system at /usr/bin/perl.
-
-examples/usbserial
-^^^^^^^^^^^^^^^^^^
-
-  TARGET CONFIGURATION:
-
-    This is another implementation of "Hello, World" but this one uses
-    a USB serial driver.  Configuration options can be used to simply
-    the test. These options include:
-
-    CONFIG_EXAMPLES_USBSERIAL_INONLY
-       Only verify IN (device-to-host) data transfers.  Default: both
-    CONFIG_EXAMPLES_USBSERIAL_OUTONLY
-       Only verify OUT (host-to-device) data transfers.  Default: both
-    CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL
-       Send only small, single packet messages.  Default: Send large and small.
-    CONFIG_EXAMPLES_USBSERIAL_ONLYBIG
-       Send only large, multi-packet messages.  Default: Send large and small.
-
-    If CONFIG_USBDEV_TRACE is enabled (or CONFIG_DEBUG and CONFIG_DEBUG_USB), then
-    the example code will also manage the USB trace output.  The amount of trace output
-    can be controlled using:
-
-    CONFIG_EXAMPLES_USBSERIAL_TRACEINIT
-      Show initialization events
-    CONFIG_EXAMPLES_USBSERIAL_TRACECLASS
-      Show class driver events
-    CONFIG_EXAMPLES_USBSERIAL_TRACETRANSFERS
-      Show data transfer events
-    CONFIG_EXAMPLES_USBSERIAL_TRACECONTROLLER
-      Show controller events
-    CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS
-      Show interrupt-related events.
-
-    Error results are always shown in the trace output
-
-  HOST-SIDE TEST PROGRAM
-
-    In additional to the target device-side example, there is also a
-    host-side application in this directory.  This host side application
-    must be executed on a Linux host in order to perform the USBSERIAL
-    test.  The host application can be compiled under Linux (or Cygwin?)
-    as follows:
-
-      cd examples/usbserial
-      make -f Makefile.host TOPDIR=<nuttx-directory>
-
-  RUNNING THE TEST
-
-    This will generate a small program called 'host'.  Usage:
-
-    1. Build the examples/usbserial target program and start the target.
-
-    2. Wait a bit, then do enter:
-
-       dmesg
-
-       At the end of the dmesg output, you should see the serial
-       device was successfully idenfied and assigned to a tty device,
-       probably /dev/ttyUSB0 or /dev/ttyACM0 (depending on the configured
-       USB serial driver).
-
-    3. Then start the host application:
-
-         ./host [<tty-dev>]
-
-       Where:
-
-         <tty-dev> is the USB TTY device to use.   The default is
-         "/dev/ttyUSB0" (for the PL2303 emulation) or "/dev/ttyACM0" (for
-         the CDC/ACM serial device).
-
-    The host and target will exchange are variety of very small and very large
-    serial messages.
-
-examples/usbstorage
-^^^^^^^^^^^^^^^^^^^
-
-  This example registers a block device driver, then exports the block
-  the device using the USB storage class driver.  In order to use this
-  example, your board-specific logic must provide the function:
-
-    void usbmsc_archinitialize(void);
-
-  This function will be called by the example/usbstorage in order to
-  do the actual registration of the block device drivers.  For examples
-  of the implementation of usbmsc_archinitialize() see
-  configs/mcu123-lpc124x/src/up_usbmsc.c or
-  configs/stm3210e-eval/src/usbmsc.c
-
-  Configuration options:
-
-  CONFIG_EXAMPLES_USBMSC_BUILTIN
-    This example can be built as two NSH "built-in" commands if this option
-    is selected: 'msconn' will connect the USB mass storage device; 'msdis'
-    will disconnect the USB storage device.
-  CONFIG_EXAMPLES_USBMSC_NLUNS
-    Defines the number of logical units (LUNs) exported by the USB storage
-    driver.  Each LUN corresponds to one exported block driver (or partition
-    of a block driver).  May be 1, 2, or 3.  Default is 1.
-  CONFIG_EXAMPLES_USBMSC_DEVMINOR1
-    The minor device number of the block driver for the first LUN. For
-    example, N in /dev/mmcsdN.  Used for registering the block driver. Default
-    is zero.
-  CONFIG_EXAMPLES_USBMSC_DEVPATH1
-    The full path to the registered block driver.  Default is "/dev/mmcsd0"
-  CONFIG_EXAMPLES_USBMSC_DEVMINOR2 and CONFIG_EXAMPLES_USBMSC_DEVPATH2
-    Similar parameters that would have to be provided if CONFIG_EXAMPLES_USBMSC_NLUNS
-    is 2 or 3.  No defaults.
-  CONFIG_EXAMPLES_USBMSC_DEVMINOR3 and CONFIG_EXAMPLES_USBMSC_DEVPATH3
-    Similar parameters that would have to be provided if CONFIG_EXAMPLES_USBMSC_NLUNS
-    is 3.  No defaults.
-  CONFIG_EXAMPLES_USBMSC_DEBUGMM
-    Enables some debug tests to check for memory usage and memory leaks.
-
-  If CONFIG_USBDEV_TRACE is enabled (or CONFIG_DEBUG and CONFIG_DEBUG_USB), then
-  the example code will also manage the USB trace output.  The amount of trace output
-  can be controlled using:
-
-  CONFIG_EXAMPLES_USBMSC_TRACEINIT
-    Show initialization events
-  CONFIG_EXAMPLES_USBMSC_TRACECLASS
-    Show class driver events
-  CONFIG_EXAMPLES_USBMSC_TRACETRANSFERS
-    Show data transfer events
-  CONFIG_EXAMPLES_USBMSC_TRACECONTROLLER
-    Show controller events
-  CONFIG_EXAMPLES_USBMSC_TRACEINTERRUPTS
-    Show interrupt-related events.
-
-  Error results are always shown in the trace output
-
-  NOTE 1: When built as an NSH add-on command (CONFIG_EXAMPLES_USBMSC_BUILTIN=y),
-  Caution should be used to assure that the SD drive (or other storage device) is
-  not in use when the USB storage device is configured.  Specifically, the SD
-  driver should be unmounted like:
-
-  nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard # Card is mounted in NSH
-  ...
-  nsh> umount /mnd/sdcard                    # Unmount before connecting USB!!!
-  nsh> msconn                                # Connect the USB storage device
-  ...
-  nsh> msdis                                 # Disconnect USB storate device
-  nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard # Restore the mount
-
-  Failure to do this could result in corruption of the SD card format.
-
-  NOTE 2: This test exercises internal USB device driver interfaces.  As such,
-  it relies on internal OS interfaces that are not normally available to a
-  user-space program.  As a result, this example cannot be used if a
-  NuttX is built as a protected, supervisor kernel (CONFIG_NUTTX_KERNEL).
-
-examples/usbterm
-^^^^^^^^^^^^^^^^
-
-  This example implements a little USB terminal.. more of a USB "chat"
-  edited lines are received from the remote host connected via USB
-  serial and echoed out the target serial console.  Edited lines from
-  the local target serial console are received and forwarded to the
-  remote host via USB serial.
-
-  Usage:
-    - Build the example and load into the target FLASH
-    - Connect on  terminal to the target RS-232 connect and configure
-      for 115200 8N1.  For example, suppose this Tera Term on a Windows
-      box.
-    - Power up the target board
-    - Connect the USB to a Linux box.  Use the Linux dmesg command to
-      assure that the connect was successful.  The USB CDC ACM device
-      should appear as /dev/ttyACM0
-    - On the Linux box, open minicom with tty=/dev/ttyACM0.
-      Configure minicom so that (1) local characters are echoed and (2)
-      so that no CR is required.
-    - Now what you type on the target Tera Term window should echo on
-      the Linux  minicom window and, conversely, what you type on the
-      minicom winow should be echo in the target Tera Term window.
-
-  Configuration options:
-
-  CONFIG_EXAMPLES_USBTERM_BUILTIN - Build the usbterm example as an NSH
-    built-in command.  NOTE:  This is not fully functional as of this
-    writing.. It should work, but there is no mechanism in place yet
-    to exit the USB terminal program and return to NSH.
-  CONFIG_EXAMPLES_USBTERM_DEVINIT - If defined, then the example will
-    call a user provided function as part of its initialization:
-       int usbterm_devinit(void);
-    And another user provided function at termination:
-       void usbterm_devuninit(void);
-  CONFIG_EXAMPLES_USBTERM_BUFLEN - The size of the input and output
-    buffers used for receiving data. Default 256 bytes.
-
-  If CONFIG_USBDEV_TRACE is enabled (or CONFIG_DEBUG and CONFIG_DEBUG_USB, or
-  CONFIG_USBDEV_TRACE), then the example code will also manage the USB trace
-  output.  The amount of trace output can be controlled using:
-
-  CONFIG_EXAMPLES_USBTERM_TRACEINIT
-    Show initialization events
-  CONFIG_EXAMPLES_USBTERM_TRACECLASS
-    Show class driver events
-  CONFIG_EXAMPLES_USBTERM_TRACETRANSFERS
-    Show data transfer events
-  CONFIG_EXAMPLES_USBTERM_TRACECONTROLLER
-    Show controller events
-  CONFIG_EXAMPLES_USBTERM_TRACEINTERRUPTS
-    Show interrupt-related events.
-
-  NOTE:  By default, USBterm uses readline to get data from stdin.  So your
-  appconfig file must have the following build path:
-
-    CONFIGURED_APPS += system/readline
-
-  NOTE: If you use the USBterm task over a telnet NSH connection, then you
-  should set the following configuration item:
-
-    CONFIG_EXAMPLES_USBTERM_FGETS=y
-
-  By default, the USBterm client will use readline() to get characters from
-  the console.  Readline includes and command-line editor and echos
-  characters received in stdin back through stdout.  Neither of these
-  behaviors are desire-able if Telnet is used.
-
-  Error results are always shown in the trace output
-
-  Other relevant configuration options:  CONFIG_CDCACM selected by the
-  Prolifics emulation (not defined) and the CDC serial implementation
-  (when defined). CONFIG_USBDEV_TRACE_INITIALIDSET.
-
-examples/watchdog
-^^^^^^^^^^^^^^^^^
-
-  A simple test of a watchdog timer driver.  Initializes starts the watchdog
-  timer.  It pings the watchdog timer for a period of time then lets the
-  watchdog timer expire... resetting the CPU is successful.  This
-  example can ONLY be built as an NSH built-in function.
-
-  This test depends on these specific Watchdog/NSH configurations settings (your
-  specific watchdog hardware settings might require additional settings).
-
-    CONFIG_WATCHDOG- Enables watchdog timer support support.
-    CONFIG_NSH_BUILTIN_APPS - Build the watchdog time test as an NSH
-      built-in function. Default: Not built!  The example can only be used
-      as an NSH built-in application
- 
-  Specific configuration options for this example include:
- 
-    CONFIG_EXAMPLES_WATCHDOG_DEVPATH - The path to the Watchdog device.
-      Default: /dev/watchdog0
-    CONFIG_EXAMPLES_WATCHDOG_PINGTIME - Time in milliseconds that the example
-      will ping the watchdog before letting the watchdog expire. Default: 5000
-      milliseconds
-    CONFIG_EXAMPLES_WATCHDOG_PINGDELAY - Time delay between pings in
-      milliseconds. Default: 500 milliseconds.
-    CONFIG_EXAMPLES_WATCHDOG_TIMEOUT - The watchdog timeout value in
-      milliseconds before the watchdog timer expires.  Default:  2000
-      milliseconds.
-
-examples/wget
-^^^^^^^^^^^^^
-
-  A simple web client example.  It will obtain a file from a server using the HTTP
-  protocol.  Settings unique to this example include:
-
-    CONFIG_EXAMPLES_WGET_URL       - The URL of the file to get
-    CONFIG_EXAMPLES_WGET_NOMAC     - (May be defined to use software assigned MAC)
-    CONFIG_EXAMPLES_WGET_IPADDR    - Target IP address
-    CONFIG_EXAMPLES_WGET_DRIPADDR  - Default router IP addess
-    CONFIG_EXAMPLES_WGET_NETMASK   - Network mask
-
-  This example uses netutils/webclient.  Additional configuration settings apply
-  to that code as follows (but built-in defaults are probably OK):
-
-    CONFIG_WEBCLIENT_GETMIMETYPE, CONFIG_WEBCLIENT_MAXHTTPLINE,
-    CONFIG_WEBCLIENT_MAXMIMESIZE, CONFIG_WEBCLIENT_MAXHOSTNAME,
-    CONFIG_WEBCLIENT_MAXFILENAME
-
-  Of course, the example also requires other settings including CONFIG_NET and
-  CONFIG_NET_TCP.  The example also uses the uIP resolver which requires CONFIG_UDP.
-
-  WARNNG: As of this writing, wget is untested on the target platform.  At present
-  it has been tested only in the host-based configuration described in the following
-  note.  The primary difference is that the target version will rely on the also
-  untested uIP name resolver.
-
-  NOTE: For test purposes, this example can be built as a host-based wget function.
-  This can be built as follows:
-
-    cd examples/wget
-    make -f Makefile.host
-
-  Applications using this example will need to provide an appconfig
-  file in the configuration driver with instruction to build applications
-  like:
-
-    CONFIGURED_APPS += uiplib
-    CONFIGURED_APPS += resolv
-    CONFIGURED_APPS += webclient
-
-examples/wget
-^^^^^^^^^^^^^
-
-  Uses wget to get a JSON encoded file, then decodes the file.
-
-    CONFIG_EXAMPLES_WDGETJSON_MAXSIZE - Max. JSON Buffer Size
-    CONFIG_EXAMPLES_EXAMPLES_WGETJSON_URL - wget URL
-
-examples/xmlrpc
-^^^^^^^^^^^^^^^
-
-  This example exercises the "Embeddable Lightweight XML-RPC Server" which
-  is discussed at:
-
-    http://www.drdobbs.com/web-development/an-embeddable-lightweight-xml-rpc-server/184405364
-
-  Configuration options:
-
-    CONFIG_EXAMPLES_XMLRPC_BUFFERSIZE - HTTP buffer size. Default 1024
-    CONFIG_EXAMPLES_XMLRPC_DHCPC - Use DHCP Client.  Default n. Ignored
-      if CONFIG_NSH_BUILTIN_APPS is selected.
-    CONFIG_EXAMPLES_XMLRPC_NOMAC - Use Canned MAC Address. Defaul n. Ignored
-      if CONFIG_NSH_BUILTIN_APPS is selected.
-    CONFIG_EXAMPLES_XMLRPC_IPADDR - Target IP address. Default 0x0a000002.
-      Ignored if CONFIG_NSH_BUILTIN_APPS is selected.
-    CONFIG_EXAMPLES_XMLRPC_DRIPADDR - Default Router IP address (Gateway).
-      Default 0x0a000001. Ignored if CONFIG_NSH_BUILTIN_APPS is selected.
-    CONFIG_EXAMPLES_XMLRPC_NETMASK - Network Mask.  Default 0xffffff00
-      Ignored if CONFIG_NSH_BUILTIN_APPS is selected.
diff --git a/apps/examples/adc/Kconfig b/apps/examples/adc/Kconfig
deleted file mode 100644
index 85c875deb..000000000
--- a/apps/examples/adc/Kconfig
+++ /dev/null
@@ -1,37 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_ADC
-	bool "ADC example"
-	default n
-	depends on ADC
-	---help---
-		Enable the ADC example
-
-if EXAMPLES_ADC
-
-config EXAMPLES_ADC_DEVPATH
-	string "ADC device path"
-	default "/dev/adc0"
-	---help---
-		The default path to the ADC device. Default: /dev/adc0
-
-config EXAMPLES_ADC_NSAMPLES
-	int "Number of Sample Groups"
-	default 0
-	depends on !NSH_BUILTIN_APPS
-	---help---
-		If NSH_BUILTIN_APPS is defined, then the number of samples is provided
-		on the command line and this value is ignored.  Otherwise, this number
-		of samples is collected and the program terminates.  Default:  0 (samples
-		are collected indefinitely).
-
-config EXAMPLES_ADC_GROUPSIZE
-	int "Number of Samples per Group"
-	default 4
-	---help---
-		The number of samples to read at once. Default: 4
-
-endif
diff --git a/apps/examples/adc/Makefile b/apps/examples/adc/Makefile
deleted file mode 100644
index 3cbe843f6..000000000
--- a/apps/examples/adc/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
-############################################################################
-# apps/examples/adc/Makefile
-#
-#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# NuttX NX Graphics Example.
-
-ASRCS		=
-CSRCS		= adc_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Touchscreen built-in application info
-
-APPNAME		= adc
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: context clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/adc/adc.h b/apps/examples/adc/adc.h
deleted file mode 100644
index 2d8af87e1..000000000
--- a/apps/examples/adc/adc.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/****************************************************************************
- * examples/examples/adc/adc.h
- *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __APPS_EXAMPLES_ADC_ADC_H
-#define __APPS_EXAMPLES_ADC_ADC_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-/* Configuration ************************************************************/
-/* CONFIG_NSH_BUILTIN_APPS - Build the ADC test as an NSH built-in function.
- *  Default: Built as a standalone problem
- * CONFIG_EXAMPLES_ADC_DEVPATH - The default path to the ADC device. Default: /dev/adc0
- * CONFIG_EXAMPLES_ADC_NSAMPLES - If CONFIG_NSH_BUILTIN_APPS
- *   is defined, then the number of samples is provided on the command line
- *   and this value is ignored.  Otherwise, this number of samples is
- *   collected and the program terminates.  Default:  Samples are collected
- *   indefinitely.
- * CONFIG_EXAMPLES_ADC_GROUPSIZE - The number of samples to read at once.
- *   Default: 4
- */
-
-#ifndef CONFIG_ADC
-#  error "ADC device support is not enabled (CONFIG_ADC)"
-#endif
-
-#ifndef CONFIG_EXAMPLES_ADC_DEVPATH
-#  define CONFIG_EXAMPLES_ADC_DEVPATH "/dev/adc0"
-#endif
-
-#ifndef CONFIG_EXAMPLES_ADC_GROUPSIZE
-#  define CONFIG_EXAMPLES_ADC_GROUPSIZE 4
-#endif
-
-/* Debug ********************************************************************/
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-#  ifdef CONFIG_DEBUG
-#    define message(...) syslog(__VA_ARGS__)
-#    define msgflush()
-#  else
-#    define message(...) printf(__VA_ARGS__)
-#    define msgflush() fflush(stdout)
-#  endif
-#else
-#  ifdef CONFIG_DEBUG
-#    define message syslog
-#    define msgflush()
-#  else
-#    define message printf
-#    define msgflush() fflush(stdout)
-#  endif
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-struct adc_state_s
-{
-  bool      initialized;
-  FAR char *devpath;
-#if defined(CONFIG_NSH_BUILTIN_APPS) || defined(CONFIG_EXAMPLES_ADC_NSAMPLES)
-  int       count;
-#endif
-};
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Name: adc_devinit()
- *
- * Description:
- *   Perform architecuture-specific initialization of the ADC hardware.  This
- *   interface must be provided by all configurations using apps/examples/adc
- *
- ****************************************************************************/
-
-int adc_devinit(void);
-
-#endif /* __APPS_EXAMPLES_ADC_ADC_H */
diff --git a/apps/examples/adc/adc_main.c b/apps/examples/adc/adc_main.c
deleted file mode 100644
index 553658fee..000000000
--- a/apps/examples/adc/adc_main.c
+++ /dev/null
@@ -1,372 +0,0 @@
-/****************************************************************************
- * examples/adc/adc_main.c
- *
- *   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/analog/adc.h>
-
-#include "adc.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/* Use CONFIG_EXAMPLES_ADC_NSAMPLES == 0 to mean to collect samples
- * indefinitely.
- */
-
-#ifndef CONFIG_EXAMPLES_ADC_NSAMPLES
-#  define CONFIG_EXAMPLES_ADC_NSAMPLES 0
-#endif
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static struct adc_state_s g_adcstate;
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: adc_devpath
- ****************************************************************************/
-
-static void adc_devpath(FAR struct adc_state_s *adc, FAR const char *devpath)
-{
-  /* Get rid of any old device path */
-
-  if (adc->devpath)
-    {
-      free(adc->devpath);
-    }
-
-  /* Then set-up the new device path by copying the string */
-
-  adc->devpath = strdup(devpath);
-}
-
-/****************************************************************************
- * Name: adc_help
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static void adc_help(FAR struct adc_state_s *adc)
-{
-  message("Usage: adc [OPTIONS]\n");
-  message("\nArguments are \"sticky\".  For example, once the ADC device is\n");
-  message("specified, that device will be re-used until it is changed.\n");
-  message("\n\"sticky\" OPTIONS include:\n");
-  message("  [-p devpath] selects the ADC device.  "
-         "Default: %s Current: %s\n",
-         CONFIG_EXAMPLES_ADC_DEVPATH, g_adcstate.devpath ? g_adcstate.devpath : "NONE");
-  message("  [-n count] selects the samples to collect.  "
-         "Default: 1 Current: %d\n", adc->count);
-  message("  [-h] shows this message and exits\n");
-}
-#endif
-
-/****************************************************************************
- * Name: arg_string
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static int arg_string(FAR char **arg, FAR char **value)
-{
-  FAR char *ptr = *arg;
-
-  if (ptr[2] == '\0')
-    {
-      *value = arg[1];
-      return 2;
-    }
-  else
-    {
-      *value = &ptr[2];
-      return 1;
-    }
-}
-#endif
-
-/****************************************************************************
- * Name: arg_decimal
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static int arg_decimal(FAR char **arg, FAR long *value)
-{
-  FAR char *string;
-  int ret;
-
-  ret = arg_string(arg, &string);
-  *value = strtol(string, NULL, 10);
-  return ret;
-}
-#endif
-
-/****************************************************************************
- * Name: parse_args
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static void parse_args(FAR struct adc_state_s *adc, int argc, FAR char **argv)
-{
-  FAR char *ptr;
-  FAR char *str;
-  long value;
-  int index;
-  int nargs;
- 
-  for (index = 1; index < argc; )
-    {
-      ptr = argv[index];
-      if (ptr[0] != '-')
-        {
-          message("Invalid options format: %s\n", ptr);
-          exit(0);
-        }
-
-      switch (ptr[1])
-        {
-          case 'n':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 0)
-              {
-                message("Count must be non-negative: %ld\n", value);
-                exit(1);
-              }
-
-            adc->count = (uint32_t)value;
-            index += nargs;
-            break;
-
-          case 'p':
-            nargs = arg_string(&argv[index], &str);
-            adc_devpath(adc, str);
-            index += nargs;
-            break;
-
-          case 'h':
-            adc_help(adc);
-            exit(0);
-        
-          default:
-            message("Unsupported option: %s\n", ptr);
-            adc_help(adc);
-            exit(1);
-        }
-    }
-}
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: adc_main
- ****************************************************************************/
-
-int adc_main(int argc, char *argv[])
-{
-  struct adc_msg_s sample[CONFIG_EXAMPLES_ADC_GROUPSIZE];
-  size_t readsize;
-  ssize_t nbytes;
-  int fd;
-  int errval = 0;
-  int ret;
-  int i;
-
-  /* Check if we have initialized */
-
-  if (!g_adcstate.initialized)
-    {
-      /* Initialization of the ADC hardware is performed by logic external to
-       * this test.
-       */
-
-      message("adc_main: Initializing external ADC device\n");
-      ret = adc_devinit();
-      if (ret != OK)
-        {
-          message("adc_main: adc_devinit failed: %d\n", ret);
-          errval = 1;
-          goto errout;
-        }
-
-      /* Set the default values */
-
-      adc_devpath(&g_adcstate, CONFIG_EXAMPLES_ADC_DEVPATH);
-
-#if CONFIG_EXAMPLES_ADC_NSAMPLES > 0
-      g_adcstate.count = CONFIG_EXAMPLES_ADC_NSAMPLES;
-#else
-      g_adcstate.count = 1;
-#endif
-      g_adcstate.initialized = true;
-    }
-
-  /* Parse the command line */
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-  parse_args(&g_adcstate, argc, argv);
-#endif
-
-  /* If this example is configured as an NX add-on, then limit the number of
-   * samples that we collect before returning.  Otherwise, we never return
-   */
-
-#if defined(CONFIG_NSH_BUILTIN_APPS) || CONFIG_EXAMPLES_ADC_NSAMPLES > 0
-  message("adc_main: g_adcstate.count: %d\n", g_adcstate.count);
-#endif
-
-  /* Open the ADC device for reading */
-
-  message("adc_main: Hardware initialized. Opening the ADC device: %s\n",
-          g_adcstate.devpath);
-
-  fd = open(g_adcstate.devpath, O_RDONLY);
-  if (fd < 0)
-    {
-      message("adc_main: open %s failed: %d\n", g_adcstate.devpath, errno);
-      errval = 2;
-      goto errout;
-    }
-
-  /* Now loop the appropriate number of times, displaying the collected
-   * ADC samples.
-   */
-
-#if defined(CONFIG_NSH_BUILTIN_APPS)
-  for (; g_adcstate.count > 0; g_adcstate.count--)
-#elif CONFIG_EXAMPLES_ADC_NSAMPLES > 0
-  for (g_adcstate.count = 0; g_adcstate.count < CONFIG_EXAMPLES_ADC_NSAMPLES; g_adcstate.count++)
-#else
-  for (;;)
-#endif
-  {
-    /* Flush any output before the loop entered or from the previous pass
-     * through the loop.
-     */
-
-    msgflush();
-
-    /* Read CONFIG_EXAMPLES_ADC_GROUPSIZE samples */
-
-    readsize = CONFIG_EXAMPLES_ADC_GROUPSIZE * sizeof(struct adc_msg_s);
-    nbytes = read(fd, sample, readsize);
-
-    /* Handle unexpected return values */
-
-    if (nbytes < 0)
-      {
-        errval = errno;
-        if (errval != EINTR)
-          {
-            message("adc_main: read %s failed: %d\n",
-                    g_adcstate.devpath, errval);
-            errval = 3;
-            goto errout_with_dev;
-          }
-
-        message("adc_main: Interrupted read...\n");
-      }
-    else if (nbytes == 0)
-      {
-        message("adc_main: No data read, Ignoring\n");
-      }
-
-    /* Print the sample data on successful return */
-
-    else
-      {
-        int nsamples = nbytes / sizeof(struct adc_msg_s);
-        if (nsamples * sizeof(struct adc_msg_s) != nbytes)
-          {
-            message("adc_main: read size=%d is not a multiple of sample size=%d, Ignoring\n",
-                    nbytes, sizeof(struct adc_msg_s));
-          }
-        else
-          {
-            message("Sample:\n");
-            for (i = 0; i < nsamples ; i++)
-              {
-                message("%d: channel: %d value: %d\n",
-                         i, sample[i].am_channel, sample[i].am_data);
-              }
-          }
-      }
-  }
-
-  close(fd);
-  return OK;
-
-  /* Error exits */
-
-errout_with_dev:
-  close(fd);
-
-errout:
-  message("Terminating!\n");
-  msgflush();
-  return errval;
-}
diff --git a/apps/examples/buttons/Kconfig b/apps/examples/buttons/Kconfig
deleted file mode 100644
index d145867fc..000000000
--- a/apps/examples/buttons/Kconfig
+++ /dev/null
@@ -1,63 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_BUTTONS
-	bool "Buttons example"
-	default n
-	---help---
-		Enable the buttons example.  May require ARCH_BUTTONS on some boards.
-
-if EXAMPLES_BUTTONS
-config EXAMPLES_BUTTONS_MIN
-int "Lowest Button Number"
-default 0
-
-config EXAMPLES_BUTTONS_MAX
-int "Highest Button Number"
-default 7
-
-if ARCH_IRQBUTTONS 
-config EXAMPLES_IRQBUTTONS_MIN
-int "Lowest Interrupting Button Number"
-default 0
-
-config EXAMPLES_IRQBUTTONS_MAX
-int "Highest Interrupting Button Number"
-default 7
-
-config EXAMPLES_BUTTONS_NAME0
-string "Button 0 Name"
-default "Button 0"
-
-config EXAMPLES_BUTTONS_NAME1
-string "Button 1 Name"
-default "Button 1"
-
-config EXAMPLES_BUTTONS_NAME2
-string "Button 2 Name"
-default "Button 2"
-
-config EXAMPLES_BUTTONS_NAME3
-string "Button 3 Name"
-default "Button 3"
-
-config EXAMPLES_BUTTONS_NAME4
-string "Button 4 Name"
-default "Button 4"
-
-config EXAMPLES_BUTTONS_NAME5
-string "Button 5 Name"
-default "Button 5"
-
-config EXAMPLES_BUTTONS_NAME6
-string "Button 6 Name"
-default "Button 6"
-
-config EXAMPLES_BUTTONS_NAME7
-string "Button 7 Name"
-default "Button 7"
-
-endif
-endif
diff --git a/apps/examples/buttons/Makefile b/apps/examples/buttons/Makefile
deleted file mode 100644
index a2e8679d4..000000000
--- a/apps/examples/buttons/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
-############################################################################
-# apps/examples/buttons/Makefile
-#
-#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# Hello, World! Example
-
-ASRCS		=
-CSRCS		= buttons_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Buttons built-in application info
-
-APPNAME		= buttons
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: context clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/buttons/buttons_main.c b/apps/examples/buttons/buttons_main.c
deleted file mode 100644
index 655080def..000000000
--- a/apps/examples/buttons/buttons_main.c
+++ /dev/null
@@ -1,499 +0,0 @@
-/****************************************************************************
- * examples/buttons/buttons_main.c
- *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * NOTE: This test exercises internal button driver interfaces.  As such, it
- * it relies on internal OS interfaces that are not normally available to a
- * user-space program.  As a result, this example cannot be used if a
- * NuttX is built as a protected, supervisor kernel (CONFIG_NUTTX_KERNEL).
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <nuttx/arch.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <debug.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-/* Configuration ************************************************************/
-
-#ifndef CONFIG_ARCH_BUTTONS
-#  error "CONFIG_ARCH_BUTTONS is not defined in the configuration"
-#endif
-
-#ifndef CONFIG_EXAMPLES_BUTTONS_NAME0
-#  define CONFIG_EXAMPLES_BUTTONS_NAME0 "BUTTON0"
-#endif
-#ifndef CONFIG_EXAMPLES_BUTTONS_NAME1
-#  define CONFIG_EXAMPLES_BUTTONS_NAME1 "BUTTON1"
-#endif
-#ifndef CONFIG_EXAMPLES_BUTTONS_NAME2
-#  define CONFIG_EXAMPLES_BUTTONS_NAME2 "BUTTON2"
-#endif
-#ifndef CONFIG_EXAMPLES_BUTTONS_NAME3
-#  define CONFIG_EXAMPLES_BUTTONS_NAME3 "BUTTON3"
-#endif
-#ifndef CONFIG_EXAMPLES_BUTTONS_NAME4
-#  define CONFIG_EXAMPLES_BUTTONS_NAME4 "BUTTON4"
-#endif
-#ifndef CONFIG_EXAMPLES_BUTTONS_NAME5
-#  define CONFIG_EXAMPLES_BUTTONS_NAME5 "BUTTON5"
-#endif
-#ifndef CONFIG_EXAMPLES_BUTTONS_NAME6
-#  define CONFIG_EXAMPLES_BUTTONS_NAME6 "BUTTON6"
-#endif
-#ifndef CONFIG_EXAMPLES_BUTTONS_NAME7
-#  define CONFIG_EXAMPLES_BUTTONS_NAME7 "BUTTON7"
-#endif
-
-#define BUTTON_MIN 0
-#define BUTTON_MAX 7
-
-#ifndef CONFIG_EXAMPLES_BUTTONS_MIN
-#  define CONFIG_EXAMPLES_BUTTONS_MIN BUTTON_MIN
-#endif
-#ifndef CONFIG_EXAMPLES_BUTTONS_MAX
-#  define CONFIG_EXAMPLES_BUTTONS_MAX BUTTON_MAX
-#endif
-
-#if CONFIG_EXAMPLES_BUTTONS_MIN > CONFIG_EXAMPLES_BUTTONS_MAX
-#  error "CONFIG_EXAMPLES_BUTTONS_MIN > CONFIG_EXAMPLES_BUTTONS_MAX"
-#endif
-#if CONFIG_EXAMPLES_BUTTONS_MAX > 7
-#  error "CONFIG_EXAMPLES_BUTTONS_MAX > 7"
-#endif
-
-#ifndef CONFIG_EXAMPLES_IRQBUTTONS_MIN
-#  define CONFIG_EXAMPLES_IRQBUTTONS_MIN CONFIG_EXAMPLES_BUTTONS_MIN
-#endif
-#ifndef CONFIG_EXAMPLES_IRQBUTTONS_MAX
-#  define CONFIG_EXAMPLES_IRQBUTTONS_MAX CONFIG_EXAMPLES_BUTTONS_MAX
-#endif
-
-#if CONFIG_EXAMPLES_IRQBUTTONS_MIN > CONFIG_EXAMPLES_IRQBUTTONS_MAX
-#  error "CONFIG_EXAMPLES_IRQBUTTONS_MIN > CONFIG_EXAMPLES_IRQBUTTONS_MAX"
-#endif
-#if CONFIG_EXAMPLES_IRQBUTTONS_MAX > 7
-#  error "CONFIG_EXAMPLES_IRQBUTTONS_MAX > 7"
-#endif
-
-#ifndef MIN
-#  define MIN(a,b) (a < b ? a : b)
-#endif
-#ifndef MAX
-#  define MAX(a,b) (a > b ? a : b)
-#endif
-
-#define MIN_BUTTON MIN(CONFIG_EXAMPLES_BUTTONS_MIN, CONFIG_EXAMPLES_IRQBUTTONS_MIN)
-#define MAX_BUTTON MAX(CONFIG_EXAMPLES_BUTTONS_MAX, CONFIG_EXAMPLES_IRQBUTTONS_MAX)
-
-#define NUM_BUTTONS     (MAX_BUTTON - MIN_BUTTON + 1)
-#define BUTTON_INDEX(b) ((b)-MIN_BUTTON)
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-struct button_info_s
-{
-  FAR const char *name; /* Name for the button */
-#ifdef CONFIG_ARCH_IRQBUTTONS
-  xcpt_t handler;       /* Button interrupt handler */
-#endif
-};
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-static void show_buttons(uint8_t oldset, uint8_t newset);
-
-#ifdef CONFIG_ARCH_IRQBUTTONS
-static void button_handler(int id, int irq);
-
-#if MIN_BUTTON < 1
-static int button0_handler(int irq, FAR void *context);
-#endif
-#if MIN_BUTTON < 2 && MAX_BUTTON > 0
-static int button1_handler(int irq, FAR void *context);
-#endif
-#if MIN_BUTTON < 3 && MAX_BUTTON > 1
-static int button2_handler(int irq, FAR void *context);
-#endif
-#if MIN_BUTTON < 4 && MAX_BUTTON > 2
-static int button3_handler(int irq, FAR void *context);
-#endif
-#if MIN_BUTTON < 5 && MAX_BUTTON > 3
-static int button4_handler(int irq, FAR void *context);
-#endif
-#if MIN_BUTTON < 6 && MAX_BUTTON > 4
-static int button5_handler(int irq, FAR void *context);
-#endif
-#if MIN_BUTTON < 7 && MAX_BUTTON > 5
-static int button6_handler(int irq, FAR void *context);
-#endif
-#if MAX_BUTTON > 6
-static int button7_handler(int irq, FAR void *context);
-#endif
-#endif /* CONFIG_ARCH_IRQBUTTONS */
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
- /* Button Names */
-
-static const struct button_info_s g_buttoninfo[NUM_BUTTONS] =
-{
-#if MIN_BUTTON < 1
-  {
-    CONFIG_EXAMPLES_BUTTONS_NAME0,
-#ifdef CONFIG_ARCH_IRQBUTTONS
-    button0_handler
-#endif
-  },
-#endif
-#if MIN_BUTTON < 2 && MAX_BUTTON > 0
-  {
-    CONFIG_EXAMPLES_BUTTONS_NAME1,
-#ifdef CONFIG_ARCH_IRQBUTTONS
-    button1_handler
-#endif
-  },
-#endif
-#if MIN_BUTTON < 3 && MAX_BUTTON > 1
-  {
-    CONFIG_EXAMPLES_BUTTONS_NAME2,
-#ifdef CONFIG_ARCH_IRQBUTTONS
-    button2_handler
-#endif
-  },
-#endif
-#if MIN_BUTTON < 4 && MAX_BUTTON > 2
-  {
-    CONFIG_EXAMPLES_BUTTONS_NAME3,
-#ifdef CONFIG_ARCH_IRQBUTTONS
-    button3_handler
-#endif
-  },
-#endif
-#if MIN_BUTTON < 5 && MAX_BUTTON > 3
-  {
-    CONFIG_EXAMPLES_BUTTONS_NAME4,
-#ifdef CONFIG_ARCH_IRQBUTTONS
-    button4_handler
-#endif
-  },
-#endif
-#if MIN_BUTTON < 6 && MAX_BUTTON > 4
-  {
-    CONFIG_EXAMPLES_BUTTONS_NAME5,
-#ifdef CONFIG_ARCH_IRQBUTTONS
-    button5_handler
-#endif
-  },
-#endif
-#if MIN_BUTTON < 7 && MAX_BUTTON > 5
-  {
-    CONFIG_EXAMPLES_BUTTONS_NAME6,
-#ifdef CONFIG_ARCH_IRQBUTTONS
-    button6_handler
-#endif
-  },
-#endif
-#if MAX_BUTTON > 6
-  {
-    CONFIG_EXAMPLES_BUTTONS_NAME7,
-#ifdef CONFIG_ARCH_IRQBUTTONS
-    button7_handler
-#endif
-  }
-#endif
-};
-
-/* Last sampled button set */
-
-static uint8_t g_oldset;
-
-/* Used to limit the number of button presses */
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static volatile long g_nbuttons;
-#endif
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-static void show_buttons(uint8_t oldset, uint8_t newset)
-{
-  uint8_t chgset = oldset ^ newset;
-  int i;
-
-  /* Update the count of button presses shown */
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-  if ((chgset & newset) != 0)
-    {
-      g_nbuttons++;
-    }
-#endif
-
-  /* Show each button state change */
-
-  for (i = MIN_BUTTON; i <= MAX_BUTTON; i++)
-    {
-      uint8_t mask = (1 << i);
-      if ((chgset & mask) != 0)
-        {
-          FAR const char *state;
-
-          /* Get the button state */
-
-          if ((newset & mask) != 0)
-            {
-              state = "depressed";
-            }
-          else
-            {
-              state = "released";            
-            }
-
-          /* Use lowsyslog() because we make be executing from an
-           * interrupt handler.
-           */
-
-          lowsyslog("  %s %s\n", g_buttoninfo[BUTTON_INDEX(i)].name, state);
-        }
-    }
-}
-
-#ifdef CONFIG_ARCH_IRQBUTTONS
-static void button_handler(int id, int irq)
-{
-  uint8_t newset = up_buttons();
-
-  lowsyslog("IRQ:%d Button %d:%s SET:%02x:\n",
-            irq, id, g_buttoninfo[BUTTON_INDEX(id)].name, newset);
-  show_buttons(g_oldset, newset);
-  g_oldset = newset;
-}
-
-#if MIN_BUTTON < 1
-static int button0_handler(int irq, FAR void *context)
-{
-  button_handler(0, irq);
-  return OK;
-}
-#endif
-
-#if MIN_BUTTON < 2 && MAX_BUTTON > 0
-static int button1_handler(int irq, FAR void *context)
-{
-  button_handler(1, irq);
-  return OK;
-}
-#endif
-
-#if MIN_BUTTON < 3 && MAX_BUTTON > 1
-static int button2_handler(int irq, FAR void *context)
-{
-  button_handler(2, irq);
-  return OK;
-}
-#endif
-
-#if MIN_BUTTON < 4 && MAX_BUTTON > 2
-static int button3_handler(int irq, FAR void *context)
-{
-  button_handler(3, irq);
-  return OK;
-}
-#endif
-
-#if MIN_BUTTON < 5 && MAX_BUTTON > 3
-static int button4_handler(int irq, FAR void *context)
-{
-  button_handler(4, irq);
-  return OK;
-}
-#endif
-
-#if MIN_BUTTON < 6 && MAX_BUTTON > 4
-static int button5_handler(int irq, FAR void *context)
-{
-  button_handler(5, irq);
-  return OK;
-}
-#endif
-
-#if MIN_BUTTON < 7 && MAX_BUTTON > 5
-static int button6_handler(int irq, FAR void *context)
-{
-  button_handler(6, irq);
-  return OK;
-}
-#endif
-
-#if MAX_BUTTON > 6
-static int button7_handler(int irq, FAR void *context)
-{
-  button_handler(7, irq);
-  return OK;
-}
-#endif
-#endif /* CONFIG_ARCH_IRQBUTTONS */
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * buttons_main
- ****************************************************************************/
-
-int buttons_main(int argc, char *argv[])
-{
-  uint8_t newset;
-  irqstate_t flags;
-  int i;
-
-  /* If this example is configured as an NX add-on, then limit the number of
-   * samples that we collect before returning.  Otherwise, we never return
-   */
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-  long maxbuttons = 1;
-  g_nbuttons      = 0;
-  if (argc > 1)
-    {
-      maxbuttons = strtol(argv[1], NULL, 10);
-    }
-  lowsyslog("maxbuttons: %d\n", maxbuttons);
-#endif
-
-  /* Initialize the button GPIOs */
-
-  up_buttoninit();
-
-  /* Register to recieve button interrupts */
-
-#ifdef CONFIG_ARCH_IRQBUTTONS
-  for (i = CONFIG_EXAMPLES_IRQBUTTONS_MIN; i <= CONFIG_EXAMPLES_IRQBUTTONS_MAX; i++)
-    {
-      xcpt_t oldhandler = up_irqbutton(i, g_buttoninfo[BUTTON_INDEX(i)].handler);
-
-      /* Use lowsyslog() for compatibility with interrrupt handler output. */
-
-      lowsyslog("Attached handler at %p to button %d [%s], oldhandler:%p\n",
-                g_buttoninfo[BUTTON_INDEX(i)].handler, i,
-                g_buttoninfo[BUTTON_INDEX(i)].name, oldhandler);
-
-      /* Some hardware multiplexes different GPIO button sources to the same
-       * physical interrupt.  If we register multiple such multiplexed button
-       * interrupts, then the second registration will overwrite the first.  In
-       * this case, the first button interrupts may be aliased to the second
-       * interrupt handler (or worse, could be lost).
-       */
-
-      if (oldhandler != NULL)
-        {
-          lowsyslog("WARNING: oldhandler:%p is not NULL!  "
-                    "Button events may be lost or aliased!\n",
-                    oldhandler);
-        }
-    }
-#endif
-
-  /* Poll button state */
-
-  g_oldset = up_buttons();
-#ifdef CONFIG_NSH_BUILTIN_APPS
-  while (g_nbuttons < maxbuttons)
-#else
-  for (;;)
-#endif
-    {
-      /* Get the set of pressed and release buttons. */
-
-      newset = up_buttons();
-
-      /* Any changes from the last sample? */
-
-      if (newset != g_oldset)
-        {
-          /* Disable interrupts so that output here will not collide with
-           * output from an interrupt handler.
-           */
-
-          flags = irqsave();
-
-          /* Use lowsyslog() for compatibility with interrrupt handler
-           * output.
-           */
-
-          lowsyslog("POLL SET:%02x:\n", newset);
-          show_buttons(g_oldset, newset);
-          g_oldset = newset;
-          irqrestore(flags);
-        }
-
-      /* Sleep a little... but not long.  This will determine how fast we
-       * poll for button changes.
-       */
-
-      usleep(150000); /* 150 Milliseconds */
-    }
-
-  /* Un-register button handlers */
-
-#if defined(CONFIG_ARCH_IRQBUTTONS) && defined(CONFIG_NSH_BUILTIN_APPS)
-  for (i = CONFIG_EXAMPLES_IRQBUTTONS_MIN; i <= CONFIG_EXAMPLES_IRQBUTTONS_MAX; i++)
-    {
-      (void)up_irqbutton(i, NULL);
-    }
-#endif
-
-  return 0;
-}
-
diff --git a/apps/examples/can/Kconfig b/apps/examples/can/Kconfig
deleted file mode 100644
index 2b4504d68..000000000
--- a/apps/examples/can/Kconfig
+++ /dev/null
@@ -1,14 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_CAN
-	bool "CAN example"
-	default n
-	---help---
-		Enable the CAN example
-
-if EXAMPLES_CAN
-endif
-
diff --git a/apps/examples/can/Makefile b/apps/examples/can/Makefile
deleted file mode 100644
index 548c6702c..000000000
--- a/apps/examples/can/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
-############################################################################
-# apps/examples/can/Makefile
-#
-#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# NuttX NX Graphics Example.
-
-ASRCS		=
-CSRCS		= can_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Touchscreen built-in application info
-
-APPNAME		= can
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: context clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/can/can.h b/apps/examples/can/can.h
deleted file mode 100644
index d9f9236f7..000000000
--- a/apps/examples/can/can.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/****************************************************************************
- * examples/examples/can/can.h
- *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __APPS_EXAMPLES_CAN_CAN_H
-#define __APPS_EXAMPLES_CAN_CAN_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-/* Configuration ************************************************************/
-/* This test depends on these specific CAN configurations settings (your
- * specific CAN settings might require additional settings).
- *
- * CONFIG_CAN - Enables CAN support.
- * CONFIG_CAN_LOOPBACK - A CAN driver may or may not support a loopback
- *   mode for testing. The STM32 CAN driver does support loopback mode.
- *
- * Specific configuration options for this example include:
- *
- * CONFIG_NSH_BUILTIN_APPS - Build the CAN test as an NSH built-in function.
- *   Default: Built as a standalone problem
- * CONFIG_CAN_LOOPBACK
- * CONFIG_EXAMPLES_CAN_DEVPATH - The path to the CAN device. Default: /dev/can0
- * CONFIG_EXAMPLES_CAN_NMSGS - If CONFIG_NSH_BUILTIN_APPS
- *   is defined, then the number of loops is provided on the command line
- *   and this value is ignored.  Otherwise, this number of CAN message is
- *   collected and the program terminates.  Default:  If built as an NSH
- *   built-in, the default is 32.  Otherwise messages are sent and received
- *   indefinitely.
- * CONFIG_EXAMPLES_CAN_READONLY - Only receive messages
- * CONFIG_EXAMPLES_CAN_WRITEONLY - Only send messages
- */
-
-#ifndef CONFIG_CAN
-#  error "CAN device support is not enabled (CONFIG_CAN)"
-#endif
-
-#ifndef CONFIG_CAN_LOOPBACK
-#  warning "CAN loopback is not enabled (CONFIG_CAN_LOOPBACK)"
-#endif
-
-#ifndef CONFIG_EXAMPLES_CAN_DEVPATH
-#  define CONFIG_EXAMPLES_CAN_DEVPATH "/dev/can0"
-#endif
-
-#if defined(CONFIG_NSH_BUILTIN_APPS) && !defined(CONFIG_EXAMPLES_CAN_NMSGS)
-#  define CONFIG_EXAMPLES_CAN_NMSGS 32
-#endif
-
-/* Debug ********************************************************************/
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-#  ifdef CONFIG_DEBUG
-#    define message(...) syslog(__VA_ARGS__)
-#    define msgflush()
-#  else
-#    define message(...) printf(__VA_ARGS__)
-#    define msgflush() fflush(stdout)
-#  endif
-#else
-#  ifdef CONFIG_DEBUG
-#    define message syslog
-#    define msgflush()
-#  else
-#    define message printf
-#    define msgflush() fflush(stdout)
-#  endif
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Name: can_devinit()
- *
- * Description:
- *   Perform architecuture-specific initialization of the CAN hardware.  This
- *   interface must be provided by all configurations using apps/examples/can
- *
- ****************************************************************************/
-
-int can_devinit(void);
-
-#endif /* __APPS_EXAMPLES_CAN_CAN_H */
diff --git a/apps/examples/can/can_main.c b/apps/examples/can/can_main.c
deleted file mode 100644
index 482d3f438..000000000
--- a/apps/examples/can/can_main.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/****************************************************************************
- * examples/can/can_main.c
- *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/can.h>
-
-#include "can.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#if defined(CONFIG_EXAMPLES_CAN_READONLY)
-#  undef CONFIG_EXAMPLES_CAN_WRITEONLY
-#  undef CONFIG_EXAMPLES_CAN_READWRITE
-#  define CAN_OFLAGS O_RDONLY
-#elif defined(CONFIG_EXAMPLES_CAN_WRITEONLY)
-#  undef CONFIG_EXAMPLES_CAN_READWRITE
-#  define CAN_OFLAGS O_WRONLY
-#else
-#  undef CONFIG_EXAMPLES_CAN_READWRITE
-#  define CONFIG_EXAMPLES_CAN_READWRITE 1
-#  define CAN_OFLAGS O_RDWR
-#endif
-
-#ifdef CONFIG_CAN_EXTID
-#  define MAX_ID (1 << 29)
-#else
-#  define MAX_ID (1 << 11)
-#endif
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: can_main
- ****************************************************************************/
-
-int can_main(int argc, char *argv[])
-{
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
-  struct can_msg_s txmsg;
-#ifdef CONFIG_CAN_EXTID
-  uint32_t msgid;
-#else
-  uint16_t msgid;
-#endif
-  int msgdlc;
-  uint8_t msgdata;
-#endif
-
-#ifndef CONFIG_EXAMPLES_CAN_WRITEONLY
-  struct can_msg_s rxmsg;
-#endif
-
-  size_t msgsize;
-  ssize_t nbytes;
-#if defined(CONFIG_NSH_BUILTIN_APPS) || defined(CONFIG_EXAMPLES_CAN_NMSGS)
-  long nmsgs;
-#endif
-
-  int fd;
-  int errval = 0;
-  int ret;
-  int i;
-
-  /* If this example is configured as an NX add-on, then limit the number of
-   * samples that we collect before returning.  Otherwise, we never return
-   */
-
-#if defined(CONFIG_NSH_BUILTIN_APPS)
-  nmsgs = CONFIG_EXAMPLES_CAN_NMSGS;
-  if (argc > 1)
-    {
-      nmsgs = strtol(argv[1], NULL, 10);
-    }
-  message("can_main: nmsgs: %d\n", nmsgs);
-#elif defined(CONFIG_EXAMPLES_CAN_NMSGS)
-  message("can_main: nmsgs: %d\n", CONFIG_EXAMPLES_CAN_NMSGS);
-#endif
-
-  /* Initialization of the CAN hardware is performed by logic external to
-   * this test.
-   */
-
-  message("can_main: Initializing external CAN device\n");
-  ret = can_devinit();
-  if (ret != OK)
-    {
-      message("can_main: can_devinit failed: %d\n", ret);
-      errval = 1;
-      goto errout;
-    }
-
-  /* Open the CAN device for reading */
-
-  message("can_main: Hardware initialized. Opening the CAN device\n");
-  fd = open(CONFIG_EXAMPLES_CAN_DEVPATH, CAN_OFLAGS);
-  if (fd < 0)
-    {
-      message("can_main: open %s failed: %d\n",
-              CONFIG_EXAMPLES_CAN_DEVPATH, errno);
-      errval = 2;
-      goto errout_with_dev;
-    }
-
-  /* Now loop the appropriate number of times, performing one loopback test
-   * on each pass.
-   */
-
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
-  msgdlc  = 1;
-  msgid   = 1;
-  msgdata = 0;
-#endif
-
-#if defined(CONFIG_NSH_BUILTIN_APPS)
-  for (; nmsgs > 0; nmsgs--)
-#elif defined(CONFIG_EXAMPLES_CAN_NMSGS)
-  for (nmsgs = 0; nmsgs < CONFIG_EXAMPLES_CAN_NMSGS; nmsgs++)
-#else
-  for (;;)
-#endif
-  {
-    /* Flush any output before the loop entered or from the previous pass
-     * through the loop.
-     */
-
-    msgflush();
-
-    /* Construct the next TX message */
-
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
-    txmsg.cm_hdr.ch_id    = msgid;
-    txmsg.cm_hdr.ch_rtr   = false;
-    txmsg.cm_hdr.ch_dlc   = msgdlc;
-#ifdef CONFIG_CAN_EXTID
-    txmsg.cm_hdr.ch_extid = true;
-#endif
-
-    for (i = 0; i < msgdlc; i++)
-      {
-        txmsg.cm_data[i] = msgdata + i;
-      }
-
-    /* Send the TX message */
-
-    msgsize = CAN_MSGLEN(msgdlc);
-    nbytes = write(fd, &txmsg, msgsize);
-    if (nbytes != msgsize)
-      {
-        message("ERROR: write(%d) returned %d\n", msgsize, nbytes);
-        errval = 3;
-        goto errout_with_dev;
-      }
-#endif
-
-#ifdef CONFIG_EXAMPLES_CAN_WRITEONLY
-    message("  ID: %4d DLC: %d\n", msgid, msgdlc);
-#endif
-
-    /* Read the RX message */
-
-#ifndef CONFIG_EXAMPLES_CAN_WRITEONLY
-    msgsize = sizeof(struct can_msg_s);
-    nbytes = read(fd, &rxmsg, msgsize);
-    if (nbytes < CAN_MSGLEN(0) || nbytes > msgsize)
-      {
-        message("ERROR: read(%d) returned %d\n", msgsize, nbytes);
-        errval = 4;
-        goto errout_with_dev;
-      }
-#endif
-
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
-    message("  ID: %4d DLC: %d\n", rxmsg.cm_hdr.id, rxmsg.cm_hdr.dlc);
-#endif
-
-    /* Verify that the received messages are the same */
-
-#ifdef CONFIG_EXAMPLES_CAN_READWRITE
-    if (memcmp(&txmsg.cm_hdr, &rxmsg.cm_hdr, sizeof(struct can_hdr_s)) != 0)
-      {
-        message("ERROR: Sent header does not match received header:\n");
-        lib_dumpbuffer("Sent header", (FAR const uint8_t*)&txmsg.cm_hdr, 
-                       sizeof(struct can_hdr_s));
-        lib_dumpbuffer("Received header", (FAR const uint8_t*)&rxmsg.cm_hdr, 
-                       sizeof(struct can_hdr_s));
-        errval = 4;
-        goto errout_with_dev;
-      }
-
-    if (memcmp(txmsg.cm_data, rxmsg.cm_data, msgdlc) != 0)
-      {
-        message("ERROR: Data does not match. DLC=%d\n", msgdlc);
-        for (i = 0; i < msgdlc; i++)
-          {
-            message("  %d: TX %02x RX %02x\n", i, txmsg.cm_data[i], rxmsg.cm_data[i]);
-            errval = 5;
-            goto errout_with_dev;
-          }
-      }
-
-    /* Report success */
-  
-    message("  ID: %4d DLC: %d -- OK\n", msgid, msgdlc);
-#endif
-
-    /* Set up for the next pass */
-
-#ifndef CONFIG_EXAMPLES_CAN_READONLY
-    msgdata += msgdlc;
- 
-    if (++msgid >= MAX_ID)
-      {
-        msgid = 1;
-      }
-
-    if (++msgdlc > CAN_MAXDATALEN)
-      {
-        msgdlc = 1;
-      }
-#endif
-  }
-
-errout_with_dev:
-  close(fd);
-
-errout:
-  message("Terminating!\n");
-  msgflush();
-  return errval;
-}
diff --git a/apps/examples/cdcacm/Kconfig b/apps/examples/cdcacm/Kconfig
deleted file mode 100644
index 8cd9c6e99..000000000
--- a/apps/examples/cdcacm/Kconfig
+++ /dev/null
@@ -1,14 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_CDCACM
-	bool "CAN example"
-	default n
-	---help---
-		Enable the USB CDC/ACM class driver example
-
-if EXAMPLES_CDCACM
-endif
-
diff --git a/apps/examples/cdcacm/Makefile b/apps/examples/cdcacm/Makefile
deleted file mode 100644
index 2cf3a107f..000000000
--- a/apps/examples/cdcacm/Makefile
+++ /dev/null
@@ -1,117 +0,0 @@
-############################################################################
-# apps/examples/cdcacm/Makefile
-#
-#   Copyright (C) 2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# USB CDC/ACM serial mass storage example
-
-ASRCS		=
-CSRCS		= cdcacm_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# USB CDC/ACM built-in application info
-
-APPNAME1	= sercon
-PRIORITY1	= SCHED_PRIORITY_DEFAULT
-STACKSIZE1	= 2048
-
-APPNAME2	= serdis
-PRIORITY2	= SCHED_PRIORITY_DEFAULT
-STACKSIZE2	= 2048
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: context clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME1)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME1),$(PRIORITY1),$(STACKSIZE1),$(APPNAME1)_main)
-
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME2)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME2),$(PRIORITY2),$(STACKSIZE2),$(APPNAME2)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME1)_main.bdat $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME2)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
-
diff --git a/apps/examples/cdcacm/cdcacm.h b/apps/examples/cdcacm/cdcacm.h
deleted file mode 100644
index 1b3b2511c..000000000
--- a/apps/examples/cdcacm/cdcacm.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/****************************************************************************
- * examples/cdcacm/cdcacm.h
- *
- *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __EXAMPLES_CDCACM_CDCACM_H
-#define __EXAMPLES_CDCACM_CDCACM_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdlib.h>
-
-#include <nuttx/usb/usbdev_trace.h>
-
-/****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
-/* Configuration ************************************************************/
-/* Prerequisites */
-
-#ifndef CONFIG_USBDEV
-#  error "CONFIG_USBDEV is not defined"
-#endif
-
-#ifndef CONFIG_CDCACM
-#  error "CONFIG_CDCACM is not defined"
-#endif
-
-#ifndef CONFIG_NSH_BUILTIN_APPS
-#  error "This example can only be built as an NSH built-in application"
-#endif
-
-/* Default configuration values */
-
-#ifndef CONFIG_EXAMPLES_CDCACM_DEVMINOR
-#  define CONFIG_EXAMPLES_CDCACM_DEVMINOR 0
-#endif
-
-/* Trace Configuration ******************************************************/
-
-#ifdef CONFIG_EXAMPLES_CDCACM_TRACEINIT
-#  define TRACE_INIT_BITS       (TRACE_INIT_BIT)
-#else
-#  define TRACE_INIT_BITS       (0)
-#endif
-
-#define TRACE_ERROR_BITS        (TRACE_DEVERROR_BIT|TRACE_CLSERROR_BIT)
-
-#ifdef CONFIG_EXAMPLES_CDCACM_TRACECLASS
-#  define TRACE_CLASS_BITS      (TRACE_CLASS_BIT|TRACE_CLASSAPI_BIT|TRACE_CLASSSTATE_BIT)
-#else
-#  define TRACE_CLASS_BITS      (0)
-#endif
-
-#ifdef CONFIG_EXAMPLES_CDCACM_TRACETRANSFERS
-#  define TRACE_TRANSFER_BITS   (TRACE_OUTREQQUEUED_BIT|TRACE_INREQQUEUED_BIT|TRACE_READ_BIT|\
-                                 TRACE_WRITE_BIT|TRACE_COMPLETE_BIT)
-#else
-#  define TRACE_TRANSFER_BITS   (0)
-#endif
-
-#ifdef CONFIG_EXAMPLES_CDCACM_TRACECONTROLLER
-#  define TRACE_CONTROLLER_BITS (TRACE_EP_BIT|TRACE_DEV_BIT)
-#else
-#  define TRACE_CONTROLLER_BITS (0)
-#endif
-
-#ifdef CONFIG_EXAMPLES_CDCACM_TRACEINTERRUPTS
-#  define TRACE_INTERRUPT_BITS  (TRACE_INTENTRY_BIT|TRACE_INTDECODE_BIT|TRACE_INTEXIT_BIT)
-#else
-#  define TRACE_INTERRUPT_BITS  (0)
-#endif
-
-#define TRACE_BITSET            (TRACE_INIT_BITS|TRACE_ERROR_BITS|TRACE_CLASS_BITS|\
-                                 TRACE_TRANSFER_BITS|TRACE_CONTROLLER_BITS|TRACE_INTERRUPT_BITS)
-
-/* Debug ********************************************************************/
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-#  ifdef CONFIG_DEBUG
-#    define message(...) lowsyslog(__VA_ARGS__)
-#    define msgflush()
-#  else
-#    define message(...) printf(__VA_ARGS__)
-#    define msgflush() fflush(stdout)
-#  endif
-#else
-#  ifdef CONFIG_DEBUG
-#    define message lowsyslog
-#    define msgflush()
-#  else
-#    define message printf
-#    define msgflush() fflush(stdout)
-#  endif
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/* All global variables used by this example are packed into a structure in
- * order to avoid name collisions.
- */
-
-struct cdcacm_state_s
-{
-  /* This is the handle that references to this particular USB storage driver
-   * instance.  It is only needed if the USB mass storage device example is
-   * built using CONFIG_NSH_BUILTIN_APPS.  In this case, the value
-   * of the driver handle must be remembered between the 'sercon' and 'msdis'
-   * commands.
-   */
-
-  FAR void *handle;
-};
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/* All global variables used by this example are packed into a structure in
- * order to avoid name collisions.
- */
-
-extern struct cdcacm_state_s g_cdcacm;
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-#endif /* __EXAMPLES_CDCACM_CDCACM_H */
diff --git a/apps/examples/cdcacm/cdcacm_main.c b/apps/examples/cdcacm/cdcacm_main.c
deleted file mode 100644
index aeb7a9e74..000000000
--- a/apps/examples/cdcacm/cdcacm_main.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/****************************************************************************
- * examples/cdcacm/cdcacm_main.c
- *
- *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <debug.h>
-
-#include <nuttx/usb/usbdev.h>
-#include <nuttx/usb/cdcacm.h>
-
-#include "cdcacm.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/* All global variables used by this example are packed into a structure in
- * order to avoid name collisions.
- */
-
-struct cdcacm_state_s g_cdcacm;
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * sercon_main
- *
- * Description:
- *   This is the main program that configures the CDC/ACM serial device.
- *
- ****************************************************************************/
-
-int sercon_main(int argc, char *argv[])
-{
-  int ret;
-
-  /* Check if there is a non-NULL USB mass storage device handle (meaning that the
-   * USB mass storage device is already configured).
-   */
-
-  if (g_cdcacm.handle)
-    {
-      message("sercon:: ERROR: Already connected\n");
-      return EXIT_FAILURE;
-    }
-
-  /* Then, in any event, enable trace data collection as configured BEFORE
-   * enabling the CDC/ACM device.
-   */
-
-  usbtrace_enable(TRACE_BITSET);
-
-  /* Initialize the USB CDC/ACM serial driver */
-
-  message("sercon: Registering CDC/ACM serial driver\n");
-  ret = cdcacm_initialize(CONFIG_EXAMPLES_CDCACM_DEVMINOR, &g_cdcacm.handle);
-  if (ret < 0)
-    {
-      message("sercon: ERROR: Failed to create the CDC/ACM serial device: %d\n", -ret);
-      return EXIT_FAILURE;
-    }
-
-  message("sercon: Successfully registered the CDC/ACM serial driver\n");
-  return EXIT_SUCCESS;
-}
-
-/****************************************************************************
- * serdis_main
- *
- * Description:
- *   This is a program entry point that will disconnect the CDC/ACM serial
- *   device.
- *
- ****************************************************************************/
-
-int serdis_main(int argc, char *argv[])
-{
-  /* First check if the USB mass storage device is already connected */
-
-  if (!g_cdcacm.handle)
-    {
-      message("serdis: ERROR: Not connected\n");
-      return EXIT_FAILURE;
-    }
-
-  /* Then, in any event, disable trace data collection as configured BEFORE
-   * enabling the CDC/ACM device.
-   */
-
-  usbtrace_enable(0);
-
-  /* Then disconnect the device and uninitialize the USB mass storage driver */
-
-   cdcacm_uninitialize(g_cdcacm.handle);
-   g_cdcacm.handle = NULL;
-   message("serdis: Disconnected\n");
-   return EXIT_SUCCESS;
-}
diff --git a/apps/examples/hello/Kconfig b/apps/examples/hello/Kconfig
deleted file mode 100644
index d697daa8a..000000000
--- a/apps/examples/hello/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_HELLO
-	bool "\"Hello, World!\" example"
-	default n
-	---help---
-		Enable the \"Hello, World!\" example
-
-if EXAMPLES_HELLO
-endif
diff --git a/apps/examples/hello/Makefile b/apps/examples/hello/Makefile
deleted file mode 100644
index c3b9744d7..000000000
--- a/apps/examples/hello/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
-############################################################################
-# apps/examples/hello/Makefile
-#
-#   Copyright (C) 2008, 2010-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# Hello, World! built-in application info
-
-APPNAME		= hello
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# Hello, World! Example
-
-ASRCS		=
-CSRCS		= hello_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/hello/hello_main.c b/apps/examples/hello/hello_main.c
deleted file mode 100644
index 229027c36..000000000
--- a/apps/examples/hello/hello_main.c
+++ /dev/null
@@ -1,64 +0,0 @@
-/****************************************************************************
- * examples/hello/hello_main.c
- *
- *   Copyright (C) 2008, 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <stdio.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * hello_main
- ****************************************************************************/
-
-int hello_main(int argc, char *argv[])
-{
-  printf("Hello, World!!\n");
-  return 0;
-}
-
diff --git a/apps/examples/helloxx/Kconfig b/apps/examples/helloxx/Kconfig
deleted file mode 100644
index 336389d24..000000000
--- a/apps/examples/helloxx/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_HELLOXX
-	bool "\"Hello, World!\" C++ example"
-	default n
-	---help---
-		Enable the \"Hello, World!\" C++ example
-
-if EXAMPLES_HELLOXX
-endif
diff --git a/apps/examples/helloxx/Makefile b/apps/examples/helloxx/Makefile
deleted file mode 100644
index 44d880658..000000000
--- a/apps/examples/helloxx/Makefile
+++ /dev/null
@@ -1,126 +0,0 @@
-############################################################################
-# apps/examples/helloxx/Makefile
-#
-#   Copyright (C) 2009-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# Hello, World! C++ Example
-
-ASRCS		=
-CSRCS		=
-CXXSRCS		= helloxx_main.cxx
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-CXXOBJS		= $(CXXSRCS:.cxx=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS) $(CXXSRCS)
-OBJS		= $(AOBJS) $(COBJS) $(CXXOBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# helloxx built-in application info
-
-APPNAME		= helloxx
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY:	clean depend distclean chkcxx
-
-chkcxx:
-ifneq ($(CONFIG_HAVE_CXX),y)
-	@echo ""
-	@echo "In order to use this example, you toolchain must support must"
-	@echo ""
-	@echo "  (1) Explicitly select CONFIG_HAVE_CXX to build in C++ support"
-	@echo "  (2) Define CXX, CXXFLAGS, and COMPILEXX in the Make.defs file"
-	@echo "      of the configuration that you are using."
-	@echo ""
-	@exit 1
-endif
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-$(CXXOBJS): %$(OBJEXT): %.cxx
-	$(call COMPILEXX, $<, $@)
-
-.built: chkcxx $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_EXAMPLES_HELLOXX_BUILTIN),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/helloxx/helloxx_main.cxx b/apps/examples/helloxx/helloxx_main.cxx
deleted file mode 100644
index 60fd0487b..000000000
--- a/apps/examples/helloxx/helloxx_main.cxx
+++ /dev/null
@@ -1,165 +0,0 @@
-//***************************************************************************
-// examples/helloxx/helloxx_main.cxx
-//
-//   Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved.
-//   Author: Gregory Nutt <gnutt@nuttx.org>
-//
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions
-// are met:
-//
-// 1. Redistributions of source code must retain the above copyright
-//    notice, this list of conditions and the following disclaimer.
-// 2. Redistributions in binary form must reproduce the above copyright
-//    notice, this list of conditions and the following disclaimer in
-//    the documentation and/or other materials provided with the
-//    distribution.
-// 3. Neither the name NuttX nor the names of its contributors may be
-//    used to endorse or promote products derived from this software
-//    without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-// POSSIBILITY OF SUCH DAMAGE.
-//
-//***************************************************************************
-
-//***************************************************************************
-// Included Files
-//***************************************************************************
-
-#include <nuttx/config.h>
-
-#include <cstdio>
-#include <debug.h>
-
-#include <nuttx/init.h>
-#include <nuttx/arch.h>
-
-//***************************************************************************
-// Definitions
-//***************************************************************************
-// Debug ********************************************************************
-// Non-standard debug that may be enabled just for testing the constructors
-
-#ifndef CONFIG_DEBUG
-#  undef CONFIG_DEBUG_CXX
-#endif
-
-#ifdef CONFIG_DEBUG_CXX
-#  define cxxdbg              dbg
-#  define cxxlldbg            lldbg
-#  ifdef CONFIG_DEBUG_VERBOSE
-#    define cxxvdbg           vdbg
-#    define cxxllvdbg         llvdbg
-#  else
-#    define cxxvdbg(x...)
-#    define cxxllvdbg(x...)
-#  endif
-#else
-#  define cxxdbg(x...)
-#  define cxxlldbg(x...)
-#  define cxxvdbg(x...)
-#  define cxxllvdbg(x...)
-#endif
-
-//***************************************************************************
-// Private Classes
-//***************************************************************************
-
-class CHelloWorld
-{
-  public:
-    CHelloWorld(void) : mSecret(42)
-    {
-      cxxdbg("Constructor: mSecret=%d\n", mSecret);
-    }
-
-    ~CHelloWorld(void)
-    {
-      cxxdbg("Destructor\n");
-    }
-
-    bool HelloWorld(void)
-    {
-        cxxdbg("HelloWorld: mSecret=%d\n", mSecret);
-
-        if (mSecret != 42)
-          {
-            printf("CHelloWorld::HelloWorld: CONSTRUCTION FAILED!\n");
-            return false;
-          }
-        else
-          {
-            printf("CHelloWorld::HelloWorld: Hello, World!!\n");
-            return true;
-          }
-    }
-
-  private:
-    int mSecret;
-};
-
-//***************************************************************************
-// Private Data
-//***************************************************************************
-
-// Define a statically constructed CHellowWorld instance if C++ static
-// initializers are supported by the platform
-
-#ifdef CONFIG_HAVE_CXXINITIALIZE 
-static CHelloWorld g_HelloWorld;
-#endif
-
-//***************************************************************************
-// Public Functions
-//***************************************************************************
-
-/****************************************************************************
- * Name: helloxx_main
- ****************************************************************************/
-
-int helloxx_main(int argc, char *argv[])
-{
-  // If C++ initialization for static constructors is supported, then do
-  // that first
-
-#ifdef CONFIG_HAVE_CXXINITIALIZE
-  up_cxxinitialize();
-#endif
-
-  // Exercise an explictly instantiated C++ object
-
-  CHelloWorld *pHelloWorld = new CHelloWorld;
-  printf("helloxx_main: Saying hello from the dynamically constructed instance\n");
-  pHelloWorld->HelloWorld();
-
-  // Exercise an C++ object instantiated on the stack
-
-#ifndef CONFIG_EXAMPLES_HELLOXX_NOSTACKCONST
-  CHelloWorld HelloWorld;
-
-  printf("helloxx_main: Saying hello from the instance constructed on the stack\n");
-  HelloWorld.HelloWorld();
-#endif
-
-  // Exercise an statically constructed C++ object
-
-#ifdef CONFIG_HAVE_CXXINITIALIZE
-  printf("helloxx_main: Saying hello from the statically constructed instance\n");
-  g_HelloWorld.HelloWorld();
-#endif
-
-  delete pHelloWorld;
-  return 0;
-}
-
diff --git a/apps/examples/lcdrw/Kconfig b/apps/examples/lcdrw/Kconfig
deleted file mode 100644
index 2308ddc60..000000000
--- a/apps/examples/lcdrw/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_LCDRW
-	bool "LCD read/write example"
-	default n
-	---help---
-		Enable the LCD read/write example
-
-if EXAMPLES_LCDRW
-endif
diff --git a/apps/examples/mm/Kconfig b/apps/examples/mm/Kconfig
deleted file mode 100644
index 81ce4c453..000000000
--- a/apps/examples/mm/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_MM
-	bool "Memory management example"
-	default n
-	---help---
-		Enable the memory management example
-
-if EXAMPLES_MM
-endif
diff --git a/apps/examples/mm/Makefile b/apps/examples/mm/Makefile
deleted file mode 100644
index 5ba7f4eec..000000000
--- a/apps/examples/mm/Makefile
+++ /dev/null
@@ -1,96 +0,0 @@
-############################################################################
-# apps/examples/mm/Makefile
-#
-#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# Memory Management Test
-
-ASRCS		=
-CSRCS		= mm_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-context:
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/mm/mm_main.c b/apps/examples/mm/mm_main.c
deleted file mode 100644
index 149550418..000000000
--- a/apps/examples/mm/mm_main.c
+++ /dev/null
@@ -1,300 +0,0 @@
-/****************************************************************************
- * examples/mm/mm_main.c
- *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#define NTEST_ALLOCS 32
-
-/* #define STOP_ON_ERRORS do{}while(0) */
-#define STOP_ON_ERRORS exit(1)
-
-/* All other definitions derive from these two */
-
-#define MM_MIN_SHIFT      4  /* 16 bytes */
-#define MM_MIN_CHUNK     (1 << MM_MIN_SHIFT)
-#define MM_GRAN_MASK     (MM_MIN_CHUNK-1)
-#define MM_ALIGN_UP(a)   (((a) + MM_GRAN_MASK) & ~MM_GRAN_MASK)
-#define MM_ALIGN_DOWN(a) ((a) & ~MM_GRAN_MASK)
-
-#ifdef CONFIG_SMALL_MEMORY
-# define SIZEOF_MM_ALLOCNODE   4
-#else
-# define SIZEOF_MM_ALLOCNODE   8
-#endif
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-/* Test allocations */
-
-static const int   alloc_sizes[NTEST_ALLOCS] =
-{
-  1024,     12,    962,   5692, 10254,   111,   9932,    601,
-   222,   2746,      3, 124321,    68,   776,   6750,    852,
-  4732,     28,    901,    480,  5011,  1536,   2011,  81647,
-   646,   1646,  69179,    194,  2590,     7,    969,     70
-};
-
-static const int   realloc_sizes[NTEST_ALLOCS] =
-{
-    18,   3088,    963,    123,   511, 11666,   3723,     42,
-  9374,   1990,   1412,      6,   592,  4088,     11,   5040,
-  8663,  91255,     28,   4346,  9172,   168,    229,   4734,
- 59139,    221,   7830,  30421,  1666,     4,    812,    416
-};
-
-static const int random1[NTEST_ALLOCS] =
-{
-    20,     11,      3,     31,     9,    29,      7,     17,
-    21,      2,     26,     18,    14,    25,      0,     10,
-    27,     19,     22,     28,     8,    30,     12,     15,
-     4,      1,     24,      6,    16,    13,      5,     23
-};
-
-static const int random2[NTEST_ALLOCS] =
-{
-     2,     19,     12,     23,    30,    11,     27,      4,
-    20,      7,      0,     16,    28,    15,      5,     24,
-    10,     17,     25,     31,     8,    29,      3,     26,
-     9,     18,     22,     13,     1,    21,     14,      6
-};
-
-static const int random3[NTEST_ALLOCS] =
-{
-    8,      17,      3,     18,     26,   23,     30,     11,
-    12,     22,      4,     20,     25,   10,     27,      1,
-    29,     14,     19,     21,      0,   31,      7,     24,
-     9,     15,      2,     28,     16,    6,     13,      5
-};
-
-static const int alignment[NTEST_ALLOCS/2] =
-{
-    128,  2048, 131072,   8192,    32,  32768, 16384 , 262144,
-    512,  4096,  65536,      8,     64,  1024,    16,       4
-};
-
-static void        *allocs[NTEST_ALLOCS];
-static struct       mallinfo alloc_info;
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-static void mm_showmallinfo(void)
-{
-  alloc_info = mallinfo();
-  printf("     mallinfo:\n");
-  printf("       Total space allocated from system = %ld\n",
-	 alloc_info.arena);
-  printf("       Number of non-inuse chunks        = %ld\n",
-	 alloc_info.ordblks);
-  printf("       Largest non-inuse chunk           = %ld\n",
-	 alloc_info.mxordblk);
-  printf("       Total allocated space             = %ld\n",
-	 alloc_info.uordblks);
-  printf("       Total non-inuse space             = %ld\n",
-	 alloc_info.fordblks);
-}
-
-static void do_mallocs(void **mem, const int *size, const int *seq, int n)
-{
-  int i;
-  int j;
-
-  for (i = 0; i < n; i++)
-    {
-      j = seq[i];
-      if (!mem[j])
-        {
-          printf("(%d)Allocating %d bytes\n", i,  size[j]);
-          mem[j] = malloc(size[j]);
-          printf("(%d)Memory allocated at %p\n", i, mem[j]);
-          if (mem[j] == NULL)
-            {
-              int allocsize = MM_ALIGN_UP(size[j] + SIZEOF_MM_ALLOCNODE);
-              fprintf(stderr, "(%d)malloc failed for allocsize=%d\n", i, allocsize);
-              if (allocsize > alloc_info.mxordblk)
-                {
-                   fprintf(stderr, "   Normal, largest free block is only %ld\n", alloc_info.mxordblk);
-                }
-              else
-                {
-                  fprintf(stderr, "   ERROR largest free block is %ld\n", alloc_info.mxordblk);
-                  exit(1);
-                }
-            }
-          else
-            {
-              memset(mem[j], 0xAA, size[j]);
-            }
-
-          mm_showmallinfo();
-        }
-    }
-}
-
-static void do_reallocs(void **mem, const int *oldsize, const int *newsize, const int *seq, int n)
-{
-  int i;
-  int j;
-
-  for (i = 0; i < n; i++)
-    {
-      j = seq[i];
-      printf("(%d)Re-allocating at %p from %d to %d bytes\n",
-	     i, mem[j], oldsize[j], newsize[j]);
-      mem[j] = realloc(mem[j], newsize[j]);
-      printf("(%d)Memory re-allocated at %p\n", i, mem[j]);
-      if (mem[j] == NULL)
-	{
-          int allocsize = MM_ALIGN_UP(newsize[j] + SIZEOF_MM_ALLOCNODE);
-          fprintf(stderr, "(%d)realloc failed for allocsize=%d\n", i, allocsize);
-          if (allocsize > alloc_info.mxordblk)
-            {
-              fprintf(stderr, "   Normal, largest free block is only %ld\n", alloc_info.mxordblk);
-            }
-          else
-            {
-              fprintf(stderr, "   ERROR largest free block is %ld\n", alloc_info.mxordblk);
-              exit(1);
-            }
-	}
-      else
-        {
-          memset(mem[j], 0x55, newsize[j]);
-        }
-
-      mm_showmallinfo();
-    }
-}
-
-static void do_memaligns(void **mem, const int *size, const int *align, const int *seq, int n)
-{
-  int i;
-  int j;
-
-  for (i = 0; i < n; i++)
-    {
-      j = seq[i];
-      printf("(%d)Allocating %d bytes aligned to 0x%08x\n",
-	     i,  size[j], align[i]);
-      mem[j] = memalign(align[i], size[j]);
-      printf("(%d)Memory allocated at %p\n", i, mem[j]);
-      if (mem[j] == NULL)
-	{
-          int allocsize = MM_ALIGN_UP(size[j] + SIZEOF_MM_ALLOCNODE) + 2*align[i];
-          fprintf(stderr, "(%d)memalign failed for allocsize=%d\n", i, allocsize);
-          if (allocsize > alloc_info.mxordblk)
-            {
-              fprintf(stderr, "   Normal, largest free block is only %ld\n", alloc_info.mxordblk);
-            }
-          else
-            {
-              fprintf(stderr, "   ERROR largest free block is %ld\n", alloc_info.mxordblk);
-              exit(1);
-            }
-	}
-      else
-        {
-          memset(mem[j], 0x33, size[j]);
-        }
-
-      mm_showmallinfo();
-    }
-}
-
-static void do_frees(void **mem, const int *size, const int *seq, int n)
-{
-  int i;
-  int j;
-
-  for (i = 0; i < n; i++)
-    {
-      j = seq[i];
-      printf("(%d)Releasing memory at %p (size=%d bytes)\n",
-	     i, mem[j], size[j]);
-      free(mem[j]);
-      mem[j] = NULL;
-
-      mm_showmallinfo();
-    }
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: mm_main
- ****************************************************************************/
-
-int mm_main(int argc, char *argv[])
-{
-  mm_showmallinfo();
-
-  /* Allocate some memory */
-
-  do_mallocs(allocs, alloc_sizes, random1, NTEST_ALLOCS);
-
-  /* Re-allocate the memory */
-
-  do_reallocs(allocs, alloc_sizes, realloc_sizes, random2, NTEST_ALLOCS);
-
-  /* Release the memory */
-
-  do_frees(allocs, realloc_sizes, random3, NTEST_ALLOCS);
-
-  /* Allocate aligned memory */
-
-  do_memaligns(allocs, alloc_sizes, alignment, random2, NTEST_ALLOCS/2);
-  do_memaligns(allocs, alloc_sizes, alignment, &random2[NTEST_ALLOCS/2], NTEST_ALLOCS/2);
-
-  /* Release aligned memory */
-
-  do_frees(allocs, alloc_sizes, random1, NTEST_ALLOCS);
-
-  printf("TEST COMPLETE\n");
-  return 0;
-}
diff --git a/apps/examples/mount/Kconfig b/apps/examples/mount/Kconfig
deleted file mode 100644
index b38c4763c..000000000
--- a/apps/examples/mount/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_MOUNT
-	bool "File system mount example"
-	default n
-	---help---
-		Enable the file system mount example
-
-if EXAMPLES_MOUNT
-endif
diff --git a/apps/examples/mount/Makefile b/apps/examples/mount/Makefile
deleted file mode 100644
index 133bdfa1f..000000000
--- a/apps/examples/mount/Makefile
+++ /dev/null
@@ -1,96 +0,0 @@
-############################################################################
-# apps/Makefile
-#
-#   Copyright (C) 2007-2008, 2010-2010, 2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# mount() test
-
-ASRCS		=
-CSRCS		= mount_main.c ramdisk.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-context:
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/mount/mount.h b/apps/examples/mount/mount.h
deleted file mode 100644
index c75686086..000000000
--- a/apps/examples/mount/mount.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/****************************************************************************
- * examples/mount/mount.h
- *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __EXAMPLES_MOUNT_MOUNT_H
-#define __EXAMPLES_MOUNT_MOUNT_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/* Configure the test */
-
-#if defined(CONFIG_EXAMPLES_MOUNT_DEVNAME)
-#  if !defined(CONFIG_FS_WRITABLE)
-#    error "Writable filesystem required in this configuration"
-#  endif
-#  undef  CONFIG_EXAMPLES_MOUNT_NSECTORS
-#  undef  CONFIG_EXAMPLES_MOUNT_SECTORSIZE
-#  undef  CONFIG_EXAMPLES_MOUNT_RAMDEVNO
-#  define MOUNT_DEVNAME CONFIG_EXAMPLES_MOUNT_DEVNAME
-#else
-#  if !defined(CONFIG_FS_FAT)
-#    error "CONFIG_FS_FAT required in this configuration"
-#  endif
-#  if !defined(CONFIG_EXAMPLES_MOUNT_SECTORSIZE)
-#    define CONFIG_EXAMPLES_MOUNT_SECTORSIZE 512
-#  endif
-#  if !defined(CONFIG_EXAMPLES_MOUNT_NSECTORS)
-#    define CONFIG_EXAMPLES_MOUNT_NSECTORS   2048
-#  endif
-#  if !defined(CONFIG_EXAMPLES_MOUNT_RAMDEVNO)
-#     define CONFIG_EXAMPLES_MOUNT_RAMDEVNO  0
-#  endif
-#  define STR_RAMDEVNO(m)    #m
-#  define MKMOUNT_DEVNAME(m) "/dev/ram" STR_RAMDEVNO(m)
-#  define MOUNT_DEVNAME      MKMOUNT_DEVNAME(CONFIG_EXAMPLES_MOUNT_RAMDEVNO)
-#endif
-
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-extern const char g_source[]; /* Mount 'source' path */
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-#ifndef CONFIG_EXAMPLES_MOUNT_DEVNAME
-extern int create_ramdisk(void);
-#endif
-
-#endif /* __EXAMPLES_MOUNT_MOUNT_H */
diff --git a/apps/examples/mount/mount_main.c b/apps/examples/mount/mount_main.c
deleted file mode 100644
index e0eb8a615..000000000
--- a/apps/examples/mount/mount_main.c
+++ /dev/null
@@ -1,754 +0,0 @@
-/****************************************************************************
- * examples/mount/mount_main.c
- *
- *   Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <sys/statfs.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <errno.h>
-
-#include "mount.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#define TEST_USE_STAT         1
-#define TEST_SHOW_DIRECTORIES 1
-#define TEST_USE_STATFS       1
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static const char g_mntdir[]         = "/mnt";
-static const char g_target[]         = "/mnt/fs";
-static const char g_filesystemtype[] = "vfat";
-
-static const char g_testdir1[]       = "/mnt/fs/TestDir";
-static const char g_testdir2[]       = "/mnt/fs/NewDir1";
-static const char g_testdir3[]       = "/mnt/fs/NewDir2";
-static const char g_testdir4[]       = "/mnt/fs/NewDir3";
-#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
-static const char g_testfile1[]      = "/mnt/fs/TestDir/TestFile.txt";
-#endif
-static const char g_testfile2[]      = "/mnt/fs/TestDir/WrTest1.txt";
-static const char g_testfile3[]      = "/mnt/fs/NewDir1/WrTest2.txt";
-static const char g_testfile4[]      = "/mnt/fs/NewDir3/Renamed.txt";
-static const char g_testmsg[]        = "This is a write test";
-
-static int        g_nerrors          = 0;
-
-static char       g_namebuffer[256];
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-       const char g_source[]         = MOUNT_DEVNAME;
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-#ifdef TEST_USE_STAT
-static void show_stat(const char *path, struct stat *ps)
-{
-  printf("%s stat:\n", path);
-  printf("\tmode        : %08x\n", ps->st_mode);
-  if (S_ISREG(ps->st_mode))
-    {
-      printf("\ttype        : File\n");
-    }
-  else if (S_ISDIR(ps->st_mode))
-    {
-      printf("\ttype        : Directory\n");
-    }
-  else if (S_ISCHR(ps->st_mode))
-    {
-      printf("\ttype        : Character driver\n");
-    }
-  else if (S_ISBLK(ps->st_mode))
-    {
-      printf("\ttype        : Block driver\n");
-    }
-  else
-    {
-      printf("\ttype        : Unknown\n");
-    }
-
-  printf("\tsize        : %d (bytes)\n",  ps->st_size);
-  printf("\tblock size  : %d (bytes)\n",  ps->st_blksize);
-  printf("\tsize        : %d (blocks)\n", ps->st_blocks);
-  printf("\taccess time : %d\n", ps->st_atime);
-  printf("\tmodify time : %d\n", ps->st_mtime);
-  printf("\tchange time : %d\n", ps->st_ctime);
-}
-#endif
-
-/****************************************************************************
- * Name: show_statfs
- ****************************************************************************/
-
-#ifdef TEST_USE_STATFS
-static void show_statfs(const char *path)
-{
-  struct statfs buf;
-  int ret;
-
-  /* Try stat() against a file or directory.  It should fail with expectederror */
-
-  printf("show_statfs: Try statfs(%s)\n", path);
-  ret = statfs(path, &buf);
-  if (ret == 0)
-    {
-      printf("show_statfs: statfs(%s) succeeded\n", path);
-      printf("\tFS Type           : %0x\n", buf.f_type);
-      printf("\tBlock size        : %d\n", buf.f_bsize);
-      printf("\tNumber of blocks  : %d\n", buf.f_blocks);
-      printf("\tFree blocks       : %d\n", buf.f_bfree);
-      printf("\tFree user blocks  : %d\n", buf.f_bavail);
-      printf("\tNumber file nodes : %d\n", buf.f_files);
-      printf("\tFree file nodes   : %d\n", buf.f_ffree);
-      printf("\tFile name length  : %d\n", buf.f_namelen);
-    }
-  else
-    {
-      printf("show_statfs: ERROR statfs(%s) failed with errno=%d\n",
-             path, errno);
-      g_nerrors++;
-    }
-}
-#else
-# define show_statfs(p)
-#endif
-
-/****************************************************************************
- * Name: show_directories
- ****************************************************************************/
-
-#ifdef TEST_SHOW_DIRECTORIES
-static void show_directories(const char *path, int indent)
-{
-  DIR *dirp;
-  struct dirent *direntry;
-  int i;
-
-  dirp = opendir(path);
-  if ( !dirp )
-    {
-      printf("show_directories: ERROR opendir(\"%s\") failed with errno=%d\n",
-             path, errno);
-      g_nerrors++;
-      return;
-    }
-
-  for (direntry = readdir(dirp); direntry; direntry = readdir(dirp))
-    {
-      for (i = 0; i < 2*indent; i++)
-        {
-          putchar(' ');
-        }
-      if (DIRENT_ISDIRECTORY(direntry->d_type))
-        {
-          char *subdir;
-          printf("%s/\n", direntry->d_name);
-          sprintf(g_namebuffer, "%s/%s", path, direntry->d_name);
-          subdir = strdup(g_namebuffer);
-          show_directories( subdir, indent + 1);
-          free(subdir);
-        }
-      else
-        {
-          printf("%s\n", direntry->d_name);
-        }
-    }
-
-  closedir(dirp);
-}
-#else
-# define show_directories(p,i)
-#endif
-
-/****************************************************************************
- * Name: fail_read_open
- ****************************************************************************/
-#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
-static void fail_read_open(const char *path, int expectederror)
-{
-  int fd;
-
-  printf("fail_read_open: Try open(%s) for reading\n", path);
-
-  fd = open(path, O_RDONLY);
-  if (fd >= 0)
-    {
-      printf("fail_read_open: ERROR open(%s) succeeded\n", path);
-      g_nerrors++;
-      close(fd);
-    }
-  else if (errno != expectederror)
-    {
-      printf("fail_read_open: ERROR open(%s) failed with errno=%d (expected %d)\n",
-             path, errno, expectederror);
-      g_nerrors++;
-    }
-}
-#endif
-
-/****************************************************************************
- * Name: read_test_file
- ****************************************************************************/
-
-static void read_test_file(const char *path)
-{
-  char buffer[128];
-  int  nbytes;
-  int  fd;
-
-  /* Read a test file that is already on the test file system image */
-
-  printf("read_test_file: opening %s for reading\n", path);
-
-  fd = open(path, O_RDONLY);
-  if (fd < 0)
-    {
-      printf("read_test_file: ERROR failed to open %s, errno=%d\n",
-             path, errno);
-      g_nerrors++;
-    }
-  else
-    {
-      memset(buffer, 0, 128);
-      nbytes = read(fd, buffer, 128);
-      if (nbytes < 0)
-        {
-          printf("read_test_file: ERROR failed to read from %s, errno=%d\n",
-                 path, errno);
-          g_nerrors++;
-        }
-      else
-        {
-          buffer[127]='\0';
-          printf("read_test_file: Read \"%s\" from %s\n", buffer, path);
-        }
-      close(fd);
-    }
-}
-
-/****************************************************************************
- * Name: write_test_file
- ****************************************************************************/
-
-static void write_test_file(const char *path)
-{
-  int fd;
-
-  /* Write a test file into a pre-existing file on the test file system */
-
-  printf("write_test_file: opening %s for writing\n", path);
-
-  fd = open(path, O_WRONLY|O_CREAT|O_TRUNC, 0644);
-  if (fd < 0)
-    {
-      printf("write_test_file: ERROR failed to open %s for writing, errno=%d\n",
-             path, errno);
-      g_nerrors++;
-    }
-  else
-    {
-      int nbytes = write(fd, g_testmsg, strlen(g_testmsg));
-      if (nbytes < 0)
-        {
-          printf("write_test_file: ERROR failed to write to %s, errno=%d\n",
-                 path, errno);
-          g_nerrors++;
-        }
-      else
-        {
-          printf("write_test_file: wrote %d bytes to %s\n", nbytes, path);
-        }
-      close(fd);
-    }
-}
-
-/****************************************************************************
- * Name: fail_mkdir
- ****************************************************************************/
-
-static void fail_mkdir(const char *path, int expectederror)
-{
-  int ret;
-
-  /* Try mkdir() against a file or directory.  It should fail with expectederror */
-
-  printf("fail_mkdir: Try mkdir(%s)\n", path);
-
-  ret = mkdir(path, 0666);
-  if (ret == 0)
-    {
-      printf("fail_mkdir: ERROR mkdir(%s) succeeded\n", path);
-      g_nerrors++;
-    }
-  else if (errno != expectederror)
-    {
-      printf("fail_mkdir: ERROR mkdir(%s) failed with errno=%d (expected %d)\n",
-             path, errno, expectederror);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: succeed_mkdir
- ****************************************************************************/
-
-static void succeed_mkdir(const char *path)
-{
-  int ret;
-
-  printf("succeed_mkdir: Try mkdir(%s)\n", path);
-
-  ret = mkdir(path, 0666);
-  if (ret != 0)
-    {
-      printf("succeed_mkdir: ERROR mkdir(%s) failed with errno=%d\n",
-             path, errno);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: fail_rmdir
- ****************************************************************************/
-
-static void fail_rmdir(const char *path, int expectederror)
-{
-  int ret;
-
-  /* Try rmdir() against a file or directory.  It should fail with expectederror */
-
-  printf("fail_rmdir: Try rmdir(%s)\n", path);
-
-  ret = rmdir(path);
-  if (ret == 0)
-    {
-      printf("fail_rmdir: ERROR rmdir(%s) succeeded\n", path);
-      g_nerrors++;
-    }
-  else if (errno != expectederror)
-    {
-      printf("fail_rmdir: ERROR rmdir(%s) failed with errno=%d (expected %d)\n",
-             path, errno, expectederror);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: succeed_rmdir
- ****************************************************************************/
-
-static void succeed_rmdir(const char *path)
-{
-  int ret;
-
-  printf("succeed_rmdir: Try rmdir(%s)\n", path);
-
-  ret = rmdir(path);
-  if (ret != 0)
-    {
-      printf("succeed_rmdir: ERROR rmdir(%s) failed with errno=%d\n",
-             path, errno);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: fail_unlink
- ****************************************************************************/
-
-static void fail_unlink(const char *path, int expectederror)
-{
-  int ret;
-
-  /* Try unlink() against a file or directory.  It should fail with expectederror */
-
-  printf("fail_unlink: Try unlink(%s)\n", path);
-
-  ret = unlink(path);
-  if (ret == 0)
-    {
-      printf("fail_unlink: ERROR unlink(%s) succeeded\n", path);
-      g_nerrors++;
-    }
-  else if (errno != expectederror)
-    {
-      printf("fail_unlink: ERROR unlink(%s) failed with errno=%d (expected %d)\n",
-             path, errno, expectederror);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: succeed_unlink
- ****************************************************************************/
-
-static void succeed_unlink(const char *path)
-{
-  int ret;
-
-  /* Try unlink() against the test file.  It should succeed. */
-
-  printf("succeed_unlink: Try unlink(%s)\n", path);
-
-  ret = unlink(path);
-  if (ret != 0)
-    {
-      printf("succeed_unlink: ERROR unlink(%s) failed with errno=%d\n",
-             path, errno);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: fail_rename
- ****************************************************************************/
-
-static void fail_rename(const char *oldpath, const char *newpath, int expectederror)
-{
-  int ret;
-
-  /* Try rename() against a file or directory.  It should fail with expectederror */
-
-  printf("fail_rename: Try rename(%s->%s)\n", oldpath, newpath);
-
-  ret = rename(oldpath, newpath);
-  if (ret == 0)
-    {
-      printf("fail_rename: ERROR rename(%s->%s) succeeded\n",
-             oldpath, newpath);
-      g_nerrors++;
-    }
-  else if (errno != expectederror)
-    {
-      printf("fail_rename: ERROR rename(%s->%s) failed with errno=%d (expected %d)\n",
-             oldpath, newpath, errno, expectederror);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: succeed_rename
- ****************************************************************************/
-
-static void succeed_rename(const char *oldpath, const char *newpath)
-{
-  int ret;
-
-  printf("succeed_rename: Try rename(%s->%s)\n", oldpath, newpath);
-
-  ret = rename(oldpath, newpath);
-  if (ret != 0)
-    {
-      printf("succeed_rename: ERROR rename(%s->%s) failed with errno=%d\n",
-             oldpath, newpath, errno);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: fail_stat
- ****************************************************************************/
-
-#ifdef TEST_USE_STAT
-static void fail_stat(const char *path, int expectederror)
-{
-  struct stat buf;
-  int ret;
-
-  /* Try stat() against a file or directory.  It should fail with expectederror */
-
-  printf("fail_stat: Try stat(%s)\n", path);
-
-  ret = stat(path, &buf);
-  if (ret == 0)
-    {
-      printf("fail_stat: ERROR stat(%s) succeeded\n", path);
-      show_stat(path, &buf);
-      g_nerrors++;
-    }
-  else if (errno != expectederror)
-    {
-      printf("fail_stat: ERROR stat(%s) failed with errno=%d (expected %d)\n",
-             path, errno, expectederror);
-      g_nerrors++;
-    }
-}
-#else
-# define fail_stat(p,e);
-#endif
-
-/****************************************************************************
- * Name: succeed_stat
- ****************************************************************************/
-
-#ifdef TEST_USE_STAT
-static void succeed_stat(const char *path)
-{
-  struct stat buf;
-  int ret;
-
-  printf("succeed_stat: Try stat(%s)\n", path);
-
-  ret = stat(path, &buf);
-  if (ret != 0)
-    {
-      printf("succeed_stat: ERROR stat(%s) failed with errno=%d\n",
-             path, errno);
-      g_nerrors++;
-    }
-  else
-    {
-      printf("succeed_stat: stat(%s) succeeded\n", path);
-      show_stat(path, &buf);
-    }
-}
-#else
-#define succeed_stat(p)
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: mount_main
- ****************************************************************************/
-
-int mount_main(int argc, char *argv[])
-{
-  int  ret;
-
-#ifndef CONFIG_EXAMPLES_MOUNT_DEVNAME
-  /* Create a RAM disk for the test */
-
-  ret = create_ramdisk();
-  if (ret < 0)
-    {
-      printf("mount_main: ERROR failed to create RAM disk\n");
-      return 1;
-    }
-#endif
-
-  /* Mount the test file system (see arch/sim/src/up_deviceimage.c */
-
-  printf("mount_main: mounting %s filesystem at target=%s with source=%s\n",
-         g_filesystemtype, g_target, g_source);
-
-  ret = mount(g_source, g_target, g_filesystemtype, 0, NULL);
-  printf("mount_main: mount() returned %d\n", ret);
-
-  if (ret == 0)
-    {
-      show_statfs(g_mntdir);
-      show_statfs(g_target);
-
-#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
-      /* Read a test file that is already on the test file system image */
-
-      show_directories("", 0);
-      succeed_stat(g_testfile1);
-      show_statfs(g_testfile1);
-      read_test_file(g_testfile1);
-#else
-      /* Create the test directory that would have been on the canned filesystem */
-
-      succeed_mkdir(g_testdir1);
-      show_directories("", 0);
-      succeed_stat(g_testdir1);
-      show_statfs(g_testdir1);
-#endif
-
-      /* Write a test file into a pre-existing directory on the test file system */
-
-      fail_stat(g_testfile2, ENOENT);
-      write_test_file(g_testfile2);
-      show_directories("", 0);
-      succeed_stat(g_testfile2);
-      show_statfs(g_testfile2);
-
-      /* Read the file that we just wrote */
-
-      read_test_file(g_testfile2);
-
-      /* Try rmdir() against a file on the directory.  It should fail with ENOTDIR */
-#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
-      fail_rmdir(g_testfile1, ENOTDIR);
-#endif
-
-      /* Try rmdir() against the test directory.  It should fail with ENOTEMPTY */
-
-      fail_rmdir(g_testdir1, ENOTEMPTY);
-
-      /* Try unlink() against the test directory.  It should fail with EISDIR */
-
-      fail_unlink(g_testdir1, EISDIR);
-
-      /* Try unlink() against the test file1.  It should succeed. */
-#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
-      succeed_unlink(g_testfile1);
-      fail_stat(g_testfile1, ENOENT);
-      show_directories("", 0);
-#endif
-
-      /* Attempt to open testfile1 should fail with ENOENT */
-#ifdef CONFIG_EXAMPLES_MOUNT_DEVNAME
-      fail_read_open(g_testfile1, ENOENT);
-#endif
-      /* Try rmdir() against the test directory.  It should still fail with ENOTEMPTY */
-
-      fail_rmdir(g_testdir1, ENOTEMPTY);
-
-      /* Try mkdir() against the test file2.  It should fail with EEXIST. */
-
-      fail_mkdir(g_testfile2, EEXIST);
-
-      /* Try unlink() against the test file2.  It should succeed. */
-
-      succeed_unlink(g_testfile2);
-      show_directories("", 0);
-      fail_stat(g_testfile2, ENOENT);
-
-      /* Try mkdir() against the test dir1.  It should fail with EEXIST. */
-
-      fail_mkdir(g_testdir1, EEXIST);
-
-      /* Try rmdir() against the test directory.  mkdir should now succeed. */
-
-      succeed_rmdir(g_testdir1);
-      show_directories("", 0);
-      fail_stat(g_testdir1, ENOENT);
-
-      /* Try mkdir() against the test dir2.  It should succeed */
-
-      succeed_mkdir(g_testdir2);
-      show_directories("", 0);
-      succeed_stat(g_testdir2);
-      show_statfs(g_testdir2);
-
-      /* Try mkdir() against the test dir2.  It should fail with EXIST */
-
-      fail_mkdir(g_testdir2, EEXIST);
-
-      /* Write a test file into a new directory on the test file system */
-
-      fail_stat(g_testfile3, ENOENT);
-      write_test_file(g_testfile3);
-      show_directories("", 0);
-      succeed_stat(g_testfile3);
-      show_statfs(g_testfile3);
-
-      /* Read the file that we just wrote */
-
-      read_test_file(g_testfile3);
-
-      /* Use mkdir() to create test dir3.  It should succeed */
-
-      fail_stat(g_testdir3, ENOENT);
-      succeed_mkdir(g_testdir3);
-      show_directories("", 0);
-      succeed_stat(g_testdir3);
-      show_statfs(g_testdir3);
-
-      /* Try rename() on the root directory. Should fail with EXDEV*/
-
-      fail_rename(g_target, g_testdir4, EXDEV);
-
-      /* Try rename() to an existing directory.  Should fail with EEXIST */
-
-      fail_rename(g_testdir2, g_testdir3, EEXIST);
-
-      /* Try rename() to a non-existing directory.  Should succeed */
-
-      fail_stat(g_testdir4, ENOENT);
-      succeed_rename(g_testdir3, g_testdir4);
-      show_directories("", 0);
-      fail_stat(g_testdir3, ENOENT);
-      succeed_stat(g_testdir4);
-      show_statfs(g_testdir4);
-
-      /* Try rename() of file.  Should work. */
-
-      fail_stat(g_testfile4, ENOENT);
-      succeed_rename(g_testfile3, g_testfile4);
-      show_directories("", 0);
-      fail_stat(g_testfile3, ENOENT);
-      succeed_stat(g_testfile4);
-      show_statfs(g_testfile4);
-
-      /* Make sure that we can still read the renamed file */
-
-      read_test_file(g_testfile4);
-
-      /* Unmount the file system */
-
-      printf("mount_main: Try unmount(%s)\n", g_target);
-
-      ret = umount(g_target);
-      if (ret != 0)
-        {
-          printf("mount_main: ERROR umount() failed, errno %d\n", errno);
-          g_nerrors++;
-        }
-
-      printf("mount_main: %d errors reported\n", g_nerrors);
-    }
-
-  fflush(stdout);
-  return 0;
-}
diff --git a/apps/examples/mount/ramdisk.c b/apps/examples/mount/ramdisk.c
deleted file mode 100644
index 83ef74e42..000000000
--- a/apps/examples/mount/ramdisk.c
+++ /dev/null
@@ -1,141 +0,0 @@
-/****************************************************************************
- * examples/mount/ramdisk.c
- *
- *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#include <nuttx/ramdisk.h>
-#include <nuttx/fs/mkfatfs.h>
-
-#include "mount.h"
-
-#ifndef CONFIG_EXAMPLES_MOUNT_DEVNAME
-
-/****************************************************************************
- * Private Definitions
- ****************************************************************************/
-
-#define BUFFER_SIZE (CONFIG_EXAMPLES_MOUNT_NSECTORS*CONFIG_EXAMPLES_MOUNT_SECTORSIZE)
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static struct fat_format_s g_fmt = FAT_FORMAT_INITIALIZER;
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
- 
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: create_ramdisk
- *
- * Description:
- *   Create a RAM disk of the specified size formatting with a FAT file
- *   system
- *
- * Input Parameters:
- *   None
- *
- * Return:
- *   Zero on success, a negated errno on failure.
- *
- ****************************************************************************/
-
-int create_ramdisk(void)
-{
-  char *pbuffer;
-  int ret;
-
-  /* Allocate a buffer to hold the file system image. */
-
-  pbuffer = (char*)malloc(BUFFER_SIZE);
-  if (!pbuffer)
-    {
-      printf("create_ramdisk: Failed to allocate ramdisk of size %d\n",
-             BUFFER_SIZE);
-      return -ENOMEM;
-    }
-
-  /* Register a RAMDISK device to manage this RAM image */
-
-  ret = ramdisk_register(CONFIG_EXAMPLES_MOUNT_RAMDEVNO,
-                    pbuffer,
-                    CONFIG_EXAMPLES_MOUNT_NSECTORS,
-                    CONFIG_EXAMPLES_MOUNT_SECTORSIZE,
-                    true);
-  if (ret < 0)
-    {
-      printf("create_ramdisk: Failed to register ramdisk at %s: %d\n",
-             g_source, -ret);
-      free(pbuffer);
-      return ret;
-    }
-
-  /* Create a FAT filesystem on the ramdisk */
-
-  ret = mkfatfs(g_source, &g_fmt);
-  if (ret < 0)
-    {
-      printf("create_ramdisk: Failed to create FAT filesystem on ramdisk at %s\n",
-             g_source);
-      /* free(pbuffer); -- RAM disk is registered */
-      return ret;
-    }
-
-  return 0;
-}
-#endif /* !CONFIG_EXAMPLES_MOUNT_DEVNAME */
diff --git a/apps/examples/nsh/Kconfig b/apps/examples/nsh/Kconfig
deleted file mode 100644
index 309aa925e..000000000
--- a/apps/examples/nsh/Kconfig
+++ /dev/null
@@ -1,15 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_NSH
-	bool "NuttShell (NSH) example"
-	default n
-	select NSH_LIBRARY
-	select SYSTEM_READLINE
-	---help---
-		Enable the NuttShell (NSH) example
-
-if EXAMPLES_NSH
-endif
diff --git a/apps/examples/nsh/Makefile b/apps/examples/nsh/Makefile
deleted file mode 100644
index ad687958f..000000000
--- a/apps/examples/nsh/Makefile
+++ /dev/null
@@ -1,98 +0,0 @@
-############################################################################
-# apps/examples/nsh/Makefile
-#
-#   Copyright (C) 2007-2008, 2010-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# NuttShell (NSH) Example
-
-ASRCS		=
-CSRCS		= nsh_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-MAXOPTIMIZATION = -Os
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-context:
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/nsh/nsh_main.c b/apps/examples/nsh/nsh_main.c
deleted file mode 100644
index d9bfc2018..000000000
--- a/apps/examples/nsh/nsh_main.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/****************************************************************************
- * examples/nsh/nsh_main.c
- *
- *   Copyright (C) 2007-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/stat.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <sched.h>
-#include <errno.h>
-
-#include <nuttx/arch.h>
-#if defined(CONFIG_FS_BINFS) && (CONFIG_BUILTIN)
-#include <nuttx/binfmt/builtin.h>
-#endif
-#if defined(CONFIG_LIBC_EXECFUNCS) && defined(CONFIG_EXECFUNCS_SYMTAB)
-#include <nuttx/binfmt/symtab.h>
-#endif
-
-#include <apps/nsh.h>
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/* The NSH telnet console requires networking support (and TCP/IP) */
-
-#ifndef CONFIG_NET
-#  undef CONFIG_NSH_TELNET
-#endif
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/* If posix_spawn() is enabled as required for CONFIG_NSH_FILE_APPS, then
- * a symbol table is needed by the internals of posix_spawn().  The symbol
- * table is needed to support ELF and NXFLAT binaries to dynamically link to
- * the base code.  However, if only the BINFS file system is supported, then
- * no Makefile is needed.
- *
- * This is a kludge to plug the missing file system in the case where BINFS
- * is used.  REVISIT:  This will, of course, be in the way if you want to
- * support ELF or NXFLAT binaries!
- */
-
-#if defined(CONFIG_LIBC_EXECFUNCS) && defined(CONFIG_EXECFUNCS_SYMTAB)
-const struct symtab_s CONFIG_EXECFUNCS_SYMTAB[1];
-#endif
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: nsh_main
- ****************************************************************************/
-
-int nsh_main(int argc, char *argv[])
-{
-  int exitval = 0;
-  int ret;
-
-  /* Call all C++ static constructors */
-
-#if defined(CONFIG_HAVE_CXX) && defined(CONFIG_HAVE_CXXINITIALIZE)
-  up_cxxinitialize();
-#endif
-
-  /* Make sure that we are using our symbol take */
-
-#if defined(CONFIG_LIBC_EXECFUNCS) && defined(CONFIG_EXECFUNCS_SYMTAB)
-  exec_setsymtab(CONFIG_EXECFUNCS_SYMTAB, 0);
-#endif
-
-  /* Register the BINFS file system */
-
-#if defined(CONFIG_FS_BINFS) && (CONFIG_BUILTIN)
-  ret = builtin_initialize();
-  if (ret < 0)
-    {
-     fprintf(stderr, "ERROR: builtin_initialize failed: %d\n", ret);
-     exitval = 1;
-   }
-#endif
-
-  /* Initialize the NSH library */
-
-  nsh_initialize();
-
-  /* If the Telnet console is selected as a front-end, then start the
-   * Telnet daemon.
-   */
-
-#ifdef CONFIG_NSH_TELNET
-  ret = nsh_telnetstart();
-  if (ret < 0)
-    {
-     /* The daemon is NOT running.  Report the the error then fail...
-      * either with the serial console up or just exiting.
-      */
-
-     fprintf(stderr, "ERROR: Failed to start TELNET daemon: %d\n", ret);
-     exitval = 1;
-   }
-#endif
-
-  /* If the serial console front end is selected, then run it on this thread */
-
-#ifdef CONFIG_NSH_CONSOLE
-  ret = nsh_consolemain(0, NULL);
-
-  /* nsh_consolemain() should not return.  So if we get here, something
-   * is wrong.
-   */
-
-  fprintf(stderr, "ERROR: nsh_consolemain() returned: %d\n", ret);
-  exitval = 1;
-#endif
-
-  return exitval;
-}
diff --git a/apps/examples/null/Kconfig b/apps/examples/null/Kconfig
deleted file mode 100644
index 1f19dfd2c..000000000
--- a/apps/examples/null/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_NULL
-	bool "NULL example"
-	default n
-	---help---
-		Enable the NULL example
-
-if EXAMPLES_NULL
-endif
diff --git a/apps/examples/null/Makefile b/apps/examples/null/Makefile
deleted file mode 100644
index 47ec4cdaf..000000000
--- a/apps/examples/null/Makefile
+++ /dev/null
@@ -1,96 +0,0 @@
-############################################################################
-# examples/null/Makefile
-#
-#   Copyright (C) 2007-2008, 2010-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# The smallest thing you can build -- the NULL example.
-
-ASRCS		=
-CSRCS		= null_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-context:
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/null/null_main.c b/apps/examples/null/null_main.c
deleted file mode 100644
index c4624bd1d..000000000
--- a/apps/examples/null/null_main.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/****************************************************************************
- * examples/null/null_main.c
- *
- *   Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name Gregory Nutt nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: null_main
- ****************************************************************************/
-
-int null_main(int argc, char *argv[])
-{
-  return 0;
-}
diff --git a/apps/examples/ostest/Kconfig b/apps/examples/ostest/Kconfig
deleted file mode 100644
index c3fe8f21d..000000000
--- a/apps/examples/ostest/Kconfig
+++ /dev/null
@@ -1,69 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_OSTEST
-	bool "OS test example"
-	default n
-	---help---
-		Enable the OS test example
-
-if EXAMPLES_OSTEST
-
-config EXAMPLES_OSTEST_BUILTIN
-	bool "NSH built-in application"
-	default y if NSH_LIBRARY
-	default n if !NSH_LIBRARY
-	---help---
-		Build the OS test example as an NSH built-in application.
-
-config EXAMPLES_OSTEST_LOOPS
-	int "OS test loop"
-	default 1
-	---help---
-		Used to control the number of executions of the test.  If undefined, the test
-		executes one time.  If defined to be zero, the test runs forever.
-
-config EXAMPLES_OSTEST_STACKSIZE
-	int "OS test stack size"
-	default 8192
-	---help---
-		Size of the stack used to create the ostest task.  Default is 8192.
-
-config EXAMPLES_OSTEST_NBARRIER_THREADS
-	int "Number of barrier threads"
-	default 8
-	---help---
-		Specifies the number of threads to create in the barrier test.  The default
-		is 8 but a smaller number may be needed on systems without sufficient memory
-		to start so many threads.
-
-config EXAMPLES_OSTEST_RR_RANGE
-	int "Round-robin test - end of search range"
-	default 10000
-	range 1 32767
-	---help---
-		During round-robin scheduling test two threads are created. Each of the threads
-		searches for prime numbers in the configurable range, doing that configurable
-		number of times.
-
-		This value specifies the end of search range and together with number of runs
-		allows to configure the length of this test - it should last at least a few
-		tens of seconds. Allowed values [1; 32767], default 10000
-
-config EXAMPLES_OSTEST_RR_RUNS
-	int "Round-robin test - number of runs"
-	default 10
-	range 1 32767
-	---help---
-		During round-robin scheduling test two threads are created. Each of the threads
-		searches for prime numbers in the configurable range, doing that configurable
-		number of times.
-
-		This value specifies the number of times the thread searches the range for
-		prime numbers and together with end of search range allows to configure the
-		length of this test - it should last at least a few tens of seconds. Allowed
-		values [1; 32767], default 10
-
-endif
diff --git a/apps/examples/ostest/Makefile b/apps/examples/ostest/Makefile
deleted file mode 100644
index 5a8ff7293..000000000
--- a/apps/examples/ostest/Makefile
+++ /dev/null
@@ -1,161 +0,0 @@
-############################################################################
-# apps/examples/ostest/Makefile
-#
-#   Copyright (C) 2007-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# ostest built-in application info
-
-APPNAME		= ostest
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# NuttX OS Test
-
-ASRCS		=
-CSRCS		= ostest_main.c dev_null.c
-
-ifeq ($(CONFIG_ARCH_FPU),y)
-CSRCS		+= fpu.c
-endif
-
-ifeq ($(CONFIG_SCHED_WAITPID),y)
-CSRCS		+= waitpid.c
-endif
-
-ifneq ($(CONFIG_DISABLE_PTHREAD),y)
-CSRCS		+= cancel.c cond.c mutex.c sem.c barrier.c
-ifneq ($(CONFIG_RR_INTERVAL),0)
-CSRCS		+= roundrobin.c
-endif # CONFIG_RR_INTERVAL
-ifeq ($(CONFIG_MUTEX_TYPES),y)
-CSRCS		+= rmutex.c
-endif # CONFIG_MUTEX_TYPES
-endif # CONFIG_DISABLE_PTHREAD
-
-ifneq ($(CONFIG_DISABLE_SIGNALS),y)
-CSRCS		+= sighand.c
-ifneq ($(CONFIG_DISABLE_PTHREAD),y)
-ifneq ($(CONFIG_DISABLE_CLOCK),y)
-CSRCS		+= timedwait.c
-endif # CONFIG_DISABLE_CLOCK
-endif # CONFIG_DISABLE_PTHREAD
-endif # CONFIG_DISABLE_SIGNALS
-
-ifneq ($(CONFIG_DISABLE_MQUEUE),y)
-ifneq ($(CONFIG_DISABLE_PTHREAD),y)
-CSRCS		+= mqueue.c 
-ifneq ($(CONFIG_DISABLE_CLOCK),y)
-CSRCS		+= timedmqueue.c 
-endif # CONFIG_DISABLE_CLOCK
-endif # CONFIG_DISABLE_PTHREAD
-endif # CONFIG_DISABLE_MQUEUE
-
-ifneq ($(CONFIG_DISABLE_POSIX_TIMERS),y)
-CSRCS		+= posixtimer.c
-endif
-
-ifeq ($(CONFIG_ARCH_HAVE_VFORK),y)
-CSRCS		+= vfork.c
-endif
-
-ifneq ($(CONFIG_DISABLE_SIGNALS),y)
-ifneq ($(CONFIG_DISABLE_PTHREAD),y)
-ifeq ($(CONFIG_PRIORITY_INHERITANCE),y)
-CSRCS		+= prioinherit.c
-endif # CONFIG_PRIORITY_INHERITANCE
-endif # CONFIG_DISABLE_PTHREAD
-endif # CONFIG_DISABLE_SIGNALS
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_EXAMPLES_OSTEST_BUILTIN),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/ostest/barrier.c b/apps/examples/ostest/barrier.c
deleted file mode 100644
index e66496f7b..000000000
--- a/apps/examples/ostest/barrier.c
+++ /dev/null
@@ -1,208 +0,0 @@
-/****************************************************************************
- * examples/ostest/barrier.c
- *
- *   Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <stdio.h>
-#include <unistd.h>
-#include <pthread.h>
-
-#include "ostest.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#define HALF_SECOND 500000L
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static pthread_barrier_t barrier;
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: barrier_func
- ****************************************************************************/
-
-static void *barrier_func(void *parameter)
-{
-  int id = (int)parameter;
-  int status;
-
-  printf("barrier_func: Thread %d started\n",  id);
-#ifndef CONFIG_DISABLE_SIGNALS
-  usleep(HALF_SECOND);
-#endif
-
-  /* Wait at the barrier until all threads are synchronized. */
-
-  printf("barrier_func: Thread %d calling pthread_barrier_wait()\n",
-         id);
-  FFLUSH();
-  status = pthread_barrier_wait(&barrier);
-  if (status == 0)
-    {
-      printf("barrier_func: Thread %d, back with "
-             "status=0 (I am not special)\n",
-             id, status);
-    }
-  else if (status == PTHREAD_BARRIER_SERIAL_THREAD)
-    {
-      printf("barrier_func: Thread %d, back with "
-             "status=PTHREAD_BARRIER_SERIAL_THREAD (I AM SPECIAL)\n",
-             id, status);
-    }
-  else
-    {
-      printf("barrier_func: ERROR thread %d could not get semaphore value\n",
-             id);
-    }
-  FFLUSH();
-
-#ifndef CONFIG_DISABLE_SIGNALS
-  usleep(HALF_SECOND);
-#endif
-  printf("barrier_func: Thread %d done\n",  id);
-  FFLUSH();
-  return NULL;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: barrier_test
- ****************************************************************************/
-
-void barrier_test(void)
-{
-  pthread_t barrier_thread[CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS];
-  pthread_addr_t result;
-  pthread_attr_t attr;
-  pthread_barrierattr_t barrierattr;
-  int status;
-  int i;
-
-  printf("barrier_test: Initializing barrier\n");
-
-  status = pthread_barrierattr_init(&barrierattr);
-  if (status != OK)
-    {
-      printf("barrier_test: pthread_barrierattr_init failed, status=%d\n",
-             status);
-    }
-
-  status = pthread_barrier_init(&barrier, &barrierattr,
-                                CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS);
-  if (status != OK)
-    {
-      printf("barrier_test: pthread_barrierattr_init failed, status=%d\n",
-             status);
-    }
-
-  /* Create the barrier */
-
-  status = pthread_barrierattr_init(&barrierattr);
-
-  /* Start CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS thread instances */
-
-  status = pthread_attr_init(&attr);
-  if (status != OK)
-    {
-      printf("barrier_test: pthread_attr_init failed, status=%d\n",
-              status);
-    }
-
-  for (i = 0; i < CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS; i++)
-    {
-      status = pthread_create(&barrier_thread[i], &attr, barrier_func,
-                              (pthread_addr_t)i);
-      if (status != 0)
-        {
-          printf("barrier_test: Error in thread %d create, status=%d\n",
-                 i, status);
-          printf("barrier_test: Test aborted with waiting threads\n");
-          goto abort_test;
-        }
-      else
-        {
-          printf("barrier_test: Thread %d created\n", i);
-        }
-    }
-  FFLUSH();
-
-  /* Wait for all thread instances to complete */
-
-  for (i = 0; i < CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS; i++)
-    {
-      status = pthread_join(barrier_thread[i], &result);
-      if (status != 0)
-        {
-          printf("barrier_test: Error in thread %d join, status=%d\n",
-                 i, status);
-        }
-      else
-        {
-          printf("barrier_test: Thread %d completed with result=%p\n",
-                 i, result);
-        }
-    }
-
-  /* Destroy the barrier */
-
-abort_test:
-  status = pthread_barrier_destroy(&barrier);
-  if (status != OK)
-    {
-      printf("barrier_test: pthread_barrier_destroy failed, status=%d\n",
-             status);
-    }
-
-  status = pthread_barrierattr_destroy(&barrierattr);
-  if (status != OK)
-    {
-      printf("barrier_test: pthread_barrierattr_destroy failed, status=%d\n",
-             status);
-    }
-  FFLUSH();
-}
diff --git a/apps/examples/ostest/cancel.c b/apps/examples/ostest/cancel.c
deleted file mode 100644
index 11981d819..000000000
--- a/apps/examples/ostest/cancel.c
+++ /dev/null
@@ -1,333 +0,0 @@
-/***********************************************************************
- * examples/ostest/cancel.c
- *
- *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-#include <stdio.h>
-#include <time.h>
-#include <pthread.h>
-#include <errno.h>
-#include "ostest.h"
-
-static pthread_mutex_t mutex;
-static pthread_cond_t  cond;
-
-static void *thread_waiter(void *parameter)
-{
-  int status;
-
-  /* Take the mutex */
-
-  printf("thread_waiter: Taking mutex\n");
-  status = pthread_mutex_lock(&mutex);
-  if (status != 0)
-    {
-       printf("thread_waiter: ERROR pthread_mutex_lock failed, status=%d\n", status);
-    }
-
-  printf("thread_waiter: Starting wait for condition\n");
-
-  /* Are we a non-cancelable thread?   Yes, set the non-cancelable state */
-
-  if (!parameter)
-    {
-      printf("thread_waiter: Setting non-cancelable\n");
-      status = pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
-      if (status != 0)
-        {
-           printf("thread_waiter: ERROR pthread_setcancelstate failed, status=%d\n", status);
-        }
-    }
-
-  /* The wait -- we will never awaken from this. */
-
-  status = pthread_cond_wait(&cond, &mutex);
-  if (status != 0)
-    {
-      printf("thread_waiter: ERROR pthread_cond_wait failed, status=%d\n", status);
-    }
-
-  /* Release the mutex */
-
-  printf("thread_waiter: Releasing mutex\n");
-  status = pthread_mutex_unlock(&mutex);
-  if (status != 0)
-    {
-      printf("thread_waiter: ERROR pthread_mutex_unlock failed, status=%d\n", status);
-    }
-
-  /* Set the cancelable state */
-
-  printf("thread_waiter: Setting cancelable\n");
-  status = pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
-  if (status != 0)
-    {
-      printf("thread_waiter: ERROR pthread_setcancelstate failed, status=%d\n", status);
-    }
-
-  printf("thread_waiter: Exit with status 0x12345678\n");
-  pthread_exit((pthread_addr_t)0x12345678);
-  return NULL;
-}
-
-static void start_thread(pthread_t *waiter, int cancelable)
-{
-  pthread_attr_t attr;
-  int status;
-
-  /* Initialize the mutex */
-
-  printf("start_thread: Initializing mutex\n");
-  status = pthread_mutex_init(&mutex, NULL);
-  if (status != 0)
-    {
-      printf("start_thread: ERROR pthread_mutex_init failed, status=%d\n", status);
-    }
-
-  /* Initialize the condition variable */
-
-  printf("start_thread: Initializing cond\n");
-  status = pthread_cond_init(&cond, NULL);
-  if (status != 0)
-    {
-      printf("start_thread: ERROR pthread_cond_init failed, status=%d\n", status);
-    }
-
-  /* Set up attributes */
-
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("start_thread: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  status = pthread_attr_setstacksize(&attr, STACKSIZE);
-  if (status != 0)
-    {
-      printf("start_thread: pthread_attr_setstacksize failed, status=%d\n", status);
-    }
-
-  /* Start the waiter thread  */
-
-  printf("start_thread: Starting thread\n");
-  status = pthread_create(waiter, &attr, thread_waiter, (pthread_addr_t)cancelable);
-  if (status != 0)
-    {
-      printf("start_thread: ERROR pthread_create failed, status=%d\n", status);
-    }
-
-  /* Make sure that the waiter thread gets a chance to run */
-
-  printf("start_thread: Yielding\n");
-  pthread_yield();
-}
-
-static void restart_thread(pthread_t *waiter, int cancelable)
-{
-  int status;
-
-  /* Destroy the condition variable */
-
-  printf("restart_thread: Destroying cond\n");
-  status = pthread_cond_destroy(&cond);
-  if (status != 0)
-    {
-      printf("restart_thread: ERROR pthread_cond_destroy failed, status=%d\n", status);
-    }
-
-  /* Destroy the mutex */
-
-  printf("restart_thread: Destroying mutex\n");
-  status = pthread_cond_destroy(&cond);
-  if (status != 0)
-    {
-      printf("restart_thread: ERROR pthread_mutex_destroy failed, status=%d\n", status);
-    }
-
-  /* Then restart the thread */
-
-  printf("restart_thread: Re-starting thread\n");
-  start_thread(waiter, cancelable);
-}
-
-void cancel_test(void)
-{
-  pthread_t waiter;
-  void *result;
-  int status;
-
-  /* Test 1: Normal Cancel *********************************************/
-  /* Start the waiter thread  */
-
-  printf("cancel_test: Test 1: Normal Cancelation\n");
-  printf("cancel_test: Starting thread\n");
-  start_thread(&waiter, 1);
-
-  /* Then cancel it.  It should be in the pthread_cond_wait now */
-
-  printf("cancel_test: Canceling thread\n");
-  status = pthread_cancel(waiter);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_cancel failed, status=%d\n", status);
-    }
-
-  /* Then join to the thread to pick up the result (if we don't do
-   * we will have a memory leak!)
-   */
-
-  printf("cancel_test: Joining\n");
-  status = pthread_join(waiter, &result);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_join failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("cancel_test: waiter exited with result=%p\n", result);
-      if (result != PTHREAD_CANCELED)
-        {
-          printf("cancel_test: ERROR expected result=%p\n", PTHREAD_CANCELED);
-        }
-      else
-        {
-          printf("cancel_test: PASS thread terminated with PTHREAD_CANCELED\n");
-        }
-    }
-
-  /* Test 2: Cancel Detached Thread ************************************/
-
-  printf("cancel_test: Test 2: Cancelation of detached thread\n");
-  printf("cancel_test: Re-starting thread\n");
-  restart_thread(&waiter, 1);
-
-  /* Detach the thread */
-
-  status = pthread_detach(waiter);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_detach, status=%d\n", status);
-    }
-
-  /* Then cancel it.  It should be in the pthread_cond_wait now */
-
-  printf("cancel_test: Canceling thread\n");
-  status = pthread_cancel(waiter);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_cancel failed, status=%d\n", status);
-    }
-
-  /* Join should now fail */
-
-  printf("cancel_test: Joining\n");
-  status = pthread_join(waiter, &result);
-  if (status == 0)
-    {
-      printf("cancel_test: ERROR pthread_join succeeded\n");
-    }
-  else if (status != ESRCH)
-    {
-      printf("cancel_test: ERROR pthread_join failed but with wrong status=%d\n", status);
-    }
-  else
-    {
-      printf("cancel_test: PASS pthread_join failed with status=ESRCH\n");
-    }
-
-  /* Test 3: Non-cancelable threads ************************************/
-
-  printf("cancel_test: Test 3: Non-cancelable threads\n");
-  printf("cancel_test: Re-starting thread (non-cancelable)\n");
-  restart_thread(&waiter, 0);
-
-  /* Then cancel it.  It should be in the pthread_cond_wait now.  The
-   * behavior here is non-standard:  when the thread is at a cancelation
-   * point, it should be cancelable, even when cancelation is disable.
-   *
-   * The cancelation should succeed, because the cancelation is pending.
-   */
-
-  printf("cancel_test: Canceling thread\n");
-  status = pthread_cancel(waiter);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_cancel failed, status=%d\n", status);
-    }
-
-  /* Signal the thread.  It should wake up and restore the cancelable state.
-   * When the cancelable state is re-enabled, the thread should be canceled.
-   */
-
-  status = pthread_mutex_lock(&mutex);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_mutex_lock failed, status=%d\n", status);
-    }
-
-  status = pthread_cond_signal(&cond);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_cond_signal failed, status=%d\n", status);
-    }
-
-  status = pthread_mutex_unlock(&mutex);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_mutex_unlock failed, status=%d\n", status);
-    }
-
-  /* Then join to the thread to pick up the result (if we don't do
-   * we will have a memory leak!)
-   */
-
-  printf("cancel_test: Joining\n");
-  status = pthread_join(waiter, &result);
-  if (status != 0)
-    {
-      printf("cancel_test: ERROR pthread_join failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("cancel_test: waiter exited with result=%p\n", result);
-      if (result != PTHREAD_CANCELED)
-        {
-          printf("cancel_test: ERROR expected result=%p\n", PTHREAD_CANCELED);
-        }
-      else
-        {
-          printf("cancel_test: PASS thread terminated with PTHREAD_CANCELED\n");
-        }
-    }
-
-}
diff --git a/apps/examples/ostest/cond.c b/apps/examples/ostest/cond.c
deleted file mode 100644
index 96468c3e4..000000000
--- a/apps/examples/ostest/cond.c
+++ /dev/null
@@ -1,294 +0,0 @@
-/***********************************************************************
- * cond.c
- *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-#include <stdio.h>
-#include <pthread.h>
-#include <unistd.h>
-#include "ostest.h"
-
-#ifndef NULL
-# define NULL (void*)0
-#endif
-
-static volatile enum { RUNNING, MUTEX_WAIT, COND_WAIT} waiter_state;
-
-static pthread_mutex_t mutex;
-static pthread_cond_t  cond;
-static volatile int data_available = 0;
-static int waiter_nloops = 0;
-static int waiter_waits = 0;
-static int waiter_nerrors = 0;
-static int signaler_nloops = 0;
-static int signaler_already = 0;
-static int signaler_state = 0;
-static int signaler_nerrors = 0;
-
-static void *thread_waiter(void *parameter)
-{
-  int status;
-
-  printf("waiter_thread: Started\n");
-
-  for(;;)
-    {
-      /* Take the mutex */
-
-      waiter_state = MUTEX_WAIT;
-      status       = pthread_mutex_lock(&mutex);
-      waiter_state = RUNNING;
-
-      if (status != 0)
-        {
-          printf("waiter_thread: ERROR pthread_mutex_lock failed, status=%d\n", status);
-          waiter_nerrors++;
-        }
-
-      /* Check if data is available -- if data is not available then
-       * wait for it
-       */
-
-      if (!data_available)
-        {
-           /* We are higher priority than the signaler thread so the
-            * only time that the signaler thread will have a chance to run is when
-            * we are waiting for the condition variable.  In this case, pthread_cond_wait
-            * will automatically release the mutex for the signaler (then re-acquire
-            * the mutex before returning.
-            */
-
-           waiter_state = COND_WAIT;
-           status       = pthread_cond_wait(&cond, &mutex);
-           waiter_state = RUNNING;
-
-           if (status != 0)
-             {
-               printf("waiter_thread: ERROR pthread_cond_wait failed, status=%d\n", status);
-               waiter_nerrors++;
-             }
-           waiter_waits++;
-        }
-
-      /* Now data should be available */
-
-      if (!data_available)
-        {
-          printf("waiter_thread: ERROR data not available after wait\n");
-          waiter_nerrors++;
-        }
-
-      /* Clear data available */
-
-      data_available = 0;
-
-      /* Release the mutex */
-
-      status = pthread_mutex_unlock(&mutex);
-      if (status != 0)
-        {
-          printf("waiter_thread: ERROR waiter: pthread_mutex_unlock failed, status=%d\n", status);
-          waiter_nerrors++;
-        }
-
-      waiter_nloops++;
-    }
-  return NULL;
-}
-
-static void *thread_signaler(void *parameter)
-{
-  int status;
-  int i;
-
-  printf("thread_signaler: Started\n");
-  for (i = 0; i < 32; i++)
-    {
-      /* Take the mutex.  The waiter is higher priority and should
-       * run until it waits for the condition.  So, at this point
-       * signaler should be waiting for the condition.
-       */
-
-      status = pthread_mutex_lock(&mutex);
-      if (status != 0)
-        {
-          printf("thread_signaler: ERROR pthread_mutex_lock failed, status=%d\n", status);
-          signaler_nerrors++;
-        }
-
-      /* Verify the state */
-
-      if (waiter_state != COND_WAIT)
-        {
-          printf("thread_signaler: ERROR waiter state = %d != COND_WAITING\n", waiter_state);
-          signaler_state++;
-        }
-
-      if (data_available)
-        {
-          printf("thread_signaler: ERROR data already available, waiter_state=%d\n", waiter_state);
-          signaler_already++;
-        }
-
-      /* Set data available and signal the waiter */
-
-      data_available = 1;
-      status = pthread_cond_signal(&cond);
-      if (status != 0)
-        {
-          printf("thread_signaler: ERROR pthread_cond_signal failed, status=%d\n", status);
-          signaler_nerrors++;
-        }
-
-     /* Release the mutex */
-
-      status = pthread_mutex_unlock(&mutex);
-      if (status != 0)
-        {
-          printf("thread_signaler: ERROR pthread_mutex_unlock failed, status=%d\n", status);
-          signaler_nerrors++;
-        }
-
-      signaler_nloops++;
-    }
-
-  printf("thread_signaler: Terminating\n");
-  pthread_exit(NULL);
-  return NULL; /* Non-reachable -- needed for some compilers */
-}
-
-void cond_test(void)
-{
-  pthread_t waiter;
-  pthread_t signaler;
-  pthread_attr_t attr;
-#ifdef SDCC
-  pthread_addr_t result;
-#endif
-  struct sched_param sparam;
-  int prio_min;
-  int prio_max;
-  int prio_mid;
-  int status;
-
-  /* Initialize the mutex */
-
-  printf("cond_test: Initializing mutex\n");
-  status = pthread_mutex_init(&mutex, NULL);
-  if (status != 0)
-    {
-      printf("cond_test: ERROR pthread_mutex_init failed, status=%d\n", status);
-    }
-
-  /* Initialize the condition variable */
-
-  printf("cond_test: Initializing cond\n");
-  status = pthread_cond_init(&cond, NULL);
-  if (status != 0)
-    {
-      printf("cond_test: ERROR pthread_condinit failed, status=%d\n", status);
-    }
-
-  /* Start the waiter thread at higher priority */
-
-  printf("cond_test: Starting waiter\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("cond_test: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  prio_min = sched_get_priority_min(SCHED_FIFO);
-  prio_max = sched_get_priority_max(SCHED_FIFO);
-  prio_mid = (prio_min + prio_max) / 2;
-
-  sparam.sched_priority = prio_mid;
-  status = pthread_attr_setschedparam(&attr,&sparam);
-  if (status != OK)
-    {
-      printf("cond_test: pthread_attr_setschedparam failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("cond_test: Set thread 1 priority to %d\n", sparam.sched_priority);
-    }
-
-  status = pthread_create(&waiter, &attr, thread_waiter, NULL);
-  if (status != 0)
-    {
-      printf("cond_test: pthread_create failed, status=%d\n", status);
-    }
-
-  printf("cond_test: Starting signaler\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("cond_test: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  sparam.sched_priority = (prio_min + prio_mid) / 2;
-  status = pthread_attr_setschedparam(&attr,&sparam);
-  if (status != OK)
-    {
-      printf("cond_test: pthread_attr_setschedparam failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("cond_test: Set thread 2 priority to %d\n", sparam.sched_priority);
-    }
-
-  status = pthread_create(&signaler, &attr, thread_signaler, NULL);
-  if (status != 0)
-    {
-      printf("cond_test: pthread_create failed, status=%d\n", status);
-    }
-
-  /* Wait for the threads to stop */
-
-#ifdef SDCC
-  pthread_join(signaler, &result);
-#else
-  pthread_join(signaler, NULL);
-#endif
-  printf("cond_test: signaler terminated, now cancel the waiter\n");
-  pthread_detach(waiter);
-  pthread_cancel(waiter);
-
-  printf("cond_test: \tWaiter\tSignaler\n");
-  printf("cond_test: Loops\t%d\t%d\n", waiter_nloops, signaler_nloops);
-  printf("cond_test: Errors\t%d\t%d\n", waiter_nerrors, signaler_nerrors);
-  printf("cond_test:\n");
-  printf("cond_test: %d times, waiter did not have to wait for data\n", waiter_nloops - waiter_waits);
-  printf("cond_test: %d times, data was already available when the signaler run\n", signaler_already);
-  printf("cond_test: %d times, the waiter was in an unexpected state when the signaler ran\n", signaler_state);
-}
diff --git a/apps/examples/ostest/dev_null.c b/apps/examples/ostest/dev_null.c
deleted file mode 100644
index 34508d05e..000000000
--- a/apps/examples/ostest/dev_null.c
+++ /dev/null
@@ -1,92 +0,0 @@
-/****************************************************************************
- * examples/ostest/dev_null.c
- *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include "ostest.h"
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-#if CONFIG_NFILE_DESCRIPTORS > 0
-
-static FAR char buffer[1024];
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-int dev_null(void)
-{
-  int nbytes;
-  int fd;
-
-  fd = open("/dev/null", O_RDWR);
-  if (fd < 0)
-    {
-      printf("dev_null: ERROR Failed to open /dev/null\n");
-      return -1;
-    }
-
-  nbytes = read(fd, buffer, 1024);
-  if (nbytes < 0)
-    {
-      printf("dev_null: ERROR Failed to read from /dev/null\n");
-      close(fd);
-      return -1;
-    }
-  printf("dev_null: Read %d bytes from /dev/null\n", nbytes);
-
-  nbytes = write(fd, buffer, 1024);
-  if (nbytes < 0)
-    {
-      printf("dev_null: ERROR Failed to write to /dev/null\n");
-      close(fd);
-      return -1;
-    }
-  printf("dev_null: Wrote %d bytes to /dev/null\n", nbytes);
-
-  close(fd);
-  return 0;
-}
-
-#endif /*CONFIG_NFILE_DESCRIPTORS */
diff --git a/apps/examples/ostest/fpu.c b/apps/examples/ostest/fpu.c
deleted file mode 100644
index 89a1034ce..000000000
--- a/apps/examples/ostest/fpu.c
+++ /dev/null
@@ -1,344 +0,0 @@
-/***********************************************************************
- * apps/examples/ostest/fpu.c
- *
- *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-/***********************************************************************
- * Included Files
- ***********************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/wait.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sched.h>
-
-#include "ostest.h"
-
-/***********************************************************************
- * Pre-processor definitions
- ***********************************************************************/
-/* Configuration *******************************************************/
-
-#undef HAVE_FPU
-#ifdef CONFIG_ARCH_FPU
-#  if defined(CONFIG_EXAMPLES_OSTEST_FPUSIZE) && defined(CONFIG_SCHED_WAITPID) && !defined(CONFIG_DISABLE_SIGNALS)
-#    define HAVE_FPU 1
-#  else
-#    ifndef CONFIG_EXAMPLES_OSTEST_FPUSIZE
-#      warning "FPU test not built; CONFIG_EXAMPLES_OSTEST_FPUSIZE not defined"
-#    endif
-#    ifndef CONFIG_SCHED_WAITPID
-#      warning "FPU test not built; CONFIG_SCHED_WAITPID not defined"
-#    endif
-#    ifdef CONFIG_DISABLE_SIGNALS
-#      warning "FPU test not built; CONFIG_DISABLE_SIGNALS defined"
-#    endif
-#  endif
-#endif
-
-#ifdef HAVE_FPU
-
-#ifndef CONFIG_EXAMPLES_OSTEST_FPULOOPS
-#  define CONFIG_EXAMPLES_OSTEST_FPULOOPS 16
-#endif
-
-#ifndef CONFIG_EXAMPLES_OSTEST_FPUMSDELAY
-#  define CONFIG_EXAMPLES_OSTEST_FPUMSDELAY 750
-#endif
-
-#ifndef CONFIG_EXAMPLES_OSTEST_FPUPRIORITY
-#  define CONFIG_EXAMPLES_OSTEST_FPUPRIORITY SCHED_PRIORITY_DEFAULT
-#endif
-
-#ifndef CONFIG_EXAMPLES_OSTEST_FPUSTACKSIZE
-#  define CONFIG_EXAMPLES_OSTEST_FPUSTACKSIZE 2048
-#endif
-
-/* Other defintions ****************************************************/
-/* We'll keep all data using 32-bit values only to force 32-bit alignment.
- * This logic has no real notion of the underlying representation.
- */
-
-#define FPU_WORDSIZE ((CONFIG_EXAMPLES_OSTEST_FPUSIZE+3)>>2)
-#define FPU_NTHREADS  2
-
-#ifndef NULL
-# define NULL (void*)0
-#endif
-
-/***********************************************************************
- * External Dependencies
- ***********************************************************************/
-/* This test is very dependent on support provided by the chip/board-
- * layer logic.  In particular, it expects the following functions
- * to be provided:
- */
-
-/* Given an array of size CONFIG_EXAMPLES_OSTEST_FPUSIZE, this function
- * will return the current FPU registers.
- */
-
-extern void arch_getfpu(FAR uint32_t *fpusave);
-
-/* Given two arrays of size CONFIG_EXAMPLES_OSTEST_FPUSIZE this
- * function will compare them and return true if they are identical.
- */
-
-extern bool arch_cmpfpu(FAR const uint32_t *fpusave1,
-                        FAR const uint32_t *fpusave2);
-
-/***********************************************************************
- * Private Types
- ***********************************************************************/
-
-struct fpu_threaddata_s
-{
-  uint32_t save1[FPU_WORDSIZE];
-  uint32_t save2[FPU_WORDSIZE];
-
-  /* These are just dummy values to force the compiler to do the
-   * requested floating point computations without the nonsense
-   * computations being optimized away.
-   */
-
-  volatile float sp1;
-  volatile float sp2;
-  volatile float sp3;
-  volatile float sp4;
-
-  volatile float dp1;
-  volatile float dp2;
-  volatile float dp3;
-  volatile float dp4;
-};
-
-/***********************************************************************
- * Private Data
- ***********************************************************************/
-
-static uint8_t g_fpuno;
-/* static */ struct fpu_threaddata_s g_fputhread[FPU_NTHREADS];
-
-/***********************************************************************
- * Private Functions
- ***********************************************************************/
-
-static void fpu_dump(FAR uint32_t *buffer, FAR const char *msg)
-{
-  int i, j, k;
-
-  printf("%s (%p):\n", msg, buffer);
-  for (i = 0; i < FPU_WORDSIZE; i += 8)
-    {
-      printf("    %04x: ", i);
-      for (j = 0; j < 8; j++)
-        {
-          k = i + j;
-
-          if (k < FPU_WORDSIZE)
-            {
-              printf("%08x ", buffer[k]);
-            }
-          else
-            {
-              printf("\n");
-              break;
-            }
-        }
-      printf("\n");
-   }
-}
-
-static int fpu_task(int argc, char *argv[])
-{
-  FAR struct fpu_threaddata_s *fpu;
-  register float sp1;
-  register float sp2;
-  register float sp3;
-  register float sp4;
-  register double dp1;
-  register double dp2;
-  register double dp3;
-  register double dp4;
-
-  int id;
-  int i;
-
-  /* Which are we? */
-
-  sched_lock();
-  fpu = &g_fputhread[g_fpuno];
-  id  = (int)(++g_fpuno);
-  sched_unlock();
-
-  /* Seed the flowing point values */
-
-  sp1 = (float)id;
-  dp1 = (double)id;
-
-  for (i = 0; i < CONFIG_EXAMPLES_OSTEST_FPULOOPS; i++)
-    {
-      printf("FPU#%d: pass %d\n", id, i+1);
-      fflush(stdout);
-
-      /* Set the FPU register save arrays to a known-but-illogical values so 
-       * that we can verify that reading of the registers actually occurs.
-       */
-
-      memset(fpu->save1, 0xff, FPU_WORDSIZE * sizeof(uint32_t));
-      memset(fpu->save2, 0xff, FPU_WORDSIZE * sizeof(uint32_t));
-
-      /* Prevent context switches while we set up some stuff */
-
-      sched_lock();
-
-      /* Do some trivial floating point operations that should cause some
-       * changes to floating point registers.  First, some single preceision
-       * nonsense.
-       */
-
-      sp4 = (float)3.14159 * sp1;    /* Multiple by Pi */
-      sp3 = sp4 + (float)1.61803;    /* Add the golden ratio */
-      sp2 = sp3 / (float)2.71828;    /* Divide by Euler's constant */
-      sp1 = sp2 + (float)1.0;        /* Plus one */
-
-      fpu->sp1 = sp1;                /* Make the compiler believe that somebody cares about the result */
-      fpu->sp2 = sp2;
-      fpu->sp3 = sp3;
-      fpu->sp4 = sp4;
-
-      /* Again using double precision */
-
-      dp4 = (double)3.14159 * dp1;   /* Multiple by Pi */
-      dp3 = dp4 + (double)1.61803;   /* Add the golden ratio */
-      dp2 = dp3 / (double)2.71828;   /* Divide by Euler's constant */
-      dp1 = dp2 + (double)1.0;       /* Plus one */
-
-      fpu->dp1 = dp1;                /* Make the compiler believe that somebody cares about the result */
-      fpu->dp2 = dp2;
-      fpu->dp3 = dp3;
-      fpu->dp4 = dp4;
-
-      /* Sample the floating point registers */
-
-      arch_getfpu(fpu->save1);
-
-      /* Re-read and verify the FPU registers consistently without corruption */
-
-      arch_getfpu(fpu->save2);
-      if (!arch_cmpfpu(fpu->save1, fpu->save2))
-        {
-          printf("ERROR FPU#%d: save1 and save2 do not match\n", id);
-          fpu_dump(fpu->save1, "Values after math operations (save1)");
-          fpu_dump(fpu->save2, "Values after verify re-read (save2)");
-          return EXIT_FAILURE;
-        }
-
-      /* Now unlock and sleep for a while -- this should result in some context switches */
-
-      sched_unlock();
-      usleep(CONFIG_EXAMPLES_OSTEST_FPUMSDELAY * 1000);
-
-      /* Several context switches should have occurred.  Now verify that the floating
-       * point registers are still correctly set.
-       */
-
-      arch_getfpu(fpu->save2);
-      if (!arch_cmpfpu(fpu->save1, fpu->save2))
-        {
-          printf("ERROR FPU#%d: save1 and save2 do not match\n", id);
-          fpu_dump(fpu->save1, "Values before waiting (save1)");
-          fpu_dump(fpu->save2, "Values after waiting (save2)");
-          return EXIT_FAILURE;
-        }
-    }
-
-  printf("FPU#%d: Succeeded\n", id);
-  fflush(stdout);
-  return EXIT_SUCCESS;
-}
-#endif /* HAVE_FPU */
-
-/***********************************************************************
- * Private Functions
- ***********************************************************************/
-
-void fpu_test(void)
-{
-#ifdef HAVE_FPU
-  pid_t task1;
-  pid_t task2;
-  int statloc;
-
-  /* Start two two tasks */
-
-  g_fpuno = 0;
-  printf("Starting task FPU#1\n");
-  task1 = TASK_CREATE("FPU#1", CONFIG_EXAMPLES_OSTEST_FPUPRIORITY, CONFIG_EXAMPLES_OSTEST_FPUSTACKSIZE, fpu_task, NULL);
-  if (task1 < 0)
-    {
-      printf("fpu_test: ERROR Failed to start task FPU#1\n");
-    }
-  else
-    {
-      printf("fpu_test: Started task FPU#1 at PID=%d\n", task1);
-    }
-  fflush(stdout);
-  usleep(250);
-
-  printf("Starting task FPU#2\n");
-  task2 = TASK_CREATE("FPU#2", CONFIG_EXAMPLES_OSTEST_FPUPRIORITY, CONFIG_EXAMPLES_OSTEST_FPUSTACKSIZE, fpu_task, NULL);
-  if (task2 < 0)
-    {
-      printf("fpu_test: ERROR Failed to start task FPU#1\n");
-    }
-  else
-    {
-      printf("fpu_test: Started task FPU#2 at PID=%d\n", task2);
-    }
-
-  /* Wait for each task to complete */
-
-  fflush(stdout);
-  (void)waitpid(task1, &statloc, 0);
-  (void)waitpid(task2, &statloc, 0);
-
-#else
-  printf("fpu_test: ERROR: The FPU test is not properly configured\n");
-#endif
-  printf("fpu_test: Returning\n");
-}
diff --git a/apps/examples/ostest/mqueue.c b/apps/examples/ostest/mqueue.c
deleted file mode 100644
index 39ef76a53..000000000
--- a/apps/examples/ostest/mqueue.c
+++ /dev/null
@@ -1,394 +0,0 @@
-/**************************************************************************
- * apps/examples/ostest/mqueue.c
- *
- *   Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- **************************************************************************/
-
-/**************************************************************************
- * Included Files
- **************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <mqueue.h>
-#include <sched.h>
-#include <errno.h>
-
-#include "ostest.h"
-
-/**************************************************************************
- * Private Definitions
- **************************************************************************/
-
-#define TEST_MESSAGE        "This is a test and only a test"
-#if defined(SDCC) || defined(__ZILOG__)
-   /* Cannot use strlen in array size */
-
-#  define TEST_MSGLEN         (31)
-#else
-   /* Message lenght is the size of the message plus the null terminator */
-
-#  define TEST_MSGLEN         (strlen(TEST_MESSAGE)+1)
-#endif
-
-#define TEST_SEND_NMSGS     (10)
-#ifndef CONFIG_DISABLE_SIGNALS
-# define TEST_RECEIVE_NMSGS (11)
-#else
-# define TEST_RECEIVE_NMSGS (10)
-#endif
-
-#define HALF_SECOND_USEC_USEC 500000L
-
-/**************************************************************************
- * Private Types
- **************************************************************************/
-
-/**************************************************************************
- * Private Function Prototypes
- **************************************************************************/
-
-/**************************************************************************
- * Global Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-/**************************************************************************
- * Public Functions
- **************************************************************************/
-
-static void *sender_thread(void *arg)
-{
-  mqd_t mqfd;
-  char msg_buffer[TEST_MSGLEN];
-  struct mq_attr attr;
-  int status = 0;
-  int nerrors = 0;
-  int i;
-
-  printf("sender_thread: Starting\n");
-
-  /* Fill in attributes for message queue */
-
-  attr.mq_maxmsg  = 20;
-  attr.mq_msgsize = TEST_MSGLEN;
-  attr.mq_flags   = 0;
-
-  /* Set the flags for the open of the queue.
-   * Make it a blocking open on the queue, meaning it will block if
-   * this process tries to send to the queue and the queue is full.
-   *
-   *   O_CREAT - the queue will get created if it does not already exist.
-   *   O_WRONLY - we are only planning to write to the queue.
-   *
-   * Open the queue, and create it if the receiving process hasn't
-   * already created it.
-   */
-
-  mqfd = mq_open("testmq", O_WRONLY|O_CREAT, 0666, &attr);
-  if (mqfd < 0)
-    {
-	printf("sender_thread: ERROR mq_open failed\n");
-        pthread_exit((pthread_addr_t)1);
-    }
-
-  /* Fill in a test message buffer to send */
-
-  memcpy(msg_buffer, TEST_MESSAGE, TEST_MSGLEN);
-
-  /* Perform the send TEST_SEND_NMSGS times */
-
-  for (i = 0; i < TEST_SEND_NMSGS; i++)
-    {
-      status = mq_send(mqfd, msg_buffer, TEST_MSGLEN, 42);
-      if (status < 0)
-        {
-          printf("sender_thread: ERROR mq_send failure=%d on msg %d\n", status, i);
-          nerrors++;
-        }
-      else
-        {
-          printf("sender_thread: mq_send succeeded on msg %d\n", i);
-        }
-    }
-
-  /* Close the queue and return success */
-
-  if (mq_close(mqfd) < 0)
-    {
-      printf("sender_thread: ERROR mq_close failed\n");
-    }
-
-  printf("sender_thread: returning nerrors=%d\n", nerrors);
-  return (pthread_addr_t)nerrors;
-}
-
-static void *receiver_thread(void *arg)
-{
-  mqd_t mqfd;
-  char msg_buffer[TEST_MSGLEN];
-  struct mq_attr attr;
-  int nbytes;
-  int nerrors = 0;
-  int i;
-
-  printf("receiver_thread: Starting\n");
-
-  /* Fill in attributes for message queue */
-
-  attr.mq_maxmsg  = 20;
-  attr.mq_msgsize = TEST_MSGLEN;
-  attr.mq_flags   = 0;
-
-  /* Set the flags for the open of the queue.
-   * Make it a blocking open on the queue, meaning it will block if
-   * this task tries to read from the queue when the queue is empty
-   *
-   *   O_CREAT - the queue will get created if it does not already exist.
-   *   O_RDONLY - we are only planning to read from the queue.
-   *
-   * Open the queue, and create it if the sending process hasn't
-   * already created it.
-   */
-
-   mqfd = mq_open("testmq", O_RDONLY|O_CREAT, 0666, &attr);
-   if (mqfd < 0)
-     {
-       printf("receiver_thread: ERROR mq_open failed\n");
-       pthread_exit((pthread_addr_t)1);
-     }
-
-   /* Perform the receive TEST_RECEIVE_NMSGS times */
-
-   for (i = 0; i < TEST_RECEIVE_NMSGS; i++)
-    {
-      memset(msg_buffer, 0xaa, TEST_MSGLEN);
-      nbytes = mq_receive(mqfd, msg_buffer, TEST_MSGLEN, 0);
-      if (nbytes < 0)
-        {
-          /* mq_receive failed.  If the error is because of EINTR then
-           * it is not a failure.
-           */
-
-          if (errno != EINTR)
-            {
-              printf("receiver_thread: ERROR mq_receive failure on msg %d, errno=%d\n", i, errno);
-              nerrors++;
-            }
-          else
-            {
-              printf("receiver_thread: mq_receive interrupted!\n");
-            }
-        }
-      else if (nbytes != TEST_MSGLEN)
-        {
-          printf("receiver_thread: mq_receive return bad size %d on msg %d\n", nbytes, i);
-          nerrors++;
-        }
-      else if (memcmp(TEST_MESSAGE, msg_buffer, nbytes) != 0)
-        {
-          int j;
-
-          printf("receiver_thread: mq_receive returned corrupt message on msg %d\n", i);
-          printf("receiver_thread:                  i  Expected Received\n");
-
-          for (j = 0; j < TEST_MSGLEN-1; j++)
-            {
-              if (isprint(msg_buffer[j]))
-                {
-                 printf("receiver_thread:                  %2d %02x (%c) %02x (%c)\n",
-                         j, TEST_MESSAGE[j], TEST_MESSAGE[j], msg_buffer[j], msg_buffer[j]);
-                }
-              else
-                {
-                  printf("receiver_thread:                  %2d %02x (%c) %02x\n",
-                         j, TEST_MESSAGE[j], TEST_MESSAGE[j], msg_buffer[j]);
-                }
-            }
-          printf("receiver_thread:                  %2d 00      %02x\n",
-                  j, msg_buffer[j]);
-        }
-      else
-        {
-          printf("receiver_thread: mq_receive succeeded on msg %d\n", i);
-        }
-    }
-
-  /* Close the queue and return success */
-
-  if (mq_close(mqfd) < 0)
-    {
-      printf("receiver_thread: ERROR mq_close failed\n");
-      nerrors++;
-    }
-
-  /* Destroy the queue */
-
-  if (mq_unlink("testmq") < 0)
-    {
-      printf("receiver_thread: ERROR mq_close failed\n");
-      nerrors++;
-    }
-
-  printf("receiver_thread: returning nerrors=%d\n", nerrors);
-  pthread_exit((pthread_addr_t)nerrors);
-  return (pthread_addr_t)nerrors;
-}
-
-void mqueue_test(void)
-{
-  pthread_t sender;
-  pthread_t receiver;
-  void *result;
-  pthread_attr_t attr;
-  struct sched_param sparam;
-  int prio_min;
-  int prio_max;
-  int prio_mid;
-  int status;
-
-  /* Start the sending thread at higher priority */
-
-  printf("mqueue_test: Starting receiver\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("mqueue_test: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  status = pthread_attr_setstacksize(&attr, STACKSIZE);
-  if (status != 0)
-    {
-      printf("mqueue_test: pthread_attr_setstacksize failed, status=%d\n", status);
-    }
-
-  prio_min = sched_get_priority_min(SCHED_FIFO);
-  prio_max = sched_get_priority_max(SCHED_FIFO);
-  prio_mid = (prio_min + prio_max) / 2;
-
-  sparam.sched_priority = prio_mid;
-  status = pthread_attr_setschedparam(&attr,&sparam);
-  if (status != OK)
-    {
-      printf("mqueue_test: pthread_attr_setschedparam failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("mqueue_test: Set receiver priority to %d\n", sparam.sched_priority);
-    }
-
-  status = pthread_create(&receiver, &attr, receiver_thread, NULL);
-  if (status != 0)
-    {
-      printf("mqueue_test: pthread_create failed, status=%d\n", status);
-    }
-
-  /* Start the sending thread at lower priority */
-
-  printf("mqueue_test: Starting sender\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("mqueue_test: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  status = pthread_attr_setstacksize(&attr, STACKSIZE);
-  if (status != 0)
-    {
-      printf("mqueue_test: pthread_attr_setstacksize failed, status=%d\n", status);
-    }
-
-  sparam.sched_priority = (prio_min + prio_mid) / 2;
-  status = pthread_attr_setschedparam(&attr,&sparam);
-  if (status != OK)
-    {
-      printf("mqueue_test: pthread_attr_setschedparam failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("mqueue_test: Set sender thread priority to %d\n", sparam.sched_priority);
-    }
-
-  status = pthread_create(&sender, &attr, sender_thread, NULL);
-  if (status != 0)
-    {
-      printf("mqueue_test: pthread_create failed, status=%d\n", status);
-    }
-
-  printf("mqueue_test: Waiting for sender to complete\n");
-  pthread_join(sender, &result);
-  if (result != (void*)0)
-    {
-      printf("mqueue_test: ERROR sender thread exited with %d errors\n", (int)result);
-    }
-
-#ifndef CONFIG_DISABLE_SIGNALS
-  /* Wake up the receiver thread with a signal */
-
-  printf("mqueue_test: Killing receiver\n");
-  pthread_kill(receiver, 9);
-
-  /* Wait a bit to see if the thread exits on its own */
-
-  usleep(HALF_SECOND_USEC_USEC);
-#endif
-
-  /* Then cancel the thread and see if it did */
-
-  printf("mqueue_test: Canceling receiver\n");
-  status = pthread_cancel(receiver);
-  if (status == ESRCH)
-    {
-      printf("mqueue_test: receiver has already terminated\n");
-    }
-
-  pthread_join(receiver, &result);
-  if (result != (void*)0)
-    {
-      printf("mqueue_test: ERROR receiver thread exited with %d errors\n", (int)result);
-    }
-}
-
-
diff --git a/apps/examples/ostest/mutex.c b/apps/examples/ostest/mutex.c
deleted file mode 100644
index 0b7f70daa..000000000
--- a/apps/examples/ostest/mutex.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/***********************************************************************
- * mutex.c
- *
- *   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-#include <stdio.h>
-#include <pthread.h>
-#include "ostest.h"
-
-#ifndef NULL
-# define NULL (void*)0
-#endif
-
-#define NLOOPS 32
-
-static pthread_mutex_t mut;
-static volatile int my_mutex = 0;
-static unsigned long nloops[2] = {0, 0};
-static unsigned long nerrors[2] = {0, 0};
-
-static void *thread_func(void *parameter)
-{
-  int id  = (int)parameter;
-  int ndx = id - 1;
-  int i;
-
-  for (nloops[ndx] = 0; nloops[ndx] < NLOOPS; nloops[ndx]++)
-    {
-      int status = pthread_mutex_lock(&mut);
-      if (status != 0)
-        {
-          printf("ERROR thread %d: pthread_mutex_lock failed, status=%d\n",
-                  id, status);
-        }
-
-      if (my_mutex == 1)
-        {
-          printf("ERROR thread=%d: "
-                 "my_mutex should be zero, instead my_mutex=%d\n",
-                  id, my_mutex);
-          nerrors[ndx]++;
-        }
-
-      my_mutex = 1;	
-      for (i = 0; i < 10; i++)
-        {
-          pthread_yield();
-        }
-      my_mutex = 0;
-
-      status = pthread_mutex_unlock(&mut);
-      if (status != 0)
-        {
-          printf("ERROR thread %d: pthread_mutex_unlock failed, status=%d\n",
-                 id, status);
-        }
-    }
-  pthread_exit(NULL);
-  return NULL; /* Non-reachable -- needed for some compilers */
-}
-
-void mutex_test(void)
-{
-  pthread_t thread1, thread2;
-#ifdef SDCC
-  pthread_addr_t result1, result2;
-  pthread_attr_t attr;
-#endif
-  int status;
-
-  /* Initialize the mutex */
-
-  printf("Initializing mutex\n");
-  pthread_mutex_init(&mut, NULL);
-
-  /* Start two thread instances */
-
-  printf("Starting thread 1\n");
-#ifdef SDCC
-  (void)pthread_attr_init(&attr);
-  status = pthread_create(&thread1, &attr, thread_func, (pthread_addr_t)1);
-#else
-  status = pthread_create(&thread1, NULL, thread_func, (pthread_addr_t)1);
-#endif
-  if (status != 0)
-    {
-      printf("Error in thread#1 creation\n");
-    }
-
-  printf("Starting thread 2\n");
-#ifdef SDCC
-  status = pthread_create(&thread2, &attr, thread_func, (pthread_addr_t)2);
-#else
-  status = pthread_create(&thread2, NULL, thread_func, (pthread_addr_t)2);
-#endif
-  if (status != 0)
-    {
-      printf("Error in thread#2 creation\n");
-    }
-
-#ifdef SDCC
-  pthread_join(thread1, &result1);
-  pthread_join(thread2, &result2);
-#else
-  pthread_join(thread1, NULL);
-  pthread_join(thread2, NULL);
-#endif
-
-  printf("\t\tThread1\tThread2\n");
-  printf("\tLoops\t%ld\t%ld\n", nloops[0], nloops[1]);
-  printf("\tErrors\t%ld\t%ld\n", nerrors[0], nerrors[1]);
-}
diff --git a/apps/examples/ostest/ostest.h b/apps/examples/ostest/ostest.h
deleted file mode 100644
index 5217f0a0c..000000000
--- a/apps/examples/ostest/ostest.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/****************************************************************************
- * apps/examples/ostest/ostest.h
- *
- *   Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __APPS_EXAMPLES_OSTEST_OSTEST_H
-#define __APPS_EXAMPLES_OSTEST_OSTEST_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/* The task_create task size can be specified in the defconfig file */
-
-#ifdef CONFIG_EXAMPLES_OSTEST_STACKSIZE
-#  define STACKSIZE CONFIG_EXAMPLES_OSTEST_STACKSIZE
-#else
-#  define STACKSIZE 8192
-#endif
-
-/* The number of times to execute the test can be specified in the defconfig
- * file.
- */
-
-#ifndef CONFIG_EXAMPLES_OSTEST_LOOPS
-#  define CONFIG_EXAMPLES_OSTEST_LOOPS 1
-#endif
-
-/* This is the number of threads that are created in the barrier test.
- * A smaller number should be selected on systems without sufficient memory
- * to start so many threads.
- */
-
-#ifndef CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS
-#  define CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS 8
-#endif
-
-/* Priority inheritance */
-
-#if defined(CONFIG_DEBUG) && defined(CONFIG_PRIORITY_INHERITANCE) && defined(CONFIG_SEM_PHDEBUG)
-#  define dump_nfreeholders(s) printf(s " nfreeholders: %d\n", sem_nfreeholders())
-#else
-#  define dump_nfreeholders(s)
-#endif
-
-/* If CONFIG_STDIO_LINEBUFFER is defined, the STDIO buffer will be flushed
- * on each new line.  Otherwise, STDIO needs to be explicitly flushed to
- * see the output in context.
- */
-
-#if CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NFILE_STREAMS > 0 && \
-    CONFIG_STDIO_BUFFER_SIZE > 0 && !defined(CONFIG_STDIO_LINEBUFFER)
-#  define FFLUSH() fflush(stdout)
-#else
-#  define FFLUSH()
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-/* dev_null.c ***************************************************************/
-
-int dev_null(void);
-
-/* fpu.c ********************************************************************/
-
-void fpu_test(void);
-
-/* waitpid.c ****************************************************************/
-
-#ifdef CONFIG_SCHED_WAITPID
-int waitpid_test(void);
-#endif
-
-/* mutex.c ******************************************************************/
-
-void mutex_test(void);
-
-/* rmutex.c ******************************************************************/
-
-void recursive_mutex_test(void);
-
-/* sem.c ********************************************************************/
-
-void sem_test(void);
-
-/* cond.c *******************************************************************/
-
-void cond_test(void);
-
-/* mqueue.c *****************************************************************/
-
-void mqueue_test(void);
-
-/* timedmqueue.c ************************************************************/
-
-void timedmqueue_test(void);
-
-/* cancel.c *****************************************************************/
-
-void cancel_test(void);
-
-/* timedwait.c **************************************************************/
-
-void timedwait_test(void);
-
-/* sighand.c ****************************************************************/
-
-void sighand_test(void);
-
-/* posixtimers.c ************************************************************/
-
-void timer_test(void);
-
-/* roundrobin.c *************************************************************/
-
-void rr_test(void);
-
-/* barrier.c ****************************************************************/
-
-void barrier_test(void);
-
-/* prioinherit.c ************************************************************/
-
-void priority_inheritance(void);
-
-/* vfork.c ******************************************************************/
-
-#ifdef CONFIG_ARCH_HAVE_VFORK
-int vfork_test(void);
-#endif
-
-/* APIs exported (conditionally) by the OS specifically for testing of
- * priority inheritance
- */
-
-#if defined(CONFIG_DEBUG) && defined(CONFIG_PRIORITY_INHERITANCE) && defined(CONFIG_SEM_PHDEBUG)
-void sem_enumholders(FAR sem_t *sem);
-int sem_nfreeholders(void);
-#else
-#  define sem_enumholders(sem)
-#  define sem_nfreeholders()
-#endif
-
-#endif /* __APPS_EXAMPLES_OSTEST_OSTEST_H */
diff --git a/apps/examples/ostest/ostest_main.c b/apps/examples/ostest/ostest_main.c
deleted file mode 100644
index 3e4197fdc..000000000
--- a/apps/examples/ostest/ostest_main.c
+++ /dev/null
@@ -1,564 +0,0 @@
-/****************************************************************************
- * apps/examples/ostest/ostest_main.c
- *
- *   Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <signal.h>
-#include <string.h>
-#include <sched.h>
-#include <errno.h>
-
-#include <nuttx/init.h>
-
-#include "ostest.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#define PRIORITY         100
-#define NARGS              4
-#define HALF_SECOND_USEC 500000L
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static const char arg1[] = "Arg1";
-static const char arg2[] = "Arg2";
-static const char arg3[] = "Arg3";
-static const char arg4[] = "Arg4";
-
-#if CONFIG_NFILE_DESCRIPTORS > 0
-static const char write_data1[] = "stdio_test: write fd=1\n";
-static const char write_data2[] = "stdio_test: write fd=2\n";
-#endif
-
-#ifdef SDCC
-/* I am not yet certain why SDCC does not like the following
- * initializer.  It involves some issues with 2- vs 3-byte
- * pointer types.
- */
-
-static const char *g_argv[NARGS+1];
-#else
-static const char *g_argv[NARGS+1] = { arg1, arg2, arg3, arg4, NULL };
-#endif
-
-#ifndef CONFIG_DISABLE_SIGNALS
-static struct mallinfo g_mmbefore;
-static struct mallinfo g_mmprevious;
-static struct mallinfo g_mmafter;
-#endif
-
-#ifndef CONFIG_DISABLE_ENVIRON
-const char g_var1_name[]    = "Variable1";
-const char g_var1_value[]   = "GoodValue1";
-const char g_var2_name[]    = "Variable2";
-const char g_var2_value[]   = "GoodValue2";
-const char g_var3_name[]    = "Variable3";
-const char g_var3_value[]   = "GoodValue3";
-
-const char g_bad_value1[]   = "BadValue1";
-const char g_bad_value2[]   = "BadValue2";
-
-const char g_putenv_value[] = "Variable1=BadValue3";
-
-#endif
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: show_memory_usage
- ****************************************************************************/
-
-#ifndef CONFIG_DISABLE_SIGNALS
-static void show_memory_usage(struct mallinfo *mmbefore,
-                              struct mallinfo *mmafter)
-{
-  printf("VARIABLE  BEFORE   AFTER\n");
-  printf("======== ======== ========\n");
-  printf("arena    %8x %8x\n", mmbefore->arena,    mmafter->arena);
-  printf("ordblks  %8d %8d\n", mmbefore->ordblks,  mmafter->ordblks);
-  printf("mxordblk %8x %8x\n", mmbefore->mxordblk, mmafter->mxordblk);
-  printf("uordblks %8x %8x\n", mmbefore->uordblks, mmafter->uordblks);
-  printf("fordblks %8x %8x\n", mmbefore->fordblks, mmafter->fordblks);
-}
-#else
-# define show_memory_usage(mm1, mm2)
-#endif
-
-/****************************************************************************
- * Name: check_test_memory_usage
- ****************************************************************************/
-
-#ifndef CONFIG_DISABLE_SIGNALS
-static void check_test_memory_usage(void)
-{
-  /* Wait a little bit to let any threads terminate */
-
-  usleep(HALF_SECOND_USEC);
-
-  /* Get the current memory usage */
-
-#ifdef CONFIG_CAN_PASS_STRUCTS
-  g_mmafter = mallinfo();
-#else
-  (void)mallinfo(&g_mmafter);
-#endif
-
-  /* Show the change from the previous time */
-
-  printf("\nEnd of test memory usage:\n");
-  show_memory_usage(&g_mmprevious, &g_mmafter);
-
-  /* Set up for the next test */
-
-#ifdef CONFIG_CAN_PASS_STRUCTS
-  g_mmprevious = g_mmafter;
-#else
-  memcpy(&g_mmprevious, &g_mmafter, sizeof(struct mallinfo));
-#endif
-
-  /* If so enabled, show the use of priority inheritance resources */
-
-  dump_nfreeholders("user_main:");
-}
-#else
-# define check_test_memory_usage()
-#endif
-
-/****************************************************************************
- * Name: show_variable
- ****************************************************************************/
-
-#ifndef CONFIG_DISABLE_ENVIRON
-static void show_variable(const char *var_name, const char *exptd_value, bool var_valid)
-{
-  char *actual_value = getenv(var_name);
-  if (actual_value)
-    {
-      if (var_valid)
-        {
-          if (strcmp(actual_value, exptd_value) == 0)
-            {
-              printf("show_variable: Variable=%s has value=%s\n", var_name, exptd_value);
-            }
-          else
-            {
-              printf("show_variable: ERROR Variable=%s has the wrong value\n", var_name);
-              printf("show_variable:       found=%s expected=%s\n", actual_value, exptd_value);
-            }
-        }
-      else
-        {
-          printf("show_variable: ERROR Variable=%s has a value when it should not\n", var_name);
-          printf("show_variable:       value=%s\n", actual_value);
-        }
-    }
-  else if (var_valid)
-    {
-      printf("show_variable: ERROR Variable=%s has no value\n", var_name);
-      printf("show_variable:       Should have had value=%s\n", exptd_value);
-    }
-  else
-    {
-      printf("show_variable: Variable=%s has no value\n", var_name);
-    }
-}
-
-static void show_environment(bool var1_valid, bool var2_valid, bool var3_valid)
-{
-  show_variable(g_var1_name, g_var1_value, var1_valid);
-  show_variable(g_var2_name, g_var2_value, var2_valid);
-  show_variable(g_var3_name, g_var3_value, var3_valid);
-}
-#else
-# define show_environment()
-#endif
-
-/****************************************************************************
- * Name: user_main
- ****************************************************************************/
-
-static int user_main(int argc, char *argv[])
-{
-  int i;
-
-  /* Sample the memory usage now */
-
-#ifndef CONFIG_DISABLE_SIGNALS
-  usleep(HALF_SECOND_USEC);
-
-#ifdef CONFIG_CAN_PASS_STRUCTS
-  g_mmbefore = mallinfo();
-  g_mmprevious = g_mmbefore;
-#else
-  (void)mallinfo(&g_mmbefore);
-  memcpy(&g_mmprevious, &g_mmbefore, sizeof(struct mallinfo));
-#endif
-#endif
-
-  printf("\nuser_main: Begin argument test\n");
-  printf("user_main: Started with argc=%d\n", argc);
-
-  /* Verify passed arguments */
-
-  if (argc != NARGS + 1)
-    {
-      printf("user_main: Error expected argc=%d got argc=%d\n",
-             NARGS+1, argc);
-    }
-
-  for (i = 0; i <= NARGS; i++)
-    {
-      printf("user_main: argv[%d]=\"%s\"\n", i, argv[i]);
-    }
-
-  for (i = 1; i <= NARGS; i++)
-    {
-      if (strcmp(argv[i], g_argv[i-1]) != 0)
-        {
-          printf("user_main: ERROR argv[%d]:  Expected \"%s\" found \"%s\"\n",
-                 i, g_argv[i-1], argv[i]);
-        }
-    }
-  check_test_memory_usage();
-
-  /* If retention of child status is enable, then suppress it for this task.
-   * This task may produce many, many children (especially if
-   * CONFIG_EXAMPLES_OSTEST_LOOPS) and it does not harvest their exit status.
-   * As a result, the test may fail inappropriately unless retention of
-   * child exit status is disabled.
-   *
-   * So basically, this tests that child status can be disabled, but cannot
-   * verify that status is retained correctly.
-   */
-
-#if defined(CONFIG_SCHED_HAVE_PARENT) && defined(CONFIG_SCHED_CHILD_STATUS)
-  {
-    struct sigaction sa;
-    int ret;
-
-    sa.sa_handler = SIG_IGN;
-    sa.sa_flags = SA_NOCLDWAIT;
-    ret = sigaction(SIGCHLD, &sa, NULL);
-    if (ret < 0)
-      {
-        printf("user_main: ERROR: sigaction failed: %d\n", errno);
-      }
-  }
-#endif
-
-  /* Check environment variables */
-#ifndef CONFIG_DISABLE_ENVIRON
-  show_environment(true, true, true);
-
-  unsetenv(g_var1_name);
-  show_environment(false, true, true);
-  check_test_memory_usage();
-
-  clearenv();
-  show_environment(false, false, false);
-  check_test_memory_usage();
-#endif
-
-  /* Top of test loop */
-  
-#if CONFIG_EXAMPLES_OSTEST_LOOPS > 1
-  for (i = 0; i < CONFIG_EXAMPLES_OSTEST_LOOPS; i++)
-#elif CONFIG_EXAMPLES_OSTEST_LOOPS == 0
-  for (;;)
-#endif
-    {
-#if CONFIG_NFILE_DESCRIPTORS > 0
-      /* Checkout /dev/null */
-
-      printf("\nuser_main: /dev/null test\n");
-      dev_null();
-      check_test_memory_usage();
-#endif
-
-#ifdef  CONFIG_ARCH_FPU
-  /* Check that the FPU is properly supported during context switching */
-
-      printf("\nuser_main: FPU test\n");
-      fpu_test();
-      check_test_memory_usage();
-#endif
-
-#ifdef CONFIG_SCHED_WAITPID
-      /* Check waitpid() and friends */
-
-      printf("\nuser_main: waitpid test\n");
-      waitpid_test();
-      check_test_memory_usage();
-#endif
-
-#ifndef CONFIG_DISABLE_PTHREAD
-      /* Verify pthreads and pthread mutex */
-
-      printf("\nuser_main: mutex test\n");
-      mutex_test();
-      check_test_memory_usage();
-#endif
-
-#if !defined(CONFIG_DISABLE_PTHREAD) && defined(CONFIG_MUTEX_TYPES)
-      /* Verify recursive mutexes */
-
-      printf("\nuser_main: recursive mutex test\n");
-      recursive_mutex_test();
-      check_test_memory_usage();
-#endif
-
-#ifndef CONFIG_DISABLE_PTHREAD
-      /* Verify pthread cancellation */
-
-      printf("\nuser_main: cancel test\n");
-      cancel_test();
-      check_test_memory_usage();
-#endif
-
-#ifndef CONFIG_DISABLE_PTHREAD
-      /* Verify pthreads and semaphores */
-
-      printf("\nuser_main: semaphore test\n");
-      sem_test();
-      check_test_memory_usage();
-#endif
-
-#ifndef CONFIG_DISABLE_PTHREAD
-    /* Verify pthreads and condition variables */
-
-      printf("\nuser_main: condition variable test\n");
-#ifdef CONFIG_PRIORITY_INHERITANCE
-      printf("\n           Skipping, Test logic incompatible with priority inheritance\n");
-#else
-      cond_test();
-      check_test_memory_usage();
-#endif
-#endif
-
-#if !defined(CONFIG_DISABLE_SIGNALS) && !defined(CONFIG_DISABLE_PTHREAD) && !defined(CONFIG_DISABLE_CLOCK)
-      /* Verify pthreads and condition variable timed waits */
-
-      printf("\nuser_main: timed wait test\n");
-      timedwait_test();
-      check_test_memory_usage();
-#endif
-
-#if !defined(CONFIG_DISABLE_MQUEUE) && !defined(CONFIG_DISABLE_PTHREAD)
-      /* Verify pthreads and message queues */
-
-      printf("\nuser_main: message queue test\n");
-      mqueue_test();
-      check_test_memory_usage();
-#endif
-
-#if !defined(CONFIG_DISABLE_MQUEUE) && !defined(CONFIG_DISABLE_PTHREAD) && !defined(CONFIG_DISABLE_CLOCK)
-      /* Verify pthreads and message queues */
-
-      printf("\nuser_main: timed message queue test\n");
-      timedmqueue_test();
-      check_test_memory_usage();
-#endif
-
-#ifndef CONFIG_DISABLE_SIGNALS
-      /* Verify signal handlers */
-
-      printf("\nuser_main: signal handler test\n");
-      sighand_test();
-      check_test_memory_usage();
-#endif
-
-#if !defined(CONFIG_DISABLE_POSIX_TIMERS) && !defined(CONFIG_DISABLE_SIGNALS)
-      /* Verify posix timers */
-
-      printf("\nuser_main: POSIX timer test\n");
-      timer_test();
-      check_test_memory_usage();
-#endif
-
-#if !defined(CONFIG_DISABLE_PTHREAD) && CONFIG_RR_INTERVAL > 0
-      /* Verify round robin scheduling */
-
-      printf("\nuser_main: round-robin scheduler test\n");
-      rr_test();
-      check_test_memory_usage();
-#endif
-
-#ifndef CONFIG_DISABLE_PTHREAD
-      /* Verify pthread barriers */
-
-      printf("\nuser_main: barrier test\n");
-      barrier_test();
-      check_test_memory_usage();
-#endif
-
-#if defined(CONFIG_PRIORITY_INHERITANCE) && !defined(CONFIG_DISABLE_SIGNALS) && !defined(CONFIG_DISABLE_PTHREAD)
-      /* Verify priority inheritance */
-
-      printf("\nuser_main: priority inheritance test\n");
-      priority_inheritance();
-      check_test_memory_usage();
-#endif /* CONFIG_PRIORITY_INHERITANCE && !CONFIG_DISABLE_SIGNALS && !CONFIG_DISABLE_PTHREAD */
-
-#ifdef CONFIG_ARCH_HAVE_VFORK
-      printf("\nuser_main: vfork() test\n");
-      vfork_test();
-#endif
-
-      /* Compare memory usage at time ostest_main started until
-       * user_main exits.  These should not be identical, but should
-       * be similar enough that we can detect any serious OS memory
-       * leaks.
-       */
-
-#ifndef CONFIG_DISABLE_SIGNALS
-      usleep(HALF_SECOND_USEC);
-
-#ifdef CONFIG_CAN_PASS_STRUCTS
-      g_mmafter = mallinfo();
-#else
-      (void)mallinfo(&g_mmafter);
-#endif
-
-      printf("\nFinal memory usage:\n");
-      show_memory_usage(&g_mmbefore, &g_mmafter);
-#endif
-    }
-
-  printf("user_main: Exitting\n");
-  return 0;
-}
-
-/****************************************************************************
- * Name: stdio_test
- ****************************************************************************/
-
-static void stdio_test(void)
-{
-  /* Verify that we can communicate */
-
-#if CONFIG_NFILE_DESCRIPTORS > 0
-  write(1, write_data1, sizeof(write_data1)-1);
-#endif
-  printf("stdio_test: Standard I/O Check: printf\n");
-
-#if CONFIG_NFILE_DESCRIPTORS > 1
-  write(2, write_data2, sizeof(write_data2)-1);
-#endif
-#if CONFIG_NFILE_STREAMS > 0
-  fprintf(stderr, "stdio_test: Standard I/O Check: fprintf to stderr\n");
-#endif
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * ostest_main
- ****************************************************************************/
-
-int ostest_main(int argc, char *argv[])
-{
-  int result;
-
-  /* Verify that stdio works first */
-
-  stdio_test();
-
-#ifdef SDCC
-  /* I am not yet certain why SDCC does not like the following initilizers.
-   * It involves some issues with 2- vs 3-byte pointer types.
-   */
-
-  g_argv[0] = arg1;
-  g_argv[1] = arg2;
-  g_argv[2] = arg3;
-  g_argv[3] = arg4;
-  g_argv[4] = NULL;
-#endif
-
-  /* Set up some environment variables */
-
-#ifndef CONFIG_DISABLE_ENVIRON
-  printf("ostest_main: putenv(%s)\n", g_putenv_value);
-  putenv(g_putenv_value);                   /* Varaible1=BadValue3 */
-  printf("ostest_main: setenv(%s, %s, TRUE)\n", g_var1_name, g_var1_value);
-  setenv(g_var1_name, g_var1_value, TRUE);  /* Variable1=GoodValue1 */
-
-  printf("ostest_main: setenv(%s, %s, FALSE)\n", g_var2_name, g_bad_value1);
-  setenv(g_var2_name, g_bad_value1, FALSE); /* Variable2=BadValue1 */
-  printf("ostest_main: setenv(%s, %s, TRUE)\n", g_var2_name, g_var2_value);
-  setenv(g_var2_name, g_var2_value, TRUE);  /* Variable2=GoodValue2 */
-
-  printf("ostest_main: setenv(%s, %s, FALSE)\n", g_var3_name, g_var3_name);
-  setenv(g_var3_name, g_var3_value, FALSE); /* Variable3=GoodValue3 */
-  printf("ostest_main: setenv(%s, %s, FALSE)\n", g_var3_name, g_var3_name);
-  setenv(g_var3_name, g_bad_value2, FALSE); /* Variable3=GoodValue3 */
-  show_environment(true, true, true);
-#endif
-
-  /* Verify that we can spawn a new task */
-
-#ifndef CONFIG_CUSTOM_STACK
-  result = task_create("ostest", PRIORITY, STACKSIZE, user_main, g_argv);
-#else
-  result = task_create("ostest", PRIORITY, user_main, g_argv);
-#endif
-  if (result == ERROR)
-    {
-      printf("ostest_main: ERROR Failed to start user_main\n");
-    }
-  else
-    {
-      printf("ostest_main: Started user_main at PID=%d\n", result);
-    }
-
-  printf("ostest_main: Exitting\n");
-  return 0;
-}
diff --git a/apps/examples/ostest/posixtimer.c b/apps/examples/ostest/posixtimer.c
deleted file mode 100644
index ebb1ab79e..000000000
--- a/apps/examples/ostest/posixtimer.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/***********************************************************************
- * examples/ostest/posixtimer.c
- *
- *   Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-/**************************************************************************
- * Included Files
- **************************************************************************/
-
-#include <stdio.h>
-#include <unistd.h>
-#include <semaphore.h>
-#include <signal.h>
-#include <sched.h>
-#include <errno.h>
-#include "ostest.h"
-
-/**************************************************************************
- * Private Definitions
- **************************************************************************/
-
-#ifndef NULL
-# define NULL (void*)0
-#endif
-
-#define MY_TIMER_SIGNAL 17
-#define SIGVALUE_INT  42
-
-/**************************************************************************
- * Private Data
- **************************************************************************/
-
-static sem_t sem;
-static int g_nsigreceived = 0;
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-static void timer_expiration(int signo, siginfo_t *info, void *ucontext)
-{
-  sigset_t oldset;
-  sigset_t allsigs;
-  int status;
-
-  printf("timer_expiration: Received signal %d\n" , signo);
-
-  g_nsigreceived++;
-
-  /* Check signo */
-
-  if (signo != MY_TIMER_SIGNAL)
-    {
-      printf("timer_expiration: ERROR expected signo=%d\n" , MY_TIMER_SIGNAL);
-    }
-
-  /* Check siginfo */
-
-  if (info->si_value.sival_int != SIGVALUE_INT)
-    {
-      printf("timer_expiration: ERROR sival_int=%d expected %d\n",
-              info->si_value.sival_int, SIGVALUE_INT);
-    }
-  else
-    {
-      printf("timer_expiration: sival_int=%d\n" , info->si_value.sival_int);
-    }
-
-  if (info->si_signo != MY_TIMER_SIGNAL)
-    {
-      printf("timer_expiration: ERROR expected si_signo=%d, got=%d\n",
-               MY_TIMER_SIGNAL, info->si_signo);
-    }
-
-  if (info->si_code == SI_TIMER)
-    {
-      printf("timer_expiration: si_code=%d (SI_TIMER)\n" , info->si_code);
-    }
-  else
-    {
-      printf("timer_expiration: ERROR si_code=%d, expected SI_TIMER=%d\n",
-             info->si_code, SI_TIMER);
-    }
-
-  /* Check ucontext_t */
-
-  printf("timer_expiration: ucontext=%p\n" , ucontext);
-
-  /* Check sigprocmask */
-
-  (void)sigfillset(&allsigs);
-  status = sigprocmask(SIG_SETMASK, NULL, &oldset);
-  if (status != OK)
-    {
-      printf("timer_expiration: ERROR sigprocmask failed, status=%d\n",
-              status);
-    }
-
-  if (oldset != allsigs)
-    {
-      printf("timer_expiration: ERROR sigprocmask=%x expected=%x\n",
-              oldset, allsigs);
-    }
-
-}
-
-/**************************************************************************
- * Public Functions
- **************************************************************************/
-
-void timer_test(void)
-{
-  sigset_t           sigset;
-  struct sigaction   act;
-  struct sigaction   oact;
-  struct sigevent    notify;
-  struct itimerspec  timer;
-  timer_t            timerid;
-  int                status;
-  int                i;
-
-  printf("timer_test: Initializing semaphore to 0\n" );
-  sem_init(&sem, 0, 0);
-
-  /* Start waiter thread  */
-
-  printf("timer_test: Unmasking signal %d\n" , MY_TIMER_SIGNAL);
-
-  (void)sigemptyset(&sigset);
-  (void)sigaddset(&sigset, MY_TIMER_SIGNAL);
-  status = sigprocmask(SIG_UNBLOCK, &sigset, NULL);
-  if (status != OK)
-    {
-      printf("timer_test: ERROR sigprocmask failed, status=%d\n",
-              status);
-    }
-
-  printf("timer_test: Registering signal handler\n" );
-  act.sa_sigaction = timer_expiration;
-  act.sa_flags  = SA_SIGINFO;
-
-  (void)sigfillset(&act.sa_mask);
-  (void)sigdelset(&act.sa_mask, MY_TIMER_SIGNAL);
-
-  status = sigaction(MY_TIMER_SIGNAL, &act, &oact);
-  if (status != OK)
-    {
-      printf("timer_test: ERROR sigaction failed, status=%d\n" , status);
-    }
-
-#ifndef SDCC
-  printf("timer_test: oact.sigaction=%p oact.sa_flags=%x oact.sa_mask=%x\n",
-          oact.sa_sigaction, oact.sa_flags, oact.sa_mask);
-#endif
-
-  /* Create the POSIX timer */
-
-  printf("timer_test: Creating timer\n" );
-
-  notify.sigev_notify          = SIGEV_SIGNAL;
-  notify.sigev_signo           = MY_TIMER_SIGNAL;
-  notify.sigev_value.sival_int = SIGVALUE_INT;
-
-  status = timer_create(CLOCK_REALTIME, &notify, &timerid);
-  if (status != OK)
-    {
-      printf("timer_test: timer_create failed, errno=%d\n", errno);
-      goto errorout;
-    }
-
-  /* Start the POSIX timer */
-
-  printf("timer_test: Starting timer\n" );
-
-  timer.it_value.tv_sec     = 2;
-  timer.it_value.tv_nsec    = 0;
-  timer.it_interval.tv_sec  = 2;
-  timer.it_interval.tv_nsec = 0;
-
-  status = timer_settime(timerid, 0, &timer, NULL);
-  if (status != OK)
-    {
-      printf("timer_test: timer_settime failed, errno=%d\n", errno);
-      goto errorout;
-    }
-
-  /* Take the semaphore */
-
-  for (i = 0; i < 5; i++)
-    {
-      printf("timer_test: Waiting on semaphore\n" );
-      FFLUSH();
-      status = sem_wait(&sem);
-      if (status != 0)
-        {
-          int error = errno;
-          if (error == EINTR)
-            {
-              printf("timer_test: sem_wait() successfully interrupted by signal\n" );
-            }
-          else
-            {
-              printf("timer_test: ERROR sem_wait failed, errno=%d\n" , error);
-            }
-        }
-      else
-        {
-          printf("timer_test: ERROR awakened with no error!\n" );
-        }
-      printf("timer_test: g_nsigreceived=%d\n", g_nsigreceived);
-    }
-
-errorout:
-  sem_destroy(&sem);
-
-  /* Then delete the timer */
-
-  printf("timer_test: Deleting timer\n" );
-  status = timer_delete(timerid);
-  if (status != OK)
-    {
-      printf("timer_test: timer_create failed, errno=%d\n", errno);
-    }
-
-  /* Detach the signal handler */
-
-  act.sa_sigaction = SIG_DFL;
-  status = sigaction(MY_TIMER_SIGNAL, &act, &oact);
-
-  printf("timer_test: done\n" );
-  FFLUSH();
-}
diff --git a/apps/examples/ostest/prioinherit.c b/apps/examples/ostest/prioinherit.c
deleted file mode 100644
index cd04df7e6..000000000
--- a/apps/examples/ostest/prioinherit.c
+++ /dev/null
@@ -1,559 +0,0 @@
-/****************************************************************************
- * examples/ostest/prioinherit.c
- *
- *   Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <stdio.h>
-#include <unistd.h>
-#include <semaphore.h>
-#include <pthread.h>
-#include <errno.h>
-
-#ifdef CONFIG_ARCH_SIM
-#  include <nuttx/arch.h>
-#endif
-
-#include "ostest.h"
-
-#if defined(CONFIG_PRIORITY_INHERITANCE) && !defined(CONFIG_DISABLE_SIGNALS) && !defined(CONFIG_DISABLE_PTHREAD)
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#ifndef CONFIG_SEM_PREALLOCHOLDERS
-#  define CONFIG_SEM_PREALLOCHOLDERS 0
-#endif
-
-/* If resources were configured for lots of holders, then run 3 low priority
- * threads.  Otherwise, just one.
- */
-
-#if CONFIG_SEM_PREALLOCHOLDERS > 3
-#  define NLOWPRI_THREADS 3
-#else
-#  define NLOWPRI_THREADS 1
-#endif
-
-#ifndef CONFIG_SEM_NNESTPRIO
-#  define CONFIG_SEM_NNESTPRIO 0
-#endif
-
-/* Where resources configured for lots of waiters?  If so then run 3 high
- * priority threads.  Otherwise, just one.
- */
-
-#if CONFIG_SEM_NNESTPRIO > 3
-#  define NHIGHPRI_THREADS 3
-#else
-#  define NHIGHPRI_THREADS 1
-#endif
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-enum thstate_e
-{
-  NOTSTARTED = 0,
-  RUNNING,
-  WAITING,
-  DONE
-};
-
-static sem_t g_sem;
-static volatile enum thstate_e g_middlestate;
-static volatile enum thstate_e g_highstate[NHIGHPRI_THREADS];
-static volatile enum thstate_e g_lowstate[NLOWPRI_THREADS];
-static int g_highpri;
-static int g_medpri;
-static int g_lowpri;
-
-/****************************************************************************
- * Name: nhighpri_waiting
- ****************************************************************************/
-
-static int nhighpri_waiting(void)
-{
-   int n = 0;
-   int i;
- 
-   for (i = 0; i < NHIGHPRI_THREADS; i++)
-     {
-       if (g_highstate[i] == WAITING)
-         {
-           n++;
-         }
-     }
-   return n;
-}
-
-/****************************************************************************
- * Name: nhighpri_running
- ****************************************************************************/
-
-static int nhighpri_running(void)
-{
-   int n = 0;
-   int i;
- 
-   for (i = 0; i < NHIGHPRI_THREADS; i++)
-     {
-       if (g_highstate[i] != DONE)
-         {
-           n++;
-         }
-     }
-   return n;
-}
-
-/****************************************************************************
- * Name: highpri_thread
- ****************************************************************************/
-
-static void *highpri_thread(void *parameter)
-{
-  int threadno = (int)parameter;
-  int ret;
-
-  g_highstate[threadno-1] = RUNNING;
-
-  printf("highpri_thread-%d: Started\n", threadno);
-  FFLUSH();
-  sleep(1);
-
-  printf("highpri_thread-%d: Calling sem_wait()\n", threadno);
-  g_highstate[threadno-1] = WAITING;
-  ret                     = sem_wait(&g_sem);
-  g_highstate[threadno-1] = DONE;
-
-  if (ret != 0)
-    {
-      printf("highpri_thread-%d: sem_take failed: %d\n", threadno, ret);
-    }
-  else if (g_middlestate == RUNNING)
-    {
-      printf("highpri_thread-%d: SUCCESS midpri_thread is still running!\n", threadno);
-    }
-  else
-    {
-      printf("highpri_thread-%d: ERROR --  midpri_thread has already exited!\n", threadno);
-    }
-
-  sem_post(&g_sem);
-  printf("highpri_thread-%d: Okay... I'm done!\n", threadno);
-  FFLUSH();
-  return NULL;
-}
-
-/****************************************************************************
- * Name: hog_cpu
- ****************************************************************************/
-
-static inline void hog_cpu(void)
-{
-#ifdef CONFIG_ARCH_SIM
-  /* The simulator doesn't have any mechanism to do asynchronous pre-emption
-   * (basically because it doesn't have any interupts/asynchronous events).
-   * The simulator does "fake" a timer interrupt in up_idle() -- the idle
-   * thread that only executes when nothing else is running.  In the simulator,
-   * we cannot suspend the middle priority task, or we wouldn't have the
-   * test that we want.  So, we have no option but to pump the fake clock
-   * here by calling up_idle().  Sigh!
-   */
-
-  up_idle();
-#else
-  /* On real platforms with a real timer interrupt, we really can hog the
-   * CPU.  When the sleep() goes off in priority_inheritance(), it will
-   * wake up and start the high priority thread.
-   */
-
-  volatile int i;
-  for (i = 0; i < INT_MAX; i++);
-#endif
-}
-
-/****************************************************************************
- * Name: medpri_thread
- ****************************************************************************/
-
-static void *medpri_thread(void *parameter)
-{
-  printf("medpri_thread: Started ... I won't let go of the CPU!\n");
-  g_middlestate = RUNNING;
-  FFLUSH();
-
-  /* The following loop will completely block lowpri_thread from running.
-   * UNLESS priority inheritance is working.  In that case, its priority
-   * will be boosted.
-   */
-
-  while (nhighpri_running() > 0)
-    {
-      hog_cpu();
-    }
-
-  printf("medpri_thread: Okay... I'm done!\n");
-  FFLUSH();
-  g_middlestate = DONE;
-  return NULL;
-}
-
-/****************************************************************************
- * Name: lowpri_thread
- ****************************************************************************/
-
-static void *lowpri_thread(void *parameter)
-{
-  void *retval = (void*)-1;
-  struct sched_param sparam;
-  int threadno = (int)parameter;
-  int expected;
-  int count;
-  int policy;
-  int ret;
-  int nwaiting;
-  int i;
-
-  g_lowstate[threadno-1] = RUNNING;
-  printf("lowpri_thread-%d: Started\n", threadno);
-
-  ret = pthread_getschedparam(pthread_self(), &policy, &sparam);
-  if (ret != 0)
-    {
-      printf("lowpri_thread-%d: ERROR pthread_getschedparam failed: %d\n", threadno, ret);
-    }
-  else
-    {
-      printf("lowpri_thread-%d: initial priority: %d\n", threadno, sparam.sched_priority);
-      if (sparam.sched_priority != g_lowpri)
-        {
-          printf("               ERROR should have been %d\n", g_lowpri);
-        } 
-    }
-
-  g_lowstate[threadno-1] = WAITING;
-  ret = sem_wait(&g_sem);
-  if (ret != 0)
-    {
-      printf("lowpri_thread-%d: sem_take failed: %d\n", threadno, ret);
-    }
-  else
-    {
-      /* Hang on to the thread until the middle priority thread runs */
-
-      while (g_middlestate == NOTSTARTED && nhighpri_waiting() < NHIGHPRI_THREADS)
-        {
-          printf("lowpri_thread-%d: Waiting for the midle pri task to run\n", threadno);
-          printf("    g_middlestate:  %d\n", (int)g_middlestate);
-          for (i = 0; i < NHIGHPRI_THREADS; i++)
-            {
-              printf("    g_highstate[%d]: %d\n", i, (int)g_highstate[i]);
-            }
-          printf("    I still have a count on the semaphore\n");
-          sem_enumholders(&g_sem);
-          FFLUSH();
-          sleep(1);
-        }
-
-      /* Account for all of the semaphore counts.  At any given time if there are 'n'
-       * running hight prioity tasks, then the semaphore count should be '-n'
-       */
-
-      sched_lock(); /* Needs to be atomic */
-      ret      = sem_getvalue(&g_sem, &count);
-      nwaiting = nhighpri_waiting();
-      sched_unlock();
-
-      if (ret < 0)
-        {
-          printf("lowpri_thread-%d: ERROR sem_getvalue failed: %d\n", threadno, errno);
-        }
-      printf("lowpri_thread-%d: Sem count: %d, No. highpri thread: %d\n", threadno, count, nwaiting);
-
-      /* The middle priority task is running, let go of the semaphore */
-
-      if (g_middlestate == RUNNING && nwaiting == -count)
-        {
-          /* Good.. the middle priority task is still running and the counts are okay. */
-
-          retval = NULL;
-        }
-      else
-        {
-          /* If the sem count is positive, then there all of the higher priority threads
-           * should have already completed.
-           */
-
-          printf("lowpri_thread-%d: %s the middle priority task has already exitted!\n",
-                 threadno, count >= 0 ? "SUCCESS" : "ERROR" );
-          printf("               g_middlestate:  %d sem count=%d\n", (int)g_middlestate, count);
-          for (i = 0; i < NHIGHPRI_THREADS; i++)
-            {
-              printf("               g_highstate[%d]: %d\n", i, (int)g_highstate[i]);
-            }
-        }
-    }
-
-  ret = pthread_getschedparam(pthread_self(), &policy, &sparam);
-  sem_enumholders(&g_sem);
-  sem_post(&g_sem);
-  if (ret != 0)
-    {
-      printf("lowpri_thread-%d: ERROR pthread_getschedparam failed: %d\n", threadno, ret);
-    }
-  else
-    {
-      if (nwaiting > 0)
-        {
-          expected = g_highpri;
-        }
-      else
-        {
-          expected = g_lowpri;
-        }
-
-      printf("lowpri_thread-%d: %s priority before sem_post: %d\n",
-             threadno,
-             sparam.sched_priority != expected ? "ERROR" : "SUCCESS",
-             sparam.sched_priority);
-
-      if (sparam.sched_priority != expected)
-        {
-          printf("               ERROR should have been %d\n", expected);
-        }
-    }
-
-  ret = pthread_getschedparam(pthread_self(), &policy, &sparam);
-  if (ret != 0)
-    {
-      printf("lowpri_thread-%d: ERROR pthread_getschedparam failed: %d\n", threadno, ret);
-    }
-  else
-    {
-      printf("lowpri_thread-%d: %s final priority: %d\n",
-             threadno,
-             sparam.sched_priority != g_lowpri ? "ERROR" : "SUCCESS",
-             sparam.sched_priority);
-
-      if (sparam.sched_priority != g_lowpri)
-        {
-          printf("               ERROR should have been %d\n", g_lowpri);
-        } 
-    }
-  sem_enumholders(&g_sem);
-
-  printf("lowpri_thread-%d: Okay... I'm done!\n", threadno);
-  FFLUSH();
-  g_lowstate[threadno-1] = DONE;
-  return retval;  
-}
-#endif /* CONFIG_PRIORITY_INHERITANCE && !CONFIG_DISABLE_SIGNALS && !CONFIG_DISABLE_PTHREAD */
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: priority_inheritance
- ****************************************************************************/
-
-void priority_inheritance(void)
-{
-#if defined(CONFIG_PRIORITY_INHERITANCE) && !defined(CONFIG_DISABLE_SIGNALS) && !defined(CONFIG_DISABLE_PTHREAD)
-  pthread_t lowpri[NLOWPRI_THREADS];
-  pthread_t medpri;
-  pthread_t highpri[NHIGHPRI_THREADS];
-  pthread_addr_t result;
-  pthread_attr_t attr;
-  struct sched_param sparam;
-  int my_pri;
-  int status;
-  int i;
-
-  printf("priority_inheritance: Started\n");
-
-  g_middlestate = NOTSTARTED;
-  for (i = 0; i < NHIGHPRI_THREADS; i++) g_highstate[i] = NOTSTARTED;
-  for (i = 0; i < NLOWPRI_THREADS; i++)  g_lowstate[i]  = NOTSTARTED;
-
-  status = sched_getparam (getpid(), &sparam);
-  if (status != 0)
-    {
-      printf("priority_inheritance: sched_getparam failed\n");
-      sparam.sched_priority = PTHREAD_DEFAULT_PRIORITY;
-    }
-  my_pri  = sparam.sched_priority;
-
-  g_highpri = sched_get_priority_max(SCHED_FIFO);
-  g_lowpri = sched_get_priority_min(SCHED_FIFO);
-  g_medpri = my_pri - 1;
-
-  sem_init(&g_sem, 0, NLOWPRI_THREADS);
-  dump_nfreeholders("priority_inheritance:");
-
-  /* Start the low priority threads */
-
-  for (i = 0; i < NLOWPRI_THREADS; i++)
-    {
-      int threadno = i+1;
-      printf("priority_inheritance: Starting lowpri_thread-%d (of %d) at %d\n",
-             threadno, NLOWPRI_THREADS, g_lowpri);
-      status = pthread_attr_init(&attr);
-      if (status != 0)
-        {
-          printf("priority_inheritance: pthread_attr_init failed, status=%d\n", status);
-        }
-      sparam.sched_priority = g_lowpri;
-      status = pthread_attr_setschedparam(&attr,& sparam);
-      if (status != OK)
-        {
-          printf("priority_inheritance: pthread_attr_setschedparam failed, status=%d\n", status);
-        }
-      else
-        {
-          printf("priority_inheritance: Set lowpri_thread-%d priority to %d\n",
-                 threadno, sparam.sched_priority);
-        }
-
-      status = pthread_create(&lowpri[i], &attr, lowpri_thread, (void*)threadno);
-      if (status != 0)
-        {
-          printf("priority_inheritance: pthread_create failed, status=%d\n", status);
-        }
-    }
-  printf("priority_inheritance: Waiting...\n");
-  sleep(2);
-  dump_nfreeholders("priority_inheritance:");
-
-  /* Start the medium priority thread */
-
-  printf("priority_inheritance: Starting medpri_thread at %d\n", g_medpri);
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("priority_inheritance: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  sparam.sched_priority = g_medpri;
-  status = pthread_attr_setschedparam(&attr,& sparam);
-  if (status != OK)
-    {
-      printf("priority_inheritance: pthread_attr_setschedparam failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("priority_inheritance: Set medpri_thread priority to %d\n", sparam.sched_priority);
-    }
-  FFLUSH();
-
-  status = pthread_create(&medpri, &attr, medpri_thread, NULL);
-  if (status != 0)
-    {
-      printf("priority_inheritance: pthread_create failed, status=%d\n", status);
-    }
-  printf("priority_inheritance: Waiting...\n");
-  sleep(1);
-  dump_nfreeholders("priority_inheritance:");
-
-  /* Start the high priority threads */
-
-  for (i = 0; i < NHIGHPRI_THREADS; i++)
-    {
-      int threadno = i+1;
-      printf("priority_inheritance: Starting highpri_thread-%d (of %d) at %d\n",
-             threadno, NHIGHPRI_THREADS, g_highpri);
-      status = pthread_attr_init(&attr);
-      if (status != 0)
-        {
-          printf("priority_inheritance: pthread_attr_init failed, status=%d\n", status);
-        }
-
-      sparam.sched_priority = g_highpri - i;
-      status = pthread_attr_setschedparam(&attr,& sparam);
-      if (status != OK)
-        {
-          printf("priority_inheritance: pthread_attr_setschedparam failed, status=%d\n", status);
-        }
-      else
-        {
-          printf("priority_inheritance: Set highpri_thread-%d priority to %d\n",
-                 threadno, sparam.sched_priority);
-        }
-      FFLUSH();
-
-      status = pthread_create(&highpri[i], &attr, highpri_thread, (void*)threadno);
-      if (status != 0)
-        {
-          printf("priority_inheritance: pthread_create failed, status=%d\n", status);
-        }
-    }
-  dump_nfreeholders("priority_inheritance:");
-  FFLUSH();
-
-  /* Wait for all thread instances to complete */
-
-  for (i = 0; i < NHIGHPRI_THREADS; i++)
-    {
-      printf("priority_inheritance: Waiting for highpri_thread-%d to complete\n", i+1);
-      FFLUSH();
-      (void)pthread_join(highpri[i], &result);
-      dump_nfreeholders("priority_inheritance:");
-  }
-  printf("priority_inheritance: Waiting for medpri_thread to complete\n");
-  FFLUSH();
-  (void)pthread_join(medpri, &result);
-  dump_nfreeholders("priority_inheritance:");
-  for (i = 0; i < NLOWPRI_THREADS; i++)
-    {
-      printf("priority_inheritance: Waiting for lowpri_thread-%d to complete\n", i+1);
-      FFLUSH();
-      (void)pthread_join(lowpri[i], &result);
-      dump_nfreeholders("priority_inheritance:");
-    }
-
-  printf("priority_inheritance: Finished\n");
-  sem_destroy(&g_sem);
-  dump_nfreeholders("priority_inheritance:");
-  FFLUSH();
-#endif /* CONFIG_PRIORITY_INHERITANCE && !CONFIG_DISABLE_SIGNALS && !CONFIG_DISABLE_PTHREAD */
-}
diff --git a/apps/examples/ostest/rmutex.c b/apps/examples/ostest/rmutex.c
deleted file mode 100644
index ffd99c2df..000000000
--- a/apps/examples/ostest/rmutex.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/***********************************************************************
- * rmutex.c
- *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-#include <stdio.h>
-#include <pthread.h>
-#include "ostest.h"
-
-#ifndef NULL
-# define NULL (void*)0
-#endif
-
-#define NTHREADS    3
-#define NLOOPS      3
-#define NRECURSIONS 3
-
-static pthread_mutex_t mut;
-
-static void thread_inner(int id, int level)
-{
-  int status;
-  if (level < NRECURSIONS)
-    {
-      /* Take the mutex */
-
-      printf("thread_inner[%d, %d]: Locking\n", id, level);
-      status = pthread_mutex_lock(&mut);
-      if (status != 0)
-        {
-          printf("thread_inner[%d, %d]: ERROR pthread_mutex_lock failed: %d\n",
-                  id, level, status);
-        }
-      printf("thread_inner[%d, %d]: Locked\n", id, level);
-
-      /* Give the other threads a chance */
-      
-      pthread_yield();
-      thread_inner(id, level+1);
-      pthread_yield();
-
-      /* Unlock the mutex */
-
-      printf("thread_inner[%d, %d]: Unlocking\n", id, level);
-      status = pthread_mutex_unlock(&mut);
-      if (status != 0)
-        {
-          printf("thread_inner[%d, %d]: ERROR pthread_mutex_unlock failed: %d\n",
-                 id, level, status);
-        }
-      printf("thread_inner[%d, %d]: Unlocked\n", id, level);
-      pthread_yield();
-    }
-}
-
-static void *thread_outer(void *parameter)
-{
-  int i;
-  printf("thread_outer[%d]: Started\n", (int)parameter);
-  for (i = 0; i < NLOOPS; i++)
-    {
-      printf("thread_outer[%d]: Loop %d\n", (int)parameter, i);
-      thread_inner((int)parameter, 0);
-    }
-  printf("thread_outer[%d]: Exitting\n", (int)parameter);
-  pthread_exit(NULL);
-  return NULL; /* Non-reachable -- needed for some compilers */
-}
-
-void recursive_mutex_test(void)
-{
-  pthread_t thread[NTHREADS];
-#ifdef SDCC
-  pthread_addr_t result[NTHREADS];
-  pthread_attr_t attr;
-#endif
-  pthread_mutexattr_t mattr;
-  int type;
-  int status;
-  int i;
-
-  /* Initialize the mutex attributes */
-
-  pthread_mutexattr_init(&mattr);
-  status = pthread_mutexattr_settype(&mattr, PTHREAD_MUTEX_RECURSIVE);
-  if (status != 0)
-    {
-      printf("recursive_mutex_test: ERROR pthread_mutexattr_settype failed, status=%d\n", status);
-    }
-
-  status = pthread_mutexattr_gettype(&mattr, &type);
-  if (status != 0)
-    {
-      printf("recursive_mutex_test: ERROR pthread_mutexattr_gettype failed, status=%d\n", status);
-    }
-  if (type != PTHREAD_MUTEX_RECURSIVE)
-    {
-      printf("recursive_mutex_test: ERROR pthread_mutexattr_gettype return type=%d\n", type);
-    }
-  
-  /* Initialize the mutex */
-
-  printf("recursive_mutex_test: Initializing mutex\n");
-  pthread_mutex_init(&mut, &mattr);
-
-  /* Start the threads -- all at the same, default priority */
-
-  for (i = 0; i < NTHREADS; i++)
-    {
-      printf("recursive_mutex_test: Starting thread %d\n", i+1);
-#ifdef SDCC
-      (void)pthread_attr_init(&attr);
-      status = pthread_create(&thread[i], &attr, thread_outer, (pthread_addr_t)i+1);
-#else
-      status = pthread_create(&thread[i], NULL, thread_outer, (pthread_addr_t)i+1);
-#endif
-      if (status != 0)
-        {
-          printf("recursive_mutex_test: ERRROR thread#%d creation: %d\n", i+1, status);
-        }
-    }
-
-  /* Wait for all; of the threads to complete */
-
-  for (i = 0; i < NTHREADS; i++)
-    {
-      printf("recursive_mutex_test: Waiting for thread %d\n", i+1);
-#ifdef SDCC
-      pthread_join(thread[i], &result1);
-#else
-      pthread_join(thread[i], NULL);
-#endif
-    }
-
-  printf("recursive_mutex_test: Complete\n");
-}
diff --git a/apps/examples/ostest/roundrobin.c b/apps/examples/ostest/roundrobin.c
deleted file mode 100644
index bfd344df3..000000000
--- a/apps/examples/ostest/roundrobin.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/********************************************************************************
- * examples/ostest/roundrobin.c
- *
- *   Copyright (C) 2007, 2008, 2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ********************************************************************************/
-
-/********************************************************************************
- * Included Files
- ********************************************************************************/
-
-#include <nuttx/config.h>
-#include <stdio.h>
-#include <stdbool.h>
-#include "ostest.h"
-
-#if CONFIG_RR_INTERVAL > 0
-
-/********************************************************************************
- * Definitions
- ********************************************************************************/
-
-/* This numbers should be tuned for different processor speeds via .config file.
- * With default values the test takes about 30s on Cortex-M3 @ 24MHz. With 32767
- * range and 10 runs it takes ~320s. */
-
-#ifndef CONFIG_EXAMPLES_OSTEST_RR_RANGE
-#  define CONFIG_EXAMPLES_OSTEST_RR_RANGE 10000
-#  warning "CONFIG_EXAMPLES_OSTEST_RR_RANGE undefined, using default value = 10000"
-#elif (CONFIG_EXAMPLES_OSTEST_RR_RANGE < 1) || (CONFIG_EXAMPLES_OSTEST_RR_RANGE > 32767)
-#  define CONFIG_EXAMPLES_OSTEST_RR_RANGE 10000
-#  warning "Invalid value of CONFIG_EXAMPLES_OSTEST_RR_RANGE, using default value = 10000"
-#endif
-
-#ifndef CONFIG_EXAMPLES_OSTEST_RR_RUNS
-#  define CONFIG_EXAMPLES_OSTEST_RR_RUNS 10
-#  warning "CONFIG_EXAMPLES_OSTEST_RR_RUNS undefined, using default value = 10"
-#elif (CONFIG_EXAMPLES_OSTEST_RR_RUNS < 1) || (CONFIG_EXAMPLES_OSTEST_RR_RUNS > 32767)
-#  define CONFIG_EXAMPLES_OSTEST_RR_RUNS 10
-#  warning "Invalid value of CONFIG_EXAMPLES_OSTEST_RR_RUNS, using default value = 10"
-#endif
-
-/********************************************************************************
- * Private Functions
- ********************************************************************************/
-
-/********************************************************************************
- * Name: get_primes
- *
- * Description
- *   This function searches for prime numbers in the most primitive way possible.
- ********************************************************************************/
-
-static void get_primes(int *count, int *last)
-{
-  int number;
-  int local_count = 0;
-  *last = 0;    // to make compiler happy
-
-  for (number = 1; number < CONFIG_EXAMPLES_OSTEST_RR_RANGE; number++)
-  {
-    int div;
-    bool is_prime = true;
-
-    for (div = 2; div <= number / 2; div++)
-      if (number % div == 0)
-      {
-        is_prime = false;
-        break;
-      }
-
-    if (is_prime)
-    {
-      local_count++;
-      *last = number;
-#if 0 /* We don't really care what the numbers are */
-      printf(" Prime %d: %d\n", local_count, number);
-#endif
-    }
-  }
-
-  *count = local_count;
-}
-
-/********************************************************************************
- * Name: get_primes_thread
- ********************************************************************************/
-
-static void *get_primes_thread(void *parameter)
-{
-  int id = (int)parameter;
-  int i, count, last;
-
-  printf("get_primes_thread id=%d started, looking for primes < %d, doing %d run(s)\n",
-         id, CONFIG_EXAMPLES_OSTEST_RR_RANGE, CONFIG_EXAMPLES_OSTEST_RR_RUNS);
-
-  for (i = 0; i < CONFIG_EXAMPLES_OSTEST_RR_RUNS; i++)
-    {
-      get_primes(&count, &last);
-    }
-
-  printf("get_primes_thread id=%d finished, found %d primes, last one was %d\n",
-         id, count, last);
-
-  pthread_exit(NULL);
-  return NULL; /* To keep some compilers happy */
-}
-
-/********************************************************************************
- * Public Functions
- ********************************************************************************/
-
-/********************************************************************************
- * Name: rr_test
- ********************************************************************************/
-
-void rr_test(void)
-{
-  pthread_t get_primes1_thread;
-  pthread_t get_primes2_thread;
-  struct sched_param sparam;
-  pthread_attr_t attr;
-  pthread_addr_t result;
-  int status;
-
-  status = pthread_attr_init(&attr);
-  if (status != OK)
-    {
-      printf("rr_test: pthread_attr_init failed, status=%d\n",  status);
-    }
-
-  sparam.sched_priority = sched_get_priority_min(SCHED_FIFO);
-  status = pthread_attr_setschedparam(&attr, &sparam);
-  if (status != OK)
-    {
-      printf("rr_test: pthread_attr_setschedparam failed, status=%d\n",  status);
-    }
-  else
-    {
-      printf("rr_test: Set thread priority to %d\n",  sparam.sched_priority);
-    }
-
-  status = pthread_attr_setschedpolicy(&attr, SCHED_RR);
-  if (status != OK)
-    {
-      printf("rr_test: pthread_attr_setschedpolicy failed, status=%d\n",  status);
-    }
-  else
-    {
-      printf("rr_test: Set thread policy to SCHED_RR\n");
-    }
-
-  printf("rr_test: Starting first get_primes_thread\n");
-
-  status = pthread_create(&get_primes1_thread, &attr, get_primes_thread, (void*)1);
-  if (status != 0)
-    {
-      printf("rr_test: Error in thread 1 creation, status=%d\n",  status);
-    }
-
-  printf("rr_test: Starting second get_primes_thread\n");
-
-  status = pthread_create(&get_primes2_thread, &attr, get_primes_thread, (void*)2);
-  if (status != 0)
-    {
-      printf("rr_test: Error in thread 2 creation, status=%d\n",  status);
-    }
-
-  printf("rr_test: Waiting for threads to complete -- this should take awhile\n");
-  printf("rr_test: If RR scheduling is working, they should start and complete at\n");
-  printf("rr_test: about the same time\n");
-
-  pthread_join(get_primes2_thread, &result);
-  pthread_join(get_primes1_thread, &result);
-  printf("rr_test: Done\n");
-}
-
-#endif /* CONFIG_RR_INTERVAL */
diff --git a/apps/examples/ostest/sem.c b/apps/examples/ostest/sem.c
deleted file mode 100644
index 48be57a85..000000000
--- a/apps/examples/ostest/sem.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/***********************************************************************
- * sem.c
- *
- *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-#include <stdio.h>
-#include <pthread.h>
-#include <semaphore.h>
-#include <sched.h>
-#include "ostest.h"
-
-#ifndef NULL
-# define NULL (void*)0
-#endif
-
-static sem_t sem;
-
-static void *waiter_func(void *parameter)
-{
-  int id = (int)parameter;
-  int status;
-  int value;
-
-  printf("waiter_func: Thread %d Started\n",  id);
-
-  /* Take the semaphore */
-
-  status = sem_getvalue(&sem, &value);
-  if (status < 0)
-    {
-      printf("waiter_func: ERROR thread %d could not get semaphore value\n",  id);
-    }
-  else
-    {
-      printf("waiter_func: Thread %d initial semaphore value = %d\n",  id, value);
-    }
-
-  printf("waiter_func: Thread %d waiting on semaphore\n",  id);
-  status = sem_wait(&sem);
-  if (status != 0)
-    {
-      printf("waiter_func: ERROR thread %d sem_wait failed\n",  id);
-    }
-  printf("waiter_func: Thread %d awakened\n",  id);
-
-  status = sem_getvalue(&sem, &value);
-  if (status < 0)
-    {
-      printf("waiter_func: ERROR thread %d could not get semaphore value\n",  id);
-    }
-  else
-    {
-      printf("waiter_func: Thread %d new semaphore value = %d\n",  id, value);
-    }
-
-  printf("waiter_func: Thread %d done\n",  id);
-  return NULL;
-}
-
-static void *poster_func(void *parameter)
-{
-  int id = (int)parameter;
-  int status;
-  int value;
-
-  printf("poster_func: Thread %d started\n",  id);
-
-  /* Take the semaphore */
-
-  do
-    {
-      status = sem_getvalue(&sem, &value);
-      if (status < 0)
-        {
-          printf("poster_func: ERROR thread %d could not get semaphore value\n",  id);
-        }
-      else
-        {
-          printf("poster_func: Thread %d semaphore value = %d\n",  id, value);
-        }
-
-      if (value < 0)
-        {
-          printf("poster_func: Thread %d posting semaphore\n",  id);
-          status = sem_post(&sem);
-          if (status != 0)
-            {
-              printf("poster_func: ERROR thread %d sem_wait failed\n",  id);
-            }
-
-          pthread_yield();
-
-          status = sem_getvalue(&sem, &value);
-          if (status < 0)
-            {
-              printf("poster_func: ERROR thread %d could not get semaphore value\n",  id);
-            }
-          else
-            {
-              printf("poster_func: Thread %d new semaphore value = %d\n",  id, value);
-            }
-        }
-    }
-  while (value < 0);
-
-  printf("poster_func: Thread %d done\n",  id);
-  return NULL;
-
-}
-
-void sem_test(void)
-{
-  pthread_t waiter_thread1;
-  pthread_t waiter_thread2;
-  pthread_t poster_thread;
-#ifdef SDCC
-  pthread_addr_t result;
-#endif
-  struct sched_param sparam;
-  int prio_min;
-  int prio_max;
-  int prio_mid;
-  pthread_attr_t attr;
-  int status;
-
-  printf("sem_test: Initializing semaphore to 0\n");
-  sem_init(&sem, 0, 0);
-
-  /* Start two waiter thread instances */
-
-  printf("sem_test: Starting waiter thread 1\n");
-  status = pthread_attr_init(&attr);
-  if (status != OK)
-    {
-      printf("sem_test: pthread_attr_init failed, status=%d\n",  status);
-    }
-
-  prio_min = sched_get_priority_min(SCHED_FIFO);
-  prio_max = sched_get_priority_max(SCHED_FIFO);
-  prio_mid = (prio_min + prio_max) / 2;
-
-  sparam.sched_priority = (prio_mid + prio_max) / 2;
-  status = pthread_attr_setschedparam(&attr,&sparam);
-  if (status != OK)
-    {
-      printf("sem_test: pthread_attr_setschedparam failed, status=%d\n",  status);
-    }
-  else
-    {
-      printf("sem_test: Set thread 1 priority to %d\n",  sparam.sched_priority);
-    }
-
-  status = pthread_create(&waiter_thread1, &attr, waiter_func, (pthread_addr_t)1);
-  if (status != 0)
-    {
-      printf("sem_test: Error in thread 1 creation, status=%d\n",  status);
-    }
-
-  printf("sem_test: Starting waiter thread 2\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("sem_test: pthread_attr_init failed, status=%d\n",  status);
-    }
-
-  sparam.sched_priority = prio_mid;
-  status = pthread_attr_setschedparam(&attr,&sparam);
-  if (status != OK)
-    {
-      printf("sem_test: pthread_attr_setschedparam failed, status=%d\n",  status);
-    }
-  else
-    {
-      printf("sem_test: Set thread 2 priority to %d\n",  sparam.sched_priority);
-    }
-
-  status = pthread_create(&waiter_thread2, &attr, waiter_func, (pthread_addr_t)2);
-  if (status != 0)
-    {
-      printf("sem_test: Error in thread 2 creation, status=%d\n",  status);
-    }
-
-  printf("sem_test: Starting poster thread 3\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("sem_test: pthread_attr_init failed, status=%d\n",  status);
-    }
-
-  sparam.sched_priority = (prio_min + prio_mid) / 2;
-  status = pthread_attr_setschedparam(&attr,&sparam);
-  if (status != OK)
-    {
-      printf("sem_test: pthread_attr_setschedparam failed, status=%d\n",  status);
-    }
-  else
-    {
-      printf("sem_test: Set thread 3 priority to %d\n",  sparam.sched_priority);
-    }
-
-  status = pthread_create(&poster_thread, &attr, poster_func, (pthread_addr_t)3);
-  if (status != 0)
-    {
-      printf("sem_test: Error in thread 3 creation, status=%d\n",  status);
-    }
-
-#ifdef SDCC
-  pthread_join(waiter_thread1, &result);
-  pthread_join(waiter_thread2, &result);
-  pthread_join(poster_thread, &result);
-#else
-  pthread_join(waiter_thread1, NULL);
-  pthread_join(waiter_thread2, NULL);
-  pthread_join(poster_thread, NULL);
-#endif
-}
diff --git a/apps/examples/ostest/sighand.c b/apps/examples/ostest/sighand.c
deleted file mode 100644
index 32b182c21..000000000
--- a/apps/examples/ostest/sighand.c
+++ /dev/null
@@ -1,330 +0,0 @@
-/***********************************************************************
- * apps/examples/ostest/sighand.c
- *
- *   Copyright (C) 2007, 2008, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-#include <sys/types.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <semaphore.h>
-#include <signal.h>
-#include <sched.h>
-#include <errno.h>
-#include "ostest.h"
-
-#ifndef NULL
-# define NULL (void*)0
-#endif
-
-#define WAKEUP_SIGNAL 17
-#define SIGVALUE_INT  42
-
-static sem_t sem;
-static bool sigreceived = false;
-static bool threadexited = false;
-
-#ifdef CONFIG_SCHED_HAVE_PARENT
-static void death_of_child(int signo, siginfo_t *info, void *ucontext)
-{
-  /* Use of printf in a signal handler is NOT safe! It can cause deadlocks!
-   * Also, signals are not queued by NuttX.  As a consequence, some
-   * notifications will get lost (or the info data can be overwrittedn)! 
-   * Because POSIX  does not require signals to be queued, I do not think
-   * that this is a bug (the overwriting is a bug, however).
-   */
-
-  if (info)
-    {
-      printf("death_of_child: PID %d received signal=%d code=%d pid=%d status=%d\n",
-             getpid(), signo, info->si_code, info->si_pid, info->si_status);
-    }
-  else
-    {
-      printf("death_of_child: PID %d received signal=%d (no info?)\n",
-             getpid(), signo);
-    }
-}
-#endif
-
-static void wakeup_action(int signo, siginfo_t *info, void *ucontext)
-{
-  sigset_t oldset;
-  sigset_t allsigs;
-  int status;
-
-  /* Use of printf in a signal handler is NOT safe! It can cause deadlocks! */
-
-  printf("wakeup_action: Received signal %d\n" , signo);
-
-  sigreceived = true;
-
-  /* Check signo */
-
-  if (signo != WAKEUP_SIGNAL)
-    {
-      printf("wakeup_action: ERROR expected signo=%d\n" , WAKEUP_SIGNAL);
-    }
-
-  /* Check siginfo */
-
-  if (info->si_value.sival_int != SIGVALUE_INT)
-    {
-      printf("wakeup_action: ERROR sival_int=%d expected %d\n",
-              info->si_value.sival_int, SIGVALUE_INT);
-    }
-  else
-    {
-      printf("wakeup_action: sival_int=%d\n" , info->si_value.sival_int);
-    }
-
-  if (info->si_signo != WAKEUP_SIGNAL)
-    {
-      printf("wakeup_action: ERROR expected si_signo=%d, got=%d\n",
-               WAKEUP_SIGNAL, info->si_signo);
-    }
-
-  printf("wakeup_action: si_code=%d\n" , info->si_code);
-
-  /* Check ucontext_t */
-
-  printf("wakeup_action: ucontext=%p\n" , ucontext);
-
-  /* Check sigprocmask */
-
-  (void)sigfillset(&allsigs);
-  status = sigprocmask(SIG_SETMASK, NULL, &oldset);
-  if (status != OK)
-    {
-      printf("wakeup_action: ERROR sigprocmask failed, status=%d\n",
-              status);
-    }
-
-  if (oldset != allsigs)
-    {
-      printf("wakeup_action: ERROR sigprocmask=%x expected=%x\n",
-              oldset, allsigs);
-    }
-}
-
-static int waiter_main(int argc, char *argv[])
-{
-  sigset_t sigset;
-  struct sigaction act;
-  struct sigaction oact;
-  int status;
-
-  printf("waiter_main: Waiter started\n" );
-
-  printf("waiter_main: Unmasking signal %d\n" , WAKEUP_SIGNAL);
-  (void)sigemptyset(&sigset);
-  (void)sigaddset(&sigset, WAKEUP_SIGNAL);
-  status = sigprocmask(SIG_UNBLOCK, &sigset, NULL);
-  if (status != OK)
-    {
-      printf("waiter_main: ERROR sigprocmask failed, status=%d\n",
-              status);
-    }
-
-  printf("waiter_main: Registering signal handler\n" );
-  act.sa_sigaction = wakeup_action;
-  act.sa_flags  = SA_SIGINFO;
-
-  (void)sigfillset(&act.sa_mask);
-  (void)sigdelset(&act.sa_mask, WAKEUP_SIGNAL);
-
-  status = sigaction(WAKEUP_SIGNAL, &act, &oact);
-  if (status != OK)
-    {
-      printf("waiter_main: ERROR sigaction failed, status=%d\n" , status);
-    }
-
-#ifndef SDCC
-  printf("waiter_main: oact.sigaction=%p oact.sa_flags=%x oact.sa_mask=%x\n",
-          oact.sa_sigaction, oact.sa_flags, oact.sa_mask);
-#endif
-
-  /* Take the semaphore */
-
-  printf("waiter_main: Waiting on semaphore\n" );
-  FFLUSH();
-
-  status = sem_wait(&sem);
-  if (status != 0)
-    {
-      int error = errno;
-      if (error == EINTR)
-        {
-          printf("waiter_main: sem_wait() successfully interrupted by signal\n" );
-        }
-      else
-        {
-          printf("waiter_main: ERROR sem_wait failed, errno=%d\n" , error);
-        }
-    }
-  else
-    {
-      printf("waiter_main: ERROR awakened with no error!\n" );
-    }
-
-  /* Detach the signal handler */
-
-  act.sa_sigaction = SIG_DFL;
-  status = sigaction(WAKEUP_SIGNAL, &act, &oact);
-
-  printf("waiter_main: done\n" );
-  FFLUSH();
-
-  threadexited = true;
-  return 0;
-}
-
-void sighand_test(void)
-{
-#ifdef CONFIG_SCHED_HAVE_PARENT
-  struct sigaction act;
-  struct sigaction oact;
-  sigset_t sigset;
-#endif
-  struct sched_param param;
-  union sigval sigvalue;
-  pid_t waiterpid;
-  int policy;
-  int status;
-
-  printf("sighand_test: Initializing semaphore to 0\n" );
-  sem_init(&sem, 0, 0);
-
-#ifdef CONFIG_SCHED_HAVE_PARENT
-  printf("sighand_test: Unmasking SIGCHLD\n");
-
-  (void)sigemptyset(&sigset);
-  (void)sigaddset(&sigset, SIGCHLD);
-  status = sigprocmask(SIG_UNBLOCK, &sigset, NULL);
-  if (status != OK)
-    {
-      printf("sighand_test: ERROR sigprocmask failed, status=%d\n",
-              status);
-    }
-
-  printf("sighand_test: Registering SIGCHLD handler\n" );
-  act.sa_sigaction = death_of_child;
-  act.sa_flags  = SA_SIGINFO;
-
-  (void)sigfillset(&act.sa_mask);
-  (void)sigdelset(&act.sa_mask, SIGCHLD);
-
-  status = sigaction(SIGCHLD, &act, &oact);
-  if (status != OK)
-    {
-      printf("waiter_main: ERROR sigaction failed, status=%d\n" , status);
-    }
-#endif
-
-  /* Start waiter thread  */
-
-  printf("sighand_test: Starting waiter task\n" );
-  status = sched_getparam (0, &param);
-  if (status != OK)
-    {
-      printf("sighand_test: ERROR sched_getparam() failed\n" );
-      param.sched_priority = PTHREAD_DEFAULT_PRIORITY;
-    }
-
-  policy = sched_getscheduler(0);
-  if (policy == ERROR)
-    {
-      printf("sighand_test: ERROR sched_getscheduler() failed\n" );
-      policy = SCHED_FIFO;
-    }
-
-  waiterpid = task_create("waiter", param.sched_priority,
-                           PTHREAD_STACK_DEFAULT, waiter_main, NULL);
-  if (waiterpid == ERROR)
-    {
-      printf("sighand_test: ERROR failed to start waiter_main\n" );
-    }
-  else
-    {
-      printf("sighand_test: Started waiter_main pid=%d\n", waiterpid);
-    }
-
-  /* Wait a bit */
-
-  FFLUSH();
-  sleep(2);
-
-  /* Then signal the waiter thread. */
-
-  printf("sighand_test: Signaling pid=%d with signo=%d sigvalue=%d\n",
-         waiterpid, WAKEUP_SIGNAL, SIGVALUE_INT);
-
-  sigvalue.sival_int = SIGVALUE_INT;
-#ifdef CONFIG_CAN_PASS_STRUCTS
-  status = sigqueue(waiterpid, WAKEUP_SIGNAL, sigvalue);
-#else
-  status = sigqueue(waiterpid, WAKEUP_SIGNAL, sigvalue.sival_ptr);
-#endif
-  if (status != OK)
-    {
-      printf("sighand_test: ERROR sigqueue failed\n" );
-      task_delete(waiterpid);
-    }
-
-  /* Wait a bit */
-
-  FFLUSH();
-  sleep(2);
-
-  /* Then check the result */
-
-  if (!threadexited)
-    {
-      printf("sighand_test: ERROR waiter task did not exit\n" );
-    }
-
-  if (!sigreceived)
-    {
-      printf("sighand_test: ERROR signal handler did not run\n" );
-    }
-
-  /* Detach the signal handler */
-
-#ifdef CONFIG_SCHED_HAVE_PARENT
-  act.sa_sigaction = SIG_DFL;
-  status = sigaction(SIGCHLD, &act, &oact);
-#endif
-
-  printf("sighand_test: done\n" );
-  FFLUSH();
-}
diff --git a/apps/examples/ostest/timedmqueue.c b/apps/examples/ostest/timedmqueue.c
deleted file mode 100644
index 6c3269e84..000000000
--- a/apps/examples/ostest/timedmqueue.c
+++ /dev/null
@@ -1,387 +0,0 @@
-/**************************************************************************
- * apps/examples/ostest/mqueue.c
- *
- *   Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- **************************************************************************/
-
-/**************************************************************************
- * Included Files
- **************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <pthread.h>
-#include <mqueue.h>
-#include <sched.h>
-#include <errno.h>
-
-#include "ostest.h"
-
-/**************************************************************************
- * Private Definitions
- **************************************************************************/
-
-#define TEST_MESSAGE        "This is a test and only a test"
-#if defined(SDCC) || defined(__ZILOG__)
-   /* Cannot use strlen in array size */
-
-#  define TEST_MSGLEN         (31)
-#else
-   /* Message lenght is the size of the message plus the null terminator */
-
-#  define TEST_MSGLEN         (strlen(TEST_MESSAGE)+1)
-#endif
-
-#define TEST_SEND_NMSGS     (10)
-#define TEST_RECEIVE_NMSGS  (10)
-
-/**************************************************************************
- * Private Types
- **************************************************************************/
-
-/**************************************************************************
- * Private Function Prototypes
- **************************************************************************/
-
-/**************************************************************************
- * Global Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Variables
- **************************************************************************/
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-/**************************************************************************
- * Public Functions
- **************************************************************************/
-
-static void *sender_thread(void *arg)
-{
-  mqd_t mqfd;
-  char msg_buffer[TEST_MSGLEN];
-  struct mq_attr attr;
-  int status = 0;
-  int nerrors = 0;
-  int i;
-
-  printf("sender_thread: Starting\n");
-
-  /* Fill in attributes for message queue */
-
-  attr.mq_maxmsg  = TEST_SEND_NMSGS-1;
-  attr.mq_msgsize = TEST_MSGLEN;
-  attr.mq_flags   = 0;
-
-  /* Set the flags for the open of the queue.
-   * Make it a blocking open on the queue, meaning it will block if
-   * this process tries to send to the queue and the queue is full.
-   *
-   *   O_CREAT - the queue will get created if it does not already exist.
-   *   O_WRONLY - we are only planning to write to the queue.
-   *
-   * Open the queue, and create it if the receiving process hasn't
-   * already created it.
-   */
-
-  mqfd = mq_open("testmq", O_WRONLY|O_CREAT, 0666, &attr);
-  if (mqfd < 0)
-    {
-        printf("sender_thread: ERROR mq_open failed\n");
-        pthread_exit((pthread_addr_t)1);
-    }
-
-  /* Fill in a test message buffer to send */
-
-  memcpy(msg_buffer, TEST_MESSAGE, TEST_MSGLEN);
-
-  /* Perform the send TEST_SEND_NMSGS times */
-
-  for (i = 0; i < TEST_SEND_NMSGS; i++)
-    {
-       struct timespec ts;
-       status = clock_gettime(CLOCK_REALTIME, &ts);
-       if (status != 0)
-         {
-           printf("sender_thread: ERROR clock_gettime failed\n");
-         }
-       ts.tv_sec += 5;
-
-      /* The first TEST_SEND_NMSGS-1 send should succeed.  The last
-       * one should fail with errno == ETIMEDOUT
-       */
-
-      status = mq_timedsend(mqfd, msg_buffer, TEST_MSGLEN, 42, &ts);
-      if (status < 0)
-        {
-          if (i == TEST_SEND_NMSGS-1 && errno == ETIMEDOUT)
-            {
-              printf("sender_thread: mq_timedsend %d timed out as expected\n", i);
-            }
-          else
-            {
-              printf("sender_thread: ERROR mq_timedsend failure=%d on msg %d\n", errno, i);
-              nerrors++;
-            }
-        }
-      else
-        {
-          if (i == TEST_SEND_NMSGS-1)
-            {
-              printf("sender_thread: ERROR mq_timedsend of msg %d succeeded\n", i);
-              nerrors++;
-            }
-          else
-            {
-              printf("sender_thread: mq_timedsend succeeded on msg %d\n", i);
-            }
-        }
-    }
-
-  /* Close the queue and return success */
-
-  if (mq_close(mqfd) < 0)
-    {
-      printf("sender_thread: ERROR mq_close failed\n");
-    }
-
-  printf("sender_thread: returning nerrors=%d\n", nerrors);
-  FFLUSH();
-  return (pthread_addr_t)nerrors;
-}
-
-static void *receiver_thread(void *arg)
-{
-  mqd_t mqfd;
-  char msg_buffer[TEST_MSGLEN];
-  struct mq_attr attr;
-  int nbytes;
-  int nerrors = 0;
-  int i;
-
-  printf("receiver_thread: Starting\n");
-
-  /* Fill in attributes for message queue */
-
-  attr.mq_maxmsg  = TEST_SEND_NMSGS-1;
-  attr.mq_msgsize = TEST_MSGLEN;
-  attr.mq_flags   = 0;
-
-  /* Set the flags for the open of the queue.
-   * Make it a blocking open on the queue, meaning it will block if
-   * this process tries to* send to the queue and the queue is full.
-   *
-   *   O_CREAT - the queue will get created if it does not already exist.
-   *   O_RDONLY - we are only planning to write to the queue.
-   *
-   * Open the queue, and create it if the sending process hasn't
-   * already created it.
-   */
-
-   mqfd = mq_open("testmq", O_RDONLY|O_CREAT, 0666, &attr);
-   if (mqfd < 0)
-     {
-       printf("receiver_thread: ERROR mq_open failed\n");
-       pthread_exit((pthread_addr_t)1);
-     }
-
-   /* Perform the receive TEST_RECEIVE_NMSGS times */
-
-   for (i = 0; i < TEST_RECEIVE_NMSGS; i++)
-    {
-       struct timespec ts;
-       int status = clock_gettime(CLOCK_REALTIME, &ts);
-       if (status != 0)
-         {
-           printf("sender_thread: ERROR clock_gettime failed\n");
-         }
-       ts.tv_sec += 5;
-
-      /* The first TEST_SEND_NMSGS-1 send should succeed.  The last
-       * one should fail with errno == ETIMEDOUT
-       */
-
-      memset(msg_buffer, 0xaa, TEST_MSGLEN);
-      nbytes = mq_timedreceive(mqfd, msg_buffer, TEST_MSGLEN, 0, &ts);
-      if (nbytes < 0)
-        {
-          if (i == TEST_SEND_NMSGS-1 && errno == ETIMEDOUT)
-            {
-              printf("receiver_thread: Receive %d timed out as expected\n", i);
-            }
-          else
-            {
-              printf("receiver_thread: ERROR mq_timedreceive failure=%d on msg %d\n", errno, i);
-              nerrors++;
-            }
-        }
-      else if (nbytes != TEST_MSGLEN)
-        {
-          printf("receiver_thread: mq_timedreceive return bad size %d on msg %d\n", nbytes, i);
-          nerrors++;
-        }
-      else if (memcmp(TEST_MESSAGE, msg_buffer, nbytes) != 0)
-        {
-          int j;
-
-          printf("receiver_thread: mq_timedreceive returned corrupt message on msg %d\n", i);
-          printf("receiver_thread:                  i  Expected Received\n");
-
-          for (j = 0; j < TEST_MSGLEN-1; j++)
-            {
-              if (isprint(msg_buffer[j]))
-                {
-                 printf("receiver_thread:                  %2d %02x (%c) %02x (%c)\n",
-                         j, TEST_MESSAGE[j], TEST_MESSAGE[j], msg_buffer[j], msg_buffer[j]);
-                }
-              else
-                {
-                  printf("receiver_thread:                  %2d %02x (%c) %02x\n",
-                         j, TEST_MESSAGE[j], TEST_MESSAGE[j], msg_buffer[j]);
-                }
-            }
-          printf("receiver_thread:                  %2d 00      %02x\n",
-                  j, msg_buffer[j]);
-        }
-      else if (i == TEST_SEND_NMSGS-1)
-        {
-          printf("receiver_thread: ERROR mq_timedreceive of msg %d succeeded\n", i);
-          nerrors++;
-        }
-      else
-        {
-          printf("receiver_thread: mq_timedreceive succeeded on msg %d\n", i);
-        }
-    }
-
-  /* Close the queue and return success */
-
-  if (mq_close(mqfd) < 0)
-    {
-      printf("receiver_thread: ERROR mq_close failed\n");
-      nerrors++;
-    }
-
-  /* Destroy the queue */
-
-  if (mq_unlink("testmq") < 0)
-    {
-      printf("receiver_thread: ERROR mq_close failed\n");
-      nerrors++;
-    }
-
-  printf("receiver_thread: returning nerrors=%d\n", nerrors);
-  FFLUSH();
-  pthread_exit((pthread_addr_t)nerrors);
-  return (pthread_addr_t)nerrors;
-}
-
-void timedmqueue_test(void)
-{
-  pthread_t sender;
-  pthread_t receiver;
-  void *result;
-  pthread_attr_t attr;
-  int status;
-
-  /* Start the sending thread at the default priority */
-
-  printf("timedmqueue_test: Starting sender\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("timedmqueue_test: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  status = pthread_attr_setstacksize(&attr, STACKSIZE);
-  if (status != 0)
-    {
-      printf("timedmqueue_test: pthread_attr_setstacksize failed, status=%d\n", status);
-    }
-
-  status = pthread_create(&sender, &attr, sender_thread, NULL);
-  if (status != 0)
-    {
-      printf("timedmqueue_test: pthread_create failed, status=%d\n", status);
-    }
-
-  /* Wait for the sending thread to complete */
-
-  printf("timedmqueue_test: Waiting for sender to complete\n");
-  pthread_join(sender, &result);
-  if (result != (void*)0)
-    {
-      printf("timedmqueue_test: ERROR sender thread exited with %d errors\n", (int)result);
-    }
-
-  /* Start the receiving thread at the default priority */
-
-  printf("timedmqueue_test: Starting receiver\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("timedmqueue_test: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  status = pthread_attr_setstacksize(&attr, STACKSIZE);
-  if (status != 0)
-    {
-      printf("timedmqueue_test: pthread_attr_setstacksize failed, status=%d\n", status);
-    }
-
-  status = pthread_create(&receiver, &attr, receiver_thread, NULL);
-  if (status != 0)
-    {
-      printf("timedmqueue_test: pthread_create failed, status=%d\n", status);
-    }
-
-  /* Wait for the receiving thread to complete */
-
-  printf("timedmqueue_test: Waiting for receiver to complete\n");
-  pthread_join(receiver, &result);
-  if (result != (void*)0)
-    {
-      printf("timedmqueue_test: ERROR receiver thread exited with %d errors\n", (int)result);
-    }
-
-  printf("timedmqueue_test: Test complete\n");
-}
-
-
diff --git a/apps/examples/ostest/timedwait.c b/apps/examples/ostest/timedwait.c
deleted file mode 100644
index 7cf875fb6..000000000
--- a/apps/examples/ostest/timedwait.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/***********************************************************************
- * examples/ostest/timedwait.c
- *
- *   Copyright (C) 2007, 2008, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ***********************************************************************/
-
-/**************************************************************************
- * Included Files
- **************************************************************************/
-
-#include <stdio.h>
-#include <time.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "ostest.h"
-
-/**************************************************************************
- * Private Definitions
- **************************************************************************/
-
-/**************************************************************************
- * Private Data
- **************************************************************************/
-
-static pthread_mutex_t mutex;
-static pthread_cond_t  cond;
-
-/**************************************************************************
- * Private Functions
- **************************************************************************/
-
-static void *thread_waiter(void *parameter)
-{
-  struct timespec ts;
-  int status;
-
-  /* Take the mutex */
-
-  printf("thread_waiter: Taking mutex\n");
-  status = pthread_mutex_lock(&mutex);
-  if (status != 0)
-    {
-      printf("thread_waiter: ERROR pthread_mutex_lock failed, status=%d\n", status);
-    }
-
-  printf("thread_waiter: Starting 5 second wait for condition\n");
-
-  status = clock_gettime(CLOCK_REALTIME, &ts);
-  if (status != 0)
-    {
-      printf("thread_waiter: ERROR clock_gettime failed\n");
-    }
-  ts.tv_sec += 5;
-
-  /* The wait -- no-one is ever going to awaken us */
-
-  status = pthread_cond_timedwait(&cond, &mutex, &ts);
-  if (status != 0)
-    {
-      if (status == ETIMEDOUT)
-        {
-          printf("thread_waiter: pthread_cond_timedwait timed out\n");
-        }
-      else
-        {
-          printf("thread_waiter: ERROR pthread_cond_timedwait failed, status=%d\n", status);
-        }
-    }
-  else
-    {
-      printf("thread_waiter: ERROR pthread_cond_timedwait returned without timeout, status=%d\n", status);
-    }
-
-  /* Release the mutex */
-
-  printf("thread_waiter: Releasing mutex\n");
-  status = pthread_mutex_unlock(&mutex);
-  if (status != 0)
-    {
-      printf("thread_waiter: ERROR pthread_mutex_unlock failed, status=%d\n", status);
-    }
-
-  printf("thread_waiter: Exit with status 0x12345678\n");
-  pthread_exit((pthread_addr_t)0x12345678);
-  return NULL;
-}
-
-/**************************************************************************
- * Public Definitions
- **************************************************************************/
-
-void timedwait_test(void)
-{
-  pthread_t waiter;
-  pthread_attr_t attr;
-  struct sched_param sparam;
-  void *result;
-  int prio_max;
-  int status;
-
-  /* Initialize the mutex */
-
-  printf("thread_waiter: Initializing mutex\n");
-  status = pthread_mutex_init(&mutex, NULL);
-  if (status != 0)
-    {
-      printf("timedwait_test: ERROR pthread_mutex_init failed, status=%d\n", status);
-    }
-
-  /* Initialize the condition variable */
-
-  printf("timedwait_test: Initializing cond\n");
-  status = pthread_cond_init(&cond, NULL);
-  if (status != 0)
-    {
-      printf("timedwait_test: ERROR pthread_condinit failed, status=%d\n", status);
-    }
-
-  /* Start the waiter thread at higher priority */
-
-  printf("timedwait_test: Starting waiter\n");
-  status = pthread_attr_init(&attr);
-  if (status != 0)
-    {
-      printf("timedwait_test: pthread_attr_init failed, status=%d\n", status);
-    }
-
-  prio_max = sched_get_priority_max(SCHED_FIFO);
-  status = sched_getparam (getpid(), &sparam);
-  if (status != 0)
-    {
-      printf("timedwait_test: sched_getparam failed\n");
-      sparam.sched_priority = PTHREAD_DEFAULT_PRIORITY;
-    }
-
-  sparam.sched_priority = (prio_max + sparam.sched_priority) / 2;
-  status = pthread_attr_setschedparam(&attr,&sparam);
-  if (status != OK)
-    {
-      printf("timedwait_test: pthread_attr_setschedparam failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("timedwait_test: Set thread 2 priority to %d\n", sparam.sched_priority);
-    }
-
-  status = pthread_create(&waiter, &attr, thread_waiter, NULL);
-  if (status != 0)
-    {
-      printf("timedwait_test: pthread_create failed, status=%d\n", status);
-    }
-
-  printf("timedwait_test: Joining\n");
-  FFLUSH();
-  status = pthread_join(waiter, &result);
-  if (status != 0)
-    {
-      printf("timedwait_test: ERROR pthread_join failed, status=%d\n", status);
-    }
-  else
-    {
-      printf("timedwait_test: waiter exited with result=%p\n", result);
-    }
-}
diff --git a/apps/examples/ostest/vfork.c b/apps/examples/ostest/vfork.c
deleted file mode 100644
index 4e1b8c892..000000000
--- a/apps/examples/ostest/vfork.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/****************************************************************************
- * examples/ostest/vfork.c
- *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "ostest.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-#if defined(CONFIG_ARCH_HAVE_VFORK) && !defined(CONFIG_DISABLE_SIGNALS)
-static volatile bool g_vforkchild;
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-int vfork_test(void)
-{
-#if defined(CONFIG_ARCH_HAVE_VFORK) && !defined(CONFIG_DISABLE_SIGNALS)
-  pid_t pid;
-
-  g_vforkchild = false;
-  pid = vfork();
-  if (pid == 0)
-    {
-      /* There is not very much that the child is permitted to do.  Perhaps
-       * it can just set g_vforkchild.
-       */
-
-      g_vforkchild = true;
-      exit(0);
-    }
-  else if (pid < 0)
-    {
-      printf("vfork_test: vfork() failed: %d\n", errno);
-      return -1;
-    }
-  else
-    {
-      sleep(1);
-      if (g_vforkchild)
-        {
-          printf("vfork_test: Child %d ran successfully\n", pid);
-        }
-      else
-        {
-          printf("vfork_test: ERROR Child %d did not run\n", pid);
-          return -1;
-        }
-    }
-#endif
-
-  return 0;
-}
diff --git a/apps/examples/ostest/waitpid.c b/apps/examples/ostest/waitpid.c
deleted file mode 100644
index d45410265..000000000
--- a/apps/examples/ostest/waitpid.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/****************************************************************************
- * examples/ostest/waitpid.c
- *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/wait.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <signal.h>
-#include <errno.h>
-
-#include "ostest.h"
-
-#ifdef CONFIG_SCHED_WAITPID
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#define RETURN_STATUS 14
-#define NCHILDREN     3
-#define PRIORITY      100
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static int g_waitpids[NCHILDREN];
-
-/****************************************************************************
- * Priviate Functions
- ****************************************************************************/
-
-static int waitpid_main(int argc, char *argv[])
-{
-  pid_t me = getpid();
-
-  printf("waitpid_main: PID %d Started\n", me);
-  sleep(3);
-  printf("waitpid_main: PID %d exitting with result=%d\n", me, RETURN_STATUS);
-  return RETURN_STATUS;
-}
-
-static void waitpid_start_children(void)
-{
-  int ret;
-  int i;
-
-  for (i = 0; i < NCHILDREN; i++)
-    {
-      ret = TASK_CREATE("waitpid", PRIORITY, STACKSIZE, waitpid_main, NULL);
-      if (ret < 0)
-        {
-          printf("waitpid_start_child: ERROR Failed to start user_main\n");
-        }
-      else
-        {
-          printf("waitpid_start_child: Started waitpid_main at PID=%d\n", ret);
-        }
-
-      g_waitpids[i] = ret;
-    }
-}
-
-static void waitpid_last(void)
-{
-  int stat_loc;
-  int ret;
-
-  printf("waitpid_last: Waiting for PID=%d with waitpid()\n",
-         g_waitpids[NCHILDREN-1]);
-
-  ret = (int)waitpid(g_waitpids[NCHILDREN-1], &stat_loc, 0);
-  if (ret < 0)
-    {
-      int errcode = errno;
-      printf("waitpid_last: ERROR: PID %d waitpid failed: %d\n",
-             g_waitpids[NCHILDREN-1], errcode);
-    }
-  else if (WEXITSTATUS(stat_loc) != RETURN_STATUS)
-    {
-      printf("waitpid_last: ERROR: PID %d return status is %d, expected %d\n",
-             g_waitpids[NCHILDREN-1], WEXITSTATUS(stat_loc), RETURN_STATUS);
-    }
-  else
-    {
-      printf("waitpid_last: PID %d waitpid succeeded with stat_loc=%04x\n",
-             g_waitpids[NCHILDREN-1], stat_loc);
-    }
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-int waitpid_test(void)
-{
-#ifdef CONFIG_SCHED_HAVE_PARENT
-  siginfo_t info;
-#endif
-  int stat_loc;
-  int ret;
-
-  /* Start the children and wait for first one to complete */
-
-  printf("\nTest waitpid()\n");
-  waitpid_start_children();
-
-  printf("waitpid_test: Waiting for PID=%d with waitpid()\n", g_waitpids[0]);
-  ret = (int)waitpid(g_waitpids[0], &stat_loc, 0);
-  if (ret < 0)
-    {
-      int errcode = errno;
-      printf("waitpid_test: ERROR: PID %d waitpid failed: %d\n",
-             g_waitpids[0], errcode);
-    }
-  else if (ret != g_waitpids[0])
-    {
-      printf("waitpid_test: ERROR: PID %d wait returned PID %d\n",
-             g_waitpids[0], ret);
-    }
-  else if (WEXITSTATUS(stat_loc) != RETURN_STATUS)
-    {
-      printf("waitpid_test: ERROR: PID %d return status is %d, expected %d\n",
-             g_waitpids[0], WEXITSTATUS(stat_loc), RETURN_STATUS);
-    }
-  else
-    {
-      printf("waitpid_test: PID %d waitpid succeeded with stat_loc=%04x\n",
-             g_waitpids[0], stat_loc);
-    }
-
-  /* Wait a big to make sure that the other threads complete */
-
-  waitpid_last();
-  sleep(1);
-
-#ifdef CONFIG_SCHED_HAVE_PARENT
-  /* Start the children and wait for first one to complete */
-
-  printf("\nTest waitid(P_PID)\n");
-  waitpid_start_children();
-
-  printf("waitpid_test: Waiting for PID=%d with waitid()\n", g_waitpids[0]);
-  ret = waitid(P_PID, (id_t)g_waitpids[0], &info, WEXITED);
-  if (ret < 0)
-    {
-      int errcode = errno;
-      printf("waitpid_test: ERROR: PID %d waitid failed: %d\n",
-             g_waitpids[0], errcode);
-    }
-  else if (info.si_pid != g_waitpids[0])
-    {
-      printf("waitpid_test: ERROR: PID %d waitid returned PID %d\n",
-             g_waitpids[0], info.si_pid);
-    }
-  else if (info.si_status != RETURN_STATUS)
-    {
-      printf("waitpid_test: ERROR: PID %d return status is %d, expected %d\n",
-             info.si_pid, info.si_status, RETURN_STATUS);
-    }
-  else
-    {
-      printf("waitpid_test: waitid PID %d succeeded with si_status=%d\n",
-             info.si_pid, info.si_status);
-    }
-
-  /* Wait a big to make sure that the other threads complete */
-
-  waitpid_last();
-  sleep(1);
-
-  /* Start the children and wait for any one to complete */
-
-  printf("\nTest waitid(P_ALL)\n");
-  waitpid_start_children();
-
-  printf("waitpid_test: Waiting for any child with waitid()\n");
-  ret = waitid(P_ALL, 0, &info, WEXITED);
-  if (ret < 0)
-    {
-      int errcode = errno;
-      printf("waitpid_test: ERROR: waitid failed: %d\n", errcode);
-    }
-  else if (info.si_status != RETURN_STATUS)
-    {
-      printf("waitpid_test: ERROR: PID %d return status is %d, expected %d\n",
-             info.si_pid, info.si_status, RETURN_STATUS);
-    }
-  else
-    {
-      printf("waitpid_test: PID %d waitid succeeded with si_status=%d\n",
-             info.si_pid, info.si_status);
-    }
-
-  /* Wait a big to make sure that the other threads complete */
-
-  waitpid_last();
-  sleep(1);
-
-  /* Start the children and wait for first one to complete */
-
-  printf("\nTest wait()\n");
-  waitpid_start_children();
-
-  printf("waitpid_test: Waiting for any child with wait()\n");
-  ret = (int)wait(&stat_loc);
-  if (ret < 0)
-    {
-      int errcode = errno;
-      printf("waitpid_test: ERROR: wait failed: %d\n", errcode);
-    }
-  else if (WEXITSTATUS(stat_loc) != RETURN_STATUS)
-    {
-      printf("waitpid_test: ERROR: PID %d return status is %d, expected %d\n",
-             ret, WEXITSTATUS(stat_loc), RETURN_STATUS);
-    }
-  else
-    {
-      printf("waitpid_test: PID %d wait succeeded with stat_loc=%04x\n",
-             ret, stat_loc);
-    }
-
-  /* Wait a big to make sure that the other threads complete */
-
-  waitpid_last();
-  sleep(1);
-#endif
-
-  return 0;
-}
-
-#endif /* CONFIG_SCHED_WAITPID */
diff --git a/apps/examples/pipe/Kconfig b/apps/examples/pipe/Kconfig
deleted file mode 100644
index 26bc92fcc..000000000
--- a/apps/examples/pipe/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_PIPE
-	bool "Pipe example"
-	default n
-	---help---
-		Enable the pipe example
-
-if EXAMPLES_PIPE
-endif
diff --git a/apps/examples/pipe/Makefile b/apps/examples/pipe/Makefile
deleted file mode 100644
index bed319085..000000000
--- a/apps/examples/pipe/Makefile
+++ /dev/null
@@ -1,96 +0,0 @@
-############################################################################
-# apps/examples/pipe/Makefile
-#
-#   Copyright (C) 2008, 2010-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# Pipe Example
-
-ASRCS		=
-CSRCS		= pipe_main.c transfer_test.c interlock_test.c redirect_test.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-context:
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/pipe/interlock_test.c b/apps/examples/pipe/interlock_test.c
deleted file mode 100644
index 20d4113eb..000000000
--- a/apps/examples/pipe/interlock_test.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/****************************************************************************
- * examples/pipe/interlock_test.c
- *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/stat.h>
-
-#include <sys/types.h>
-
-#include <stdio.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "pipe.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: null_writer
- ****************************************************************************/
-
-static void *null_writer(pthread_addr_t pvarg)
-{
-  int fd;
-
-  /* Wait a bit */
-
-  printf("null_writer: started -- sleeping\n");
-  sleep(5);
-
-  /* Then open the FIFO for write access */
-
-  printf("null_writer: Opening FIFO for write access\n");
-  fd = open(FIFO_PATH2, O_WRONLY);
-  if (fd < 0)
-    {
-      fprintf(stderr, "null_writer: Failed to open FIFO %s for writing, errno=%d\n",
-              FIFO_PATH2, errno);
-      return (void*)1;
-    }
-
-  /* Wait a bit more */
-
-  printf("null_writer: Opened %s for writing -- sleeping\n", FIFO_PATH2);
-  sleep(5);
-
-  /* Then close the FIFO */
-
-  printf("null_writer: Closing %s\n", FIFO_PATH2);
-  if (close(fd) != 0)
-    {
-      fprintf(stderr, "null_writer: close failed: %d\n", errno);
-    }
-  sleep(5);
-  
-  printf("null_writer: Returning success\n");
-  return (void*)0;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: interlock_test
- ****************************************************************************/
-
-int interlock_test(void)
-{
-  pthread_t writerid;
-  void *value;
-  char data[16];
-  ssize_t nbytes;
-  int fd;
-  int ret;
-
-  /* Create a FIFO */
-
-  ret = mkfifo(FIFO_PATH2, 0666);
-  if (ret < 0)
-    {
-      fprintf(stderr, "interlock_test: mkfifo failed with errno=%d\n", errno);
-      return 1;
-    }
-
-  /* Start the null_writer_thread */
-
-  printf("interlock_test: Starting null_writer thread\n");
-  ret = pthread_create(&writerid, NULL, null_writer, (pthread_addr_t)NULL);
-  if (ret != 0)
-    {
-      fprintf(stderr, "interlock_test: Failed to create null_writer thread, error=%d\n", ret);
-      ret = 2;
-      goto errout_with_fifo;
-    }
- 
-  /* Open one end of the FIFO for reading.  This open call should block until the
-   * null_writer thread opens the other end of the FIFO for writing.
-   */
-
-  printf("interlock_test: Opening FIFO for read access\n");
-  fd = open(FIFO_PATH2, O_RDONLY);
-  if (fd < 0)
-    {
-      fprintf(stderr, "interlock_test: Failed to open FIFO %s for reading, errno=%d\n",
-              FIFO_PATH2, errno);
-      ret = 3;
-      goto errout_with_thread;
-    }
-
-  /* Attempt to read one byte from the FIFO.  This should return end-of-file because
-   * the null_writer closes the FIFO without writing anything.
-   */
-
-  printf("interlock_test: Reading from %s\n", FIFO_PATH2);
-  nbytes = read(fd, data, 16);
-  if (nbytes < 0 )
-    {
-      fprintf(stderr, "interlock_test: read failed, errno=%d\n", errno);
-      ret = 4;
-      goto errout_with_file;
-    }
-  else if (ret != 0)
-    {
-      fprintf(stderr, "interlock_test: Read %d bytes of data -- aborting: %d\n", nbytes);
-      ret = 5;
-      goto errout_with_file;
-    }
-
-  /* Close the file */
-
-  printf("interlock_test: Closing %s\n", FIFO_PATH2);
-  if (close(fd) != 0)
-    {
-      fprintf(stderr, "interlock_test: close failed: %d\n", errno);
-    }
-
-  /* Wait for null_writer thread to complete */
-
-  printf("interlock_test: Waiting for null_writer thread\n");
-  ret = pthread_join(writerid, &value);
-  if (ret != 0)
-    {
-      fprintf(stderr, "interlock_test: pthread_join failed, error=%d\n", ret);
-      ret = 6;
-      goto errout_with_fifo;
-    }
-  else
-    {
-      printf("interlock_test: writer returned %d\n", (int)value);
-      if (value != (void*)0)
-        {
-          ret = 7;
-          goto errout_with_fifo;
-        }
-    }
-
-  /* unlink(FIFO_PATH2); */
-  printf("interlock_test: Returning success\n");
-  return 0;
-
-errout_with_file:
-  if (close(fd) != 0)
-    {
-      fprintf(stderr, "interlock_test: close failed: %d\n", errno);
-    }
-errout_with_thread:
-  pthread_detach(writerid);
-  pthread_cancel(writerid);
-errout_with_fifo:
-  /* unlink(FIFO_PATH2); */
-  printf("interlock_test: Returning %d\n", ret);
-  return ret;
-}
diff --git a/apps/examples/pipe/pipe.h b/apps/examples/pipe/pipe.h
deleted file mode 100644
index 38143e492..000000000
--- a/apps/examples/pipe/pipe.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/****************************************************************************
- * examples/pipe/pipe.h
- *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __EXAMPLES_PIPE_PIPE_H
-#define __EXAMPLES_PIPE_PIPE_H
-
-/****************************************************************************
- * Compilation Switches
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#define FIFO_PATH1 "/tmp/testfifo-1"
-#define FIFO_PATH2 "/tmp/testfifo-2"
-
-#ifndef CONFIG_EXAMPLES_PIPE_STACKSIZE
-#  define CONFIG_EXAMPLES_PIPE_STACKSIZE 1024
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-extern int transfer_test(int fdin, int fdout);
-extern int interlock_test(void);
-extern int redirection_test(void);
-
-#endif /* __EXAMPLES_PIPE_PIPE_H */
diff --git a/apps/examples/pipe/pipe_main.c b/apps/examples/pipe/pipe_main.c
deleted file mode 100644
index 63a4f283f..000000000
--- a/apps/examples/pipe/pipe_main.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/****************************************************************************
- * examples/pipe/pipe_main.c
- *
- *   Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/stat.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <sched.h>
-#include <fcntl.h>
-#include <errno.h>
-
-#include "pipe.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: pipe_main
- ****************************************************************************/
-
-int pipe_main(int argc, char *argv[])
-{
-  int filedes[2];
-  int ret;
-
-  /* Test FIFO logic */
-
-  printf("\npipe_main: Performing FIFO test\n");
-  ret = mkfifo(FIFO_PATH1, 0666);
-  if (ret < 0)
-    {
-      fprintf(stderr, "pipe_main: mkfifo failed with errno=%d\n", errno);
-      return 1;
-    }
-
-  /* Open one end of the FIFO for reading and the other end for writing.  NOTE:
-   * the following might not work on most FIFO implementations because the attempt
-   * to open just one end of the FIFO for writing might block.  The NuttX FIFOs block
-   * only on open for read-only (see interlock_test()).
-   */
-
-  filedes[1] = open(FIFO_PATH1, O_WRONLY);
-  if (filedes[1] < 0)
-    {
-      fprintf(stderr, "pipe_main: Failed to open FIFO %s for writing, errno=%d\n",
-              FIFO_PATH1, errno);
-      return 2;
-    }
-
-  filedes[0] = open(FIFO_PATH1, O_RDONLY);
-  if (filedes[0] < 0)
-    {
-      fprintf(stderr, "pipe_main: Failed to open FIFO %s for reading, errno=%d\n",
-              FIFO_PATH1, errno);
-      if (close(filedes[1]) != 0)
-        {
-          fprintf(stderr, "pipe_main: close failed: %d\n", errno);
-        }
-      return 3;
-    }
-
-  /* Then perform the test using those file descriptors */
-
-  ret = transfer_test(filedes[0], filedes[1]);
-  if (close(filedes[0]) != 0)
-    {
-      fprintf(stderr, "pipe_main: close failed: %d\n", errno);
-    }
-  if (close(filedes[1]) != 0)
-    {
-      fprintf(stderr, "pipe_main: close failed: %d\n", errno);
-    }
-  /* unlink(FIFO_PATH1); fails */
-
-  if (ret != 0)
-    {
-      fprintf(stderr, "pipe_main: FIFO test FAILED (%d)\n", ret);
-      return 4;
-    }
-  printf("pipe_main: FIFO test PASSED\n");
-
-  /* Test PIPE logic */
-
-  printf("\npipe_main: Performing pipe test\n");
-  ret = pipe(filedes);
-  if (ret < 0)
-    {
-      fprintf(stderr, "pipe_main: pipe failed with errno=%d\n", errno);
-      return 5;
-    }
-
-  /* Then perform the test using those file descriptors */
-
-  ret = transfer_test(filedes[0], filedes[1]);
-  if (close(filedes[0]) != 0)
-    {
-      fprintf(stderr, "pipe_main: close failed: %d\n", errno);
-    }
-  if (close(filedes[1]) != 0)
-    {
-      fprintf(stderr, "pipe_main: close failed: %d\n", errno);
-    }
-
-  if (ret != 0)
-    {
-      fprintf(stderr, "pipe_main: PIPE test FAILED (%d)\n", ret);
-      return 6;
-    }
-  printf("pipe_main: PIPE test PASSED\n");
-
-  /* Perform the FIFO interlock test */
-
-  printf("\npipe_main: Performing pipe interlock test\n");
-  ret = interlock_test();
-  if (ret != 0)
-    {
-      fprintf(stderr, "pipe_main: FIFO interlock test FAILED (%d)\n", ret);
-      return 7;
-    }
-  printf("pipe_main: PIPE interlock test PASSED\n");
-
-  /* Perform the pipe redirection test */
-
-  printf("\npipe_main: Performing redirection test\n");
-  ret = redirection_test();
-  if (ret != 0)
-    {
-      fprintf(stderr, "pipe_main: FIFO redirection test FAILED (%d)\n", ret);
-      return 7;
-    }
-  printf("pipe_main: PIPE redirection test PASSED\n");
-
-  fflush(stdout);
-  return 0;
-}
diff --git a/apps/examples/pipe/redirect_test.c b/apps/examples/pipe/redirect_test.c
deleted file mode 100644
index 26fe9bcaa..000000000
--- a/apps/examples/pipe/redirect_test.c
+++ /dev/null
@@ -1,326 +0,0 @@
-/****************************************************************************
- * examples/pipe/redirect_test.c
- *
- *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sched.h>
-#include <semaphore.h>
-#include <errno.h>
-
-#include "pipe.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#define READ_SIZE 37
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static sem_t g_rddone;
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: redirect_reader
- ****************************************************************************/
-
-static int redirect_reader(int argc, char *argv[])
-{
-  char buffer[READ_SIZE];
-  int fdin;
-  int fdout;
-  int ret;
-  int nbytes = 0;
- 
-  printf("redirect_reader: started with fdin=%s\n", argv[1]);
-
-  /* Convert the fdin to binary */
-
-  fdin  = atoi(argv[1]);
-  fdout = atoi(argv[2]);
-
-  /* Close fdout -- we don't need it */
-
-  ret = close(fdout);
-  if (ret != 0)
-    {
-       fprintf(stderr, "redirect_reader: failed to close fdout=%d\n", fdout);
-       return 1;
-    }
-
-  /* Re-direct the fdin to stdin */
-
-  ret = dup2(fdin, 0);
-  if (ret != 0)
-    {
-        fprintf(stderr, "redirect_reader: dup2 failed: %d\n", errno);
-        close(fdin);
-        return 2;
-    }
-
-  /* Close the original file descriptor */
-
-  ret = close(fdin);
-  if (ret != 0)
-    {
-       fprintf(stderr, "redirect_reader: failed to close fdin=%d\n", fdin);
-       return 3;
-    }
-
-  /* Then read from stdin until we hit the end of file */
-
-  fflush(stdout);
-  for (;;)
-    {
-      /* Read from stdin */
-
-      ret = read(0, buffer, READ_SIZE);
-      if (ret < 0 )
-        {
-           fprintf(stderr, "redirect_reader: read failed, errno=%d\n", errno);
-           return 4;
-        }
-      else if (ret == 0)
-        {
-          break;
-        }
-      nbytes += ret;
-
-      /* Echo to stdout */
- 
-      ret = write(1, buffer, ret);
-      if (ret < 0)
-        {
-           fprintf(stderr, "redirect_reader: read failed, errno=%d\n", errno);
-           return 5;
-        }
-    }
-
-  printf("redirect_reader: %d bytes read\n", nbytes);
-  ret = close(0);
-  if (ret != 0)
-    {
-       fprintf(stderr, "redirect_reader: failed to close fd=0\n");
-       return 6;
-    }
-
-  sem_post(&g_rddone);
-  printf("redirect_reader: Returning success\n");
-  return 0;
-}
-
-/****************************************************************************
- * Name: redirect_writer
- ****************************************************************************/
-
-static int redirect_writer(int argc, char *argv[])
-{
-  int fdin;
-  int fdout;
-  int nbytes = 0;
-  int ret;
- 
-  fprintf(stderr, "redirect_writer: started with fdout=%s\n", argv[2]);
- 
-  /* Convert the fdout to binary */
-
-  fdin  = atoi(argv[1]);
-  fdout = atoi(argv[2]);
-
-  /* Close fdin -- we don't need it */
-
-  ret = close(fdin);
-  if (ret != 0)
-    {
-       fprintf(stderr, "redirect_reader: failed to close fdin=%d\n", fdin);
-       return 1;
-    }
-
-  /* Re-direct the fdout to stdout */
-
-  ret = dup2(fdout, 1);
-  if (ret != 0)
-    {
-        fprintf(stderr, "redirect_writer: dup2 failed: %d\n", errno);
-        return 2;
-    }
-
-  /* Close the original file descriptor */
-
-  ret = close(fdout);
-  if (ret != 0)
-    {
-       fprintf(stderr, "redirect_reader: failed to close fdout=%d\n", fdout);
-       return 3;
-    }
-
-  /* Then write a bunch of stuff to stdout */
-
-  fflush(stderr);
-  nbytes += printf("\nFour score and seven years ago our fathers brought forth on this continent a new nation,\n");
-  nbytes += printf("conceived in Liberty, and dedicated to the proposition that all men are created equal.\n");
-  nbytes += printf("\nNow we are engaged in a great civil war, testing whether that nation, or any nation, so\n");
-  nbytes += printf("conceived and so dedicated, can long endure. We are met on a great battle-field of that war.\n");
-  nbytes += printf("We have come to dedicate a portion of that field, as a final resting place for those who here\n");
-  nbytes += printf("gave their lives that that nation might live. It is altogether fitting and proper that we\n");
-  nbytes += printf("should do this.\n");
-  nbytes += printf("\nBut, in a larger sense, we can not dedicate - we can not consecrate - we can not hallow - this ground.\n");
-  nbytes += printf("The brave men, living and dead, who struggled here, have consecrated it, far above our poor power\n");
-  nbytes += printf("to add or detract. The world will little note, nor long remember what we say here, but it can\n");
-  nbytes += printf("never forget what they did here. It is for us the living, rather, to be dedicated here to the\n");
-  nbytes += printf("unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to\n");
-  nbytes += printf("be here dedicated to the great task remaining before us - that from these honored dead we take\n");
-  nbytes += printf("increased devotion to that cause for which they gave the last full measure of devotion - that we\n");
-  nbytes += printf("here highly resolve that these dead shall not have died in vain - that this nation, under God,\n");
-  nbytes += printf("shall have a new birth of freedom - and that government of the people, by the people, for the\n");
-  nbytes += printf("people, shall not perish from the earth.\n\n");
-  fflush(stdout);
-
-  fprintf(stderr, "redirect_writer: %d bytes written\n", nbytes);
-
-  ret = close(1);
-  if (ret != 0)
-    {
-       fprintf(stderr, "redirect_writer: failed to close fd=1\n");
-       return 4;
-    }
-
-  fprintf(stderr, "redirect_writer: Returning success\n");
-  return 0;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: redirection_test
- ****************************************************************************/
-
-int redirection_test(void)
-{
-  const char *argv[3];
-  char buffer1[8];
-  char buffer2[8];
-  int readerid;
-  int writerid;
-  int filedes[2];
-  int ret;
-
-  sem_init(&g_rddone, 0, 0);
-
-    /* Create the pipe */
-
-  ret = pipe(filedes);
-  if (ret < 0)
-    {
-      fprintf(stderr, "redirection_test: pipe failed with errno=%d\n", errno);
-      return 5;
-    }
- 
-  sprintf(buffer1, "%d", filedes[0]);
-  argv[0] = buffer1;
-  sprintf(buffer2, "%d", filedes[1]);
-  argv[1] = buffer2;
-  argv[2] = NULL;
-
-  /* Start redirect_reader thread */
-
-  printf("redirection_test: Starting redirect_reader task with fd=%d\n", filedes[0]);
-  readerid = task_create("redirect_reader", 50, CONFIG_EXAMPLES_PIPE_STACKSIZE, redirect_reader, argv);
-  if (readerid < 0)
-    {
-      fprintf(stderr, "redirection_test: Failed to create redirect_writer task: %d\n", errno);
-      return 1;
-    }
-
-  /* Start redirect_writer task */
-
-  printf("redirection_test: Starting redirect_writer task with fd=%d\n", filedes[1]);
-  writerid = task_create("redirect_writer", 50, CONFIG_EXAMPLES_PIPE_STACKSIZE, redirect_writer, argv);
-  if (writerid < 0)
-    {
-      fprintf(stderr, "redirection_test: Failed to create redirect_writer task: %d\n", errno);
-      ret = task_delete(readerid);
-      if (ret != 0)
-        {
-          fprintf(stderr, "redirection_test: Failed to delete redirect_reader task %d\n", errno);
-        }
-      return 2;
-    }
-
-  /* We should be able to close the pipe file descriptors now. */
-
-  if (close(filedes[0]) != 0)
-    {
-      fprintf(stderr, "pipe_main: close failed: %d\n", errno);
-    }
-  if (close(filedes[1]) != 0)
-    {
-      fprintf(stderr, "pipe_main: close failed: %d\n", errno);
-    }
-
-  if (ret != 0)
-    {
-      fprintf(stderr, "pipe_main: PIPE test FAILED (%d)\n", ret);
-      return 6;
-    }
-
-  /* Wait for redirect_writer thread to complete */
-
-  printf("redirection_test: Waiting...\n");
-  fflush(stdout);
-  sem_wait(&g_rddone);
-
-  printf("redirection_test: returning %d\n", ret);
-  return ret;
-}
-
diff --git a/apps/examples/pipe/transfer_test.c b/apps/examples/pipe/transfer_test.c
deleted file mode 100644
index f7c612881..000000000
--- a/apps/examples/pipe/transfer_test.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/****************************************************************************
- * examples/pipe/transfer_test.c
- *
- *   Copyright (C) 2008-2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdio.h>
-#include <unistd.h>
-#include <errno.h>
-
-#include "pipe.h"
-
-/****************************************************************************
- * Pre-proecessor Definitions
- ****************************************************************************/
-
-#define MAX_BYTE      13
-
-#define WRITE_SIZE    MAX_BYTE
-#define NWRITES       1400
-#define NWRITE_BYTES (NWRITES * WRITE_SIZE)
-
-#define READ_SIZE    (2*MAX_BYTE)
-#define NREADS       (NWRITES / 2)
-#define NREAD_BYTES   NWRITE_BYTES
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: transfer_reader
- ****************************************************************************/
-
-static void *transfer_reader(pthread_addr_t pvarg)
-{
-  char buffer[READ_SIZE];
-  int fd = (int)pvarg;
-  int ret;
-  int nbytes;
-  int value;
-  int ndx;
-
-  printf("transfer_reader: started\n");
-  for (nbytes = 0, value = 0; nbytes < NREAD_BYTES;)
-    {
-      ret = read(fd, buffer, READ_SIZE);
-      if (ret < 0 )
-        {
-           fprintf(stderr, "transfer_reader: read failed, errno=%d\n", errno);
-           return (void*)1;
-        }
-      else if (ret == 0)
-        {
-          if (nbytes < NREAD_BYTES)
-            {
-              fprintf(stderr, "transfer_reader: Too few bytes read -- aborting: %d\n", nbytes);
-              return (void*)2;
-            }
-          break;
-        }
-      for (ndx = 0; ndx < ret; ndx++)
-        {
-          if (value >= WRITE_SIZE)
-            {
-              value = 0;
-            }
-          if (buffer[ndx] != value)
-            {
-              fprintf(stderr, "transfer_reader: Byte %d, expected %d, found %d\n",
-                      nbytes + ndx, value, buffer[ndx]);
-              return (void*)3;
-            }
-          value++;
-        }
-      nbytes += ret;
-      if (nbytes > NREAD_BYTES)
-        {
-          fprintf(stderr, "transfer_reader: Too many bytes read -- aborting: %d\n", nbytes);
-          return (void*)4;
-        }
-    }
-  printf("transfer_reader: %d bytes read\n", nbytes);
-  return (void*)0;
-}
-
-/****************************************************************************
- * Name: transfer_writer
- ****************************************************************************/
-
-static void *transfer_writer(pthread_addr_t pvarg)
-{
-  char buffer[WRITE_SIZE];
-  int fd = (int)pvarg;
-  int ret;
-  int i;
-
-  printf("transfer_writer: started\n");
-  for (i = 0; i < WRITE_SIZE; i++)
-    {
-      buffer[i] = i;
-    }
-
-  for (i = 0; i < NWRITES; i++)
-    {
-      ret = write(fd, buffer, WRITE_SIZE);
-      if (ret < 0 )
-        {
-           fprintf(stderr, "transfer_writer: write failed, errno=%d\n", errno);
-           return (void*)1;
-        }
-      else if (ret != WRITE_SIZE)
-        {
-           fprintf(stderr, "transfer_writer: Unexpected write size=%d\n", ret);
-           return (void*)2;
-        }
-    }
-  printf("transfer_writer: %d bytes written\n", NWRITE_BYTES);
-  return (void*)0;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: transfer_test
- ****************************************************************************/
-
-int transfer_test(int fdin, int fdout)
-{
-  pthread_t readerid;
-  pthread_t writerid;
-  void *value;
-  int tmp;
-  int ret;
-
-  /* Start transfer_reader thread */
-
-  printf("transfer_test: Starting transfer_reader thread\n");
-  ret = pthread_create(&readerid, NULL, transfer_reader, (pthread_addr_t)fdin);
-  if (ret != 0)
-    {
-      fprintf(stderr, "transfer_test: Failed to create transfer_reader thread, error=%d\n", ret);
-      return 1;
-    }
-
-  /* Start transfer_writer thread */
-
-  printf("transfer_test: Starting transfer_writer thread\n");
-  ret = pthread_create(&writerid, NULL, transfer_writer, (pthread_addr_t)fdout);
-  if (ret != 0)
-    {
-      fprintf(stderr, "transfer_test: Failed to create transfer_writer thread, error=%d\n", ret);
-      pthread_detach(readerid);
-      ret = pthread_cancel(readerid);
-      if (ret != 0)
-        {
-          fprintf(stderr, "transfer_test: Failed to cancel transfer_reader thread, error=%d\n", ret);
-        }
-      return 2;
-    }
-
-  /* Wait for transfer_writer thread to complete */
-
-  printf("transfer_test: Waiting for transfer_writer thread\n");
-  ret = pthread_join(writerid, &value);
-  if (ret != 0)
-    {
-      fprintf(stderr, "transfer_test: pthread_join failed, error=%d\n", ret);
-    }
-  else
-    {
-      ret = (int)value;
-      printf("transfer_test: transfer_writer returned %d\n", ret);
-    }
-
-  /* Wait for transfer_reader thread to complete */
-
-  printf("transfer_test: Waiting for transfer_reader thread\n");
-  tmp = pthread_join(readerid, &value);
-  if (tmp != 0)
-    {
-      fprintf(stderr, "transfer_test: pthread_join failed, error=%d\n", ret);
-    }
-  else
-    {
-      tmp = (int)value;
-      printf("transfer_test: transfer_reader returned %d\n", tmp);
-    }
-
-  if (ret == 0)
-    {
-      ret = tmp;
-    }
-  printf("transfer_test: returning %d\n", ret);
-  return ret;
-}
-
diff --git a/apps/examples/poll/Kconfig b/apps/examples/poll/Kconfig
deleted file mode 100644
index f35a9200b..000000000
--- a/apps/examples/poll/Kconfig
+++ /dev/null
@@ -1,31 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_POLL
-	bool "Poll example"
-	default n
-	depends on !NSH_BUILTIN_APPS
-	---help---
-		Enable the poll example
-
-if EXAMPLES_POLL
-
-config EXAMPLES_POLL_NOMAC
-	bool "Use Canned MAC Address"
-	default n
-
-config EXAMPLES_POLL_IPADDR
-	hex "Target IP address"
-	default 0x0a000002
-
-config EXAMPLES_POLL_DRIPADDR
-	hex "Default Router IP address (Gateway)"
-	default 0x0a000001
-
-config EXAMPLES_POLL_NETMASK
-	hex "Network Mask"
-	default 0xffffff00
-
-endif
diff --git a/apps/examples/poll/Makefile b/apps/examples/poll/Makefile
deleted file mode 100644
index 13173f125..000000000
--- a/apps/examples/poll/Makefile
+++ /dev/null
@@ -1,98 +0,0 @@
-############################################################################
-# apps/examples/poll/Makefile
-#
-#   Copyright (C) 2008, 2010-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# Device Driver poll()/select() Example
-
-ASRCS		=
-CSRCS		= poll_main.c poll_listener.c select_listener.c net_listener.c net_reader.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-context:
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-# Register application
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-	$(call DELFILE, host$(HOSTEXEEXT))
-
--include Make.dep
diff --git a/apps/examples/poll/Makefile.host b/apps/examples/poll/Makefile.host
deleted file mode 100644
index 1e6a72089..000000000
--- a/apps/examples/poll/Makefile.host
+++ /dev/null
@@ -1,54 +0,0 @@
-############################################################################
-# apps/examples/poll/Makefile.host
-#
-#   Copyright (C) 2008, 2009, 2011 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
-# TOPDIR must be defined on the make command line
-
-include $(TOPDIR)/.config
-include $(TOPDIR)/Make.defs
-
-SRC	= host.c
-BIN	= host
-
-DEFINES	= -DTARGETIP=\"$(TARGETIP)\"
-
-all:	$(BIN)
-
-$(BIN): $(SRC)
-	$(HOSTCC) $(HOSTCFLAGS) $(DEFINES) $^ -o $@
-
-clean:
-	@rm -f $(BIN) *~ .*.swp *.o
-	$(call CLEAN)
-
diff --git a/apps/examples/poll/host.c b/apps/examples/poll/host.c
deleted file mode 100644
index 302cceb0f..000000000
--- a/apps/examples/poll/host.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/****************************************************************************
- * examples/poll/host.c
- *
- *   Copyright (C) 2008-2009, 2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <sys/socket.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <pthread.h>
-#include <string.h>
-#include <errno.h>
-
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#define pthread_addr_t void *
-#include "poll_internal.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-#ifndef TARGETIP
-#  error TARGETIP not defined
-#endif
-
-#define IOBUFFER_SIZE 80
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * main
- ****************************************************************************/
-
-int main(int argc, char **argv, char **envp)
-{
-  struct sockaddr_in myaddr;
-  char outbuf[IOBUFFER_SIZE];
-  char inbuf[IOBUFFER_SIZE];
-  int sockfd;
-  int len;
-  int nbytessent;
-  int nbytesrecvd;
-  int i;
-
-  /* Create a new TCP socket */
-
-  sockfd = socket(PF_INET, SOCK_STREAM, 0);
-  if (sockfd < 0)
-    {
-      message("client socket failure %d\n", errno);
-      goto errout_with_outbufs;
-    }
-
-  /* Connect the socket to the server */
-
-  myaddr.sin_family      = AF_INET;
-  myaddr.sin_port        = htons(LISTENER_PORT);
-  myaddr.sin_addr.s_addr = inet_addr(TARGETIP);
-
-  message("client: Connecting to %s...\n", TARGETIP);
-  if (connect( sockfd, (struct sockaddr*)&myaddr, sizeof(struct sockaddr_in)) < 0)
-    {
-      message("client: connect failure: %d\n", errno);
-      goto errout_with_socket;
-    }
-  message("client: Connected\n");
-
-  /* Then send and receive messages */
-
-  for (i = 0; ; i++)
-    {
-      sprintf(outbuf, "Remote message %d", i);
-      len = strlen(outbuf);
-
-      message("client: Sending '%s' (%d bytes)\n", outbuf, len);
-      nbytessent = send(sockfd, outbuf, len, 0);
-      message("client: Sent %d bytes\n", nbytessent);
-
-      if (nbytessent < 0)
-        {
-          message("client: send failed: %d\n", errno);
-          goto errout_with_socket;
-        }
-      else if (nbytessent != len)
-        {
-          message("client: Bad send length: %d Expected: %d\n", nbytessent, len);
-          goto errout_with_socket;
-        }
-
-      message("client: Receiving...\n");
-      nbytesrecvd = recv(sockfd, inbuf, IOBUFFER_SIZE, 0);
-
-      if (nbytesrecvd < 0)
-        {
-          message("client: recv failed: %d\n", errno);
-          goto errout_with_socket;
-        }
-      else if (nbytesrecvd == 0)
-        {
-          message("client: The server broke the connections\n");
-          goto errout_with_socket;
-        }
-
-      inbuf[nbytesrecvd] = '\0';
-      message("client: Received '%s' (%d bytes)\n", inbuf, nbytesrecvd);
-
-      if (nbytesrecvd != len)
-        {
-          message("client: Bad recv length: %d Expected: %d\n", nbytesrecvd, len);
-          goto errout_with_socket;
-        }
-      else if (memcmp(inbuf, outbuf, len) != 0)
-        {
-          message("client: Received outbuf does not match sent outbuf\n");
-          goto errout_with_socket;
-        }
-
-      message("client: Sleeping\n");
-      sleep(8);
-    }
-
-  close(sockfd);
-  return 0;
-
-errout_with_socket:
-  close(sockfd);
-errout_with_outbufs:
-  exit(1);
-}
diff --git a/apps/examples/poll/net_listener.c b/apps/examples/poll/net_listener.c
deleted file mode 100644
index 2be98673c..000000000
--- a/apps/examples/poll/net_listener.c
+++ /dev/null
@@ -1,428 +0,0 @@
-/****************************************************************************
- * examples/poll/net_listener.c
- *
- *   Copyright (C) 2008-2009, 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/stat.h>
-#include <sys/select.h>
-#include <sys/socket.h>
-#include <sys/ioctl.h>
-
-#include <stdint.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <pthread.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <net/if.h>
-#include <apps/netutils/uiplib.h>
-
-#include "poll_internal.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#define IOBUFFER_SIZE 80
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-struct net_listener_s
-{
-  struct sockaddr_in addr;
-  fd_set          master;
-  fd_set          working;
-  char            buffer[IOBUFFER_SIZE];
-  int             listensd;
-  int             mxsd;
-};
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: net_closeclient
- ****************************************************************************/
-
-static bool net_closeclient(struct net_listener_s *nls, int sd)
-{
-  message("net_listener: Closing host side connection sd=%d\n", sd);
-  close(sd);
-  FD_CLR(sd, &nls->master);
-
-  /* If we just closed the max SD, then search downward for the next biggest SD. */
-
-  while (FD_ISSET(nls->mxsd, &nls->master) == false)
-    {
-      nls->mxsd -= 1;
-    }
-  return true;
-}
-
-/****************************************************************************
- * Name: net_incomingdata
- ****************************************************************************/
-
-static inline bool net_incomingdata(struct net_listener_s *nls, int sd)
-{
-  char *ptr;
-  int nbytes;
-  int ret;
-
-  /* Read data from the socket */
-
-#ifdef FIONBIO
-  for (;;)
-#endif
-    {
-      message("net_listener: Read data from sd=%d\n", sd);
-      ret = recv(sd, nls->buffer, IOBUFFER_SIZE, 0);
-      if (ret < 0)
-        {
-          if (errno != EINTR)
-            {
-              message("net_listener: recv failed sd=%d: %d\n", sd, errno);
-              if (errno != EAGAIN)
-                {
-                  net_closeclient(nls, sd);
-                  return false;
-                }
-            }
-        }
-      else if (ret == 0)
-        {
-          message("net_listener: Client connection lost sd=%d\n", sd);
-          net_closeclient(nls, sd);
-          return false;
-        }
-      else
-        {
-          nls->buffer[ret]='\0';
-          message("poll_listener: Read '%s' (%d bytes)\n", nls->buffer, ret);
-
-          /* Echo the data back to the client */
-
-          for (nbytes = ret, ptr = nls->buffer; nbytes > 0; )
-            {
-              ret = send(sd, ptr, nbytes, 0);
-              if (ret < 0)
-                {
-                  if (errno != EINTR)
-                    {
-                       message("net_listener: Send failed sd=%d: \n", sd, errno);
-                       net_closeclient(nls, sd);
-                       return false;
-                    }
-                }
-              else
-                {
-                  nbytes -= ret;
-                  ptr    += ret;
-                }
-            }
-        }
-    }
-  return 0;
-}
-
-/****************************************************************************
- * Name: net_connection
- ****************************************************************************/
-
-static inline bool net_connection(struct net_listener_s *nls)
-{
-  int sd;
-
-  /* Loop until all connections have been processed */
-
-#ifdef FIONBIO
-  for (;;)
-#endif
-    {
-      message("net_listener: Accepting new connection on sd=%d\n", nls->listensd);
-
-      sd = accept(nls->listensd, NULL, NULL);
-      if (sd < 0)
-        {
-          message("net_listener: accept failed: %d\n", errno);
-
-          if (errno != EINTR)
-            {
-              return false;
-            }
-        }
-      else
-        {
-          /* Add the new connection to the master set */
-
-          message("net_listener: Connection accepted for sd=%d\n", sd);
-
-          FD_SET(sd, &nls->master);
-          if (sd > nls->mxsd)
-            {
-               nls->mxsd = sd;
-            }
-          return true;
-        }
-    }
-  return false;
-}
-
-/****************************************************************************
- * Name: net_mksocket
- ****************************************************************************/
-
-static inline bool net_mksocket(struct net_listener_s *nls)
-{
-  int value;
-  int ret;
-
-  /* Create a listening socket */
-
-  message("net_listener: Initializing listener socket\n");
-  nls->listensd = socket(AF_INET, SOCK_STREAM, 0);
-  if (nls->listensd < 0)
-    {
-      message("net_listener: socket failed: %d\n", errno);
-      return false;
-    }
-
-  /* Configure the socket */
-
-  value = 1;
-  ret = setsockopt(nls->listensd, SOL_SOCKET,  SO_REUSEADDR, (char*)&value, sizeof(int));
-  if (ret < 0)
-    {
-      message("net_listener: setsockopt failed: %d\n", errno);
-      close(nls->listensd);
-      return false;
-    }
-
-  /* Set the socket to non-blocking */
-
-#ifdef FIONBIO
-  ret = ioctl(nls->listensd, FIONBIO, (char *)&value);
-  if (ret < 0)
-    {
-      message("net_listener: ioctl failed: %d\n", errno);
-      close(nls->listensd);
-      return false;
-    }
-#endif
-
-  /* Bind the socket */
-
-  memset(&nls->addr, 0, sizeof(struct sockaddr_in));
-  nls->addr.sin_family      = AF_INET;
-  nls->addr.sin_addr.s_addr = htonl(INADDR_ANY);
-  nls->addr.sin_port        = htons(LISTENER_PORT);
-  ret = bind(nls->listensd, (struct sockaddr *)&nls->addr, sizeof(struct sockaddr_in));
-  if (ret < 0)
-    {
-      message("net_listener: bind failed: %d\n", errno);
-      close(nls->listensd);
-      return false;
-    }
-
-  /* Mark the socket as a listener */
-
-  ret = listen(nls->listensd, 32);
-  if (ret < 0)
-    {
-      message("net_listener: bind failed: %d\n", errno);
-      close(nls->listensd);
-      return false;
-    }
-
-  return true;
-}
-
-/****************************************************************************
- * Name: net_configure
- ****************************************************************************/
-
-static void net_configure(void)
-{
-  struct in_addr addr;
-#if defined(CONFIG_EXAMPLES_POLL_NOMAC)
-  uint8_t mac[IFHWADDRLEN];
-#endif
-
-  /* Configure uIP */
-  /* Many embedded network interfaces must have a software assigned MAC */
-
-#ifdef CONFIG_EXAMPLES_POLL_NOMAC
-  mac[0] = 0x00;
-  mac[1] = 0xe0;
-  mac[2] = 0xde;
-  mac[3] = 0xad;
-  mac[4] = 0xbe;
-  mac[5] = 0xef;
-  uip_setmacaddr("eth0", mac);
-#endif
-
-  /* Set up our host address */
-
-  addr.s_addr = HTONL(CONFIG_EXAMPLES_POLL_IPADDR);
-  uip_sethostaddr("eth0", &addr);
-
-  /* Set up the default router address */
-
-  addr.s_addr = HTONL(CONFIG_EXAMPLES_POLL_DRIPADDR);
-  uip_setdraddr("eth0", &addr);
-
-  /* Setup the subnet mask */
-
-  addr.s_addr = HTONL(CONFIG_EXAMPLES_POLL_NETMASK);
-  uip_setnetmask("eth0", &addr);
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: net_listener
- ****************************************************************************/
-
-void *net_listener(pthread_addr_t pvarg)
-{
-  struct net_listener_s nls;
-  struct timeval timeout;
-  int nsds;
-  int ret;
-  int i;
-
-  /* Configure uIP */
-
-  net_configure();
-
-  /* Set up a listening socket */
-
-  memset(&nls, 0, sizeof(struct net_listener_s));
-  if (!net_mksocket(&nls))
-    {
-       return (void*)1;
-    }
-
-  /* Initialize the 'master' file descriptor set */
-
-  FD_ZERO(&nls.master);
-  nls.mxsd = nls.listensd;
-  FD_SET(nls.listensd, &nls.master);
-
-  /* Set up a 3 second timeout */
-
-  timeout.tv_sec  = NET_LISTENER_DELAY;
-  timeout.tv_usec = 0;
-
-  /* Loop waiting for incoming connections or for incoming data
-   * on any of the connect sockets.
-   */
-
-  for (;;)
-    {
-      /* Wait on select */
-
-      message("net_listener: Calling select(), listener sd=%d\n", nls.listensd);
-      memcpy(&nls.working, &nls.master, sizeof(fd_set));
-      ret = select(nls.mxsd + 1, (FAR fd_set*)&nls.working, (FAR fd_set*)NULL, (FAR fd_set*)NULL, &timeout);
-      if (ret < 0)
-        {
-          message("net_listener: select failed: %d\n", errno);
-          break;
-        }
-
-      /* Check for timeout */
-
-      if (ret == 0)
-        {
-          message("net_listener: Timeout\n");
-          continue;
-        }
-
-      /* Find which descriptors caused the wakeup */
-
-      nsds = ret;
-      for (i = 0; i <= nls.mxsd && nsds > 0; i++)
-        {
-          /* Is this descriptor ready? */
-
-          if (FD_ISSET(i, &nls.working))
-            {
-              /* Yes, is it our listener? */
-
-              message("net_listener: Activity on sd=%d\n", i);
-
-              nsds--;
-              if (i == nls.listensd)
-                {
-                  (void)net_connection(&nls);
-                }
-              else
-                {
-                  net_incomingdata(&nls, i);
-                }
-            }
-        }
-    }
-
-  /* Cleanup */
-
-#if 0 /* Don't get here */
-   for (i = 0; i <= nls.mxsd; +i++)
-    {
-      if (FD_ISSET(i, &nls.master))
-        {
-          close(i);
-        }
-    }
-#endif
-  return NULL;  /* Keeps some compilers from complaining */
-}
diff --git a/apps/examples/poll/net_reader.c b/apps/examples/poll/net_reader.c
deleted file mode 100644
index 2f23bab3c..000000000
--- a/apps/examples/poll/net_reader.c
+++ /dev/null
@@ -1,317 +0,0 @@
-/****************************************************************************
- * examples/poll/net_reader.c
- *
- *   Copyright (C) 2008-2009, 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/select.h>
-#include <sys/socket.h>
-
-#include <stdint.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <pthread.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <net/if.h>
-#include <apps/netutils/uiplib.h>
-
-#include "poll_internal.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#define IOBUFFER_SIZE 80
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: net_configure
- ****************************************************************************/
-
-static void net_configure(void)
-{
-  struct in_addr addr;
-#if defined(CONFIG_EXAMPLES_POLL_NOMAC)
-  uint8_t mac[IFHWADDRLEN];
-#endif
-
-  /* Configure uIP */
-  /* Many embedded network interfaces must have a software assigned MAC */
-
-#ifdef CONFIG_EXAMPLES_POLL_NOMAC
-  mac[0] = 0x00;
-  mac[1] = 0xe0;
-  mac[2] = 0xde;
-  mac[3] = 0xad;
-  mac[4] = 0xbe;
-  mac[5] = 0xef;
-  uip_setmacaddr("eth0", mac);
-#endif
-
-  /* Set up our host address */
-
-  addr.s_addr = HTONL(CONFIG_EXAMPLES_POLL_IPADDR);
-  uip_sethostaddr("eth0", &addr);
-
-  /* Set up the default router address */
-
-  addr.s_addr = HTONL(CONFIG_EXAMPLES_POLL_DRIPADDR);
-  uip_setdraddr("eth0", &addr);
-
-  /* Setup the subnet mask */
-
-  addr.s_addr = HTONL(CONFIG_EXAMPLES_POLL_NETMASK);
-  uip_setnetmask("eth0", &addr);
-}
-
-/****************************************************************************
- * Name: net_receive
- ****************************************************************************/
-
-static void net_receive(int sd)
-{
-  struct timeval timeout;
-  char buffer[IOBUFFER_SIZE];
-  char *ptr;
-  fd_set readset;
-  int nbytes;
-  int ret;
-
-  /* Set up the timeout */
-
-  timeout.tv_sec  = NET_LISTENER_DELAY;
-  timeout.tv_usec = 0;
-
-  /* Loop while we have the connection */
-
-  for (;;)
-    {
-      /* Wait for incoming message */
-
-      do
-        {
-          FD_ZERO(&readset);
-          FD_SET(sd, &readset);
-          ret = select(sd + 1, (FAR fd_set*)&readset, (FAR fd_set*)NULL, (FAR fd_set*)NULL, &timeout);
-        }
-      while (ret < 0 && errno == EINTR);
-
-      /* Something has happened */
-
-      if (ret < 0)
-        {
-          message("net_reader: select failed: %d\n", errno);
-          return;
-        }
-      else if (ret == 0)
-        {
-          message("net_reader: Timeout\n");
-        }
-      else
-        {
-          message("net_reader: Read data from sd=%d\n", sd);
-          memset(buffer, '?', IOBUFFER_SIZE); /* Just to make sure we really receive something */
-          ret = recv(sd, buffer, IOBUFFER_SIZE, 0);
-          if (ret < 0)
-            {
-              if (errno != EINTR)
-                {
-                  message("net_reader: recv failed sd=%d: %d\n", sd, errno);
-                  if (errno != EAGAIN)
-                    {
-                       return;
-                    }
-                }
-            }
-          else if (ret == 0)
-            {
-              message("net_reader: Client connection lost sd=%d\n", sd);
-              return;
-            }
-          else
-            {
-              buffer[ret]='\0';
-              message("net_reader: Read '%s' (%d bytes)\n", buffer, ret);
-
-              /* Echo the data back to the client */
-
-              for (nbytes = ret, ptr = buffer; nbytes > 0; )
-                {
-                  ret = send(sd, ptr, nbytes, 0);
-                  if (ret < 0)
-                    {
-                      if (errno != EINTR)
-                        {
-                           message("net_reader: Send failed sd=%d: %d\n", sd, errno);
-                           return;
-                        }
-                    }
-                  else
-                    {
-                      nbytes -= ret;
-                      ptr    += ret;
-                    }
-                }
-            }
-        }
-    }
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: net_reader
- ****************************************************************************/
-
-void *net_reader(pthread_addr_t pvarg)
-{
-  struct sockaddr_in addr;
-#ifdef POLL_HAVE_SOLINGER
-  struct linger ling;
-#endif
-  int listensd;
-  int acceptsd;
-  socklen_t addrlen;
-  int optval;
-
-  /* Configure uIP */
-
-  net_configure();
-
-  /* Create a new TCP socket */
-
-  listensd = socket(PF_INET, SOCK_STREAM, 0);
-  if (listensd < 0)
-    {
-      message("net_reader: socket failure: %d\n", errno);
-      goto errout;
-    }
-
-  /* Set socket to reuse address */
-
-  optval = 1;
-  if (setsockopt(listensd, SOL_SOCKET, SO_REUSEADDR, (void*)&optval, sizeof(int)) < 0)
-    {
-      message("net_reader: setsockopt SO_REUSEADDR failure: %d\n", errno);
-      goto errout_with_listensd;
-    }
-
-  /* Bind the socket to a local address */
-
-  addr.sin_family      = AF_INET;
-  addr.sin_port        = HTONS(LISTENER_PORT);
-  addr.sin_addr.s_addr = INADDR_ANY;
-
-  if (bind(listensd, (struct sockaddr*)&addr, sizeof(struct sockaddr_in)) < 0)
-    {
-      message("net_reader: bind failure: %d\n", errno);
-      goto errout_with_listensd;
-    }
-
-  /* Listen for connections on the bound TCP socket */
-
-  if (listen(listensd, 5) < 0)
-    {
-      message("net_reader: listen failure %d\n", errno);
-      goto errout_with_listensd;
-    }
-
-  /* Connection loop */
-
-  for (;;)
-    {
-      /* Accept only one connection */
-
-      message("net_reader: Accepting new connections on port %d\n", LISTENER_PORT);
-      addrlen = sizeof(struct sockaddr_in);
-      acceptsd = accept(listensd, (struct sockaddr*)&addr, &addrlen);
-      if (acceptsd < 0)
-        {
-          message("net_reader: accept failure: %d\n", errno);
-          continue;
-        }
-      message("net_reader: Connection accepted on sd=%d\n", acceptsd);
-
-      /* Configure to "linger" until all data is sent when the socket is closed */
-
-#ifdef POLL_HAVE_SOLINGER
-      ling.l_onoff  = 1;
-      ling.l_linger = 30;     /* timeout is seconds */
-      if (setsockopt(acceptsd, SOL_SOCKET, SO_LINGER, &ling, sizeof(struct linger)) < 0)
-        {
-        message("net_reader: setsockopt SO_LINGER failure: %d\n", errno);
-        goto errout_with_acceptsd;
-      }
-#endif
-
-      /* Handle incoming messsages on the connection. */
-
-      net_receive(acceptsd);
-
-      message("net_reader: Closing sd=%d\n", acceptsd);
-      close(acceptsd);
-    }
-
-#ifdef POLL_HAVE_SOLINGER
-errout_with_acceptsd:
-  close(acceptsd);
-#endif
-errout_with_listensd:
-  close(listensd);
-errout:
-  return NULL;
-}
diff --git a/apps/examples/poll/poll_internal.h b/apps/examples/poll/poll_internal.h
deleted file mode 100644
index 759d23f1c..000000000
--- a/apps/examples/poll/poll_internal.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/****************************************************************************
- * examples/poll/poll_internal.h
- *
- *   Copyright (C) 2008, 2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __EXAMPLES_PIPE_PIPE_H
-#define __EXAMPLES_PIPE_PIPE_H
-
-/****************************************************************************
- * Compilation Switches
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <pthread.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#ifdef CONFIG_DISABLE_POLL
-#  error "The polling API is disabled"
-#endif
-
-/* Here are all of the configuration settings that must be met to have TCP/IP
- * poll/select support.  This kind of looks like overkill.
- *
- * CONFIG_NET                        - Network support must be enabled
- * CONFIG_NSOCKET_DESCRIPTORS        - Socket descriptors must be allocated
- * CONFIG_NET_TCP                    - Only support on TCP (because read-ahead
- *                                     ibuffering s not yet support for UDP)
- * CONFIG_NET_NTCP_READAHEAD_BUFFERS - TCP/IP read-ahead buffering must be enabled
- */
-
-#if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0 && \
-    defined(CONFIG_NET_TCP) && CONFIG_NET_NTCP_READAHEAD_BUFFERS > 0
-#  define HAVE_NETPOLL 1
-#else
-#  undef HAVE_NETPOLL
-#endif
-
-/* If debug is enabled, then use syslog so that OS debug output and
- * the test output are synchronized.
- *
- * These macros will differ depending upon if the toolchain supports
- * macros with a variable number of arguments or not.
- */
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-# ifdef CONFIG_DEBUG
-#   define message(...) syslog(__VA_ARGS__)
-#   define msgflush()
-# else
-#   define message(...) printf(__VA_ARGS__)
-#   define msgflush()   fflush(stdout)
-# endif
-#else
-# ifdef CONFIG_DEBUG
-#   define message      syslog
-#   define msgflush()
-# else
-#   define message      printf
-#   define msgflush()   fflush(stdout)
-# endif
-#endif
-
-#define FIFO_PATH1 "/dev/fifo0"
-#define FIFO_PATH2 "/dev/fifo1"
-
-#define POLL_LISTENER_DELAY   2000   /* 2 seconds */
-#define SELECT_LISTENER_DELAY 4      /* 4 seconds */
-#define NET_LISTENER_DELAY    3      /* 3 seconds */
-#define WRITER_DELAY          6      /* 6 seconds */
-
-#define LISTENER_PORT         5471
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-extern void *poll_listener(pthread_addr_t pvarg);
-extern void *select_listener(pthread_addr_t pvarg);
-
-#ifdef HAVE_NETPOLL
-extern void *net_listener(pthread_addr_t pvarg);
-extern void *net_reader(pthread_addr_t pvarg);
-#endif
-#endif /* __EXAMPLES_PIPE_PIPE_H */
diff --git a/apps/examples/poll/poll_listener.c b/apps/examples/poll/poll_listener.c
deleted file mode 100644
index fe1c95089..000000000
--- a/apps/examples/poll/poll_listener.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/****************************************************************************
- * examples/poll/poll_listener.c
- *
- *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <pthread.h>
-#include <poll.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-
-#include "poll_internal.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-#if defined(CONFIG_DEV_CONSOLE) && !defined(CONFIG_DEV_LOWCONSOLE)
-#   define HAVE_CONSOLE
-#   define NPOLLFDS 2
-#   define CONSNDX  0
-#   define FIFONDX  1
-#else
-#   undef  HAVE_CONSOLE
-#   define NPOLLFDS 1
-#   define FIFONDX  0
-#endif
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: poll_listener
- ****************************************************************************/
-
-void *poll_listener(pthread_addr_t pvarg)
-{
-  struct pollfd fds[NPOLLFDS];
-  char buffer[64];
-  ssize_t nbytes;
-  bool timeout;
-  bool pollin;
-  int nevents;
-  int fd;
-  int ret;
-  int i;
-
-  /* Open the FIFO for non-blocking read */
-
-  message("poll_listener: Opening %s for non-blocking read\n", FIFO_PATH1);
-  fd = open(FIFO_PATH1, O_RDONLY|O_NONBLOCK);
-  if (fd < 0)
-    {
-      message("poll_listener: ERROR Failed to open FIFO %s: %d\n",
-              FIFO_PATH1, errno);
-      (void)close(fd);
-      return (void*)-1;
-    }
-
-  /* Loop forever */
-
-  for (;;)
-    {
-      message("poll_listener: Calling poll()\n");
-
-      memset(fds, 0, sizeof(struct pollfd)*NPOLLFDS);
-#ifdef HAVE_CONSOLE
-      fds[CONSNDX].fd      = 0;
-      fds[CONSNDX].events  = POLLIN;
-      fds[CONSNDX].revents = 0;
-#endif
-      fds[FIFONDX].fd      = fd;
-      fds[FIFONDX].events  = POLLIN;
-      fds[FIFONDX].revents = 0;
-
-      timeout              = false;
-      pollin               = false;
-
-      ret = poll(fds, NPOLLFDS, POLL_LISTENER_DELAY);
-
-      message("\npoll_listener: poll returned: %d\n", ret);
-      if (ret < 0)
-        {
-          message("poll_listener: ERROR poll failed: %d\n", errno);
-        }
-      else if (ret == 0)
-        {
-          message("poll_listener: Timeout\n");
-          timeout = true;
-        }
-      else if (ret > NPOLLFDS)
-        {
-          message("poll_listener: ERROR poll reported: %d\n");
-        }
-      else
-        {
-          pollin = true;
-        }
-
-      nevents = 0;
-      for (i = 0; i < NPOLLFDS; i++)
-        {
-          message("poll_listener: FIFO revents[%d]=%02x\n", i, fds[i].revents);
-          if (timeout)
-            {
-              if (fds[i].revents != 0)
-                {
-                  message("poll_listener: ERROR? expected revents=00, received revents[%d]=%02x\n",
-                          fds[i].revents, i);
-                }
-            }
-          else if (pollin)
-            {
-               if (fds[i].revents == POLLIN)
-                 {
-                   nevents++;
-                 }
-               else if (fds[i].revents != 0)
-                {
-                   message("poll_listener: ERROR unexpected revents[i]=%02x\n",
-                           i, fds[i].revents);
-                 }
-            }
-        }
-
-      if (pollin && nevents != ret)
-        {
-           message("poll_listener: ERROR found %d events, poll reported %d\n", nevents, ret);
-        }
-
-      /* In any event, read until the pipe/serial  is empty */
-
-      for (i = 0; i < NPOLLFDS; i++)
-        {
-          do
-            {
-#ifdef HAVE_CONSOLE
-              /* Hack to work around the fact that the console driver on the
-               * simulator is always non-blocking.
-               */
-
-              if (i == CONSNDX)
-                {
-                  if ((fds[CONSNDX].revents & POLLIN) != 0)
-                    {
-                      buffer[0] = getchar();
-                      nbytes = 1;
-                    }
-                  else
-                    {
-                      nbytes = 0;
-                    }
-                }
-              else
-#endif
-                {
-                  /* The pipe works differently, it returns whatever data
-                   * it has available without blocking.
-                   */
-
-                  nbytes = read(fds[i].fd, buffer, 63);
-                }
-
-              if (nbytes <= 0)
-                {
-                  if (nbytes == 0 || errno == EAGAIN)
-                    {
-                      if ((fds[i].revents & POLLIN) != 0)
-                        {
-                          message("poll_listener: ERROR no read data[%d]\n", i);
-                        }
-                    }
-                  else if (errno != EINTR)
-                    {
-                      message("poll_listener: read[%d] failed: %d\n", i, errno);
-                    }
-                  nbytes = 0;
-                }
-              else
-                {
-                  if (timeout)
-                    {
-                      message("poll_listener: ERROR? Poll timeout, but data read[%d]\n", i);
-                      message("               (might just be a race condition)\n");
-                    }
-
-                  buffer[nbytes] = '\0';
-                  message("poll_listener: Read[%d] '%s' (%d bytes)\n", i, buffer, nbytes);
-                }
-
-              /* Suppress error report if no read data on the next time through */
-
-              fds[i].revents = 0;
-            }
-          while (nbytes > 0);
-        }
- 
-      /* Make sure that everything is displayed */
-
-      msgflush();
-    }
-
-  /* Won't get here */
-
-  (void)close(fd);
-  return NULL;
-}
diff --git a/apps/examples/poll/poll_main.c b/apps/examples/poll/poll_main.c
deleted file mode 100644
index 0c475fa7a..000000000
--- a/apps/examples/poll/poll_main.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/****************************************************************************
- * examples/poll/poll_main.c
- *
- *   Copyright (C) 2008, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <pthread.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <errno.h>
-#include <debug.h>
-
-#include "poll_internal.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: poll_main
- ****************************************************************************/
-
-int poll_main(int argc, char *argv[])
-{
-  char buffer[64];
-  ssize_t nbytes;
-  pthread_t tid1;
-  pthread_t tid2;
-#ifdef HAVE_NETPOLL
-  pthread_t tid3;
-#endif
-  int count;
-  int fd1 = -1;
-  int fd2 = -1;
-  int ret;
-  int exitcode = 0;
-
-  /* Open FIFOs */
-
-  message("\npoll_main: Creating FIFO %s\n", FIFO_PATH1);
-  ret = mkfifo(FIFO_PATH1, 0666);
-  if (ret < 0)
-    {
-      message("poll_main: mkfifo failed: %d\n", errno);
-      exitcode = 1;
-      goto errout;
-    }
-
-  message("\npoll_main: Creating FIFO %s\n", FIFO_PATH2);
-  ret = mkfifo(FIFO_PATH2, 0666);
-  if (ret < 0)
-    {
-      message("poll_main: mkfifo failed: %d\n", errno);
-      exitcode = 2;
-      goto errout;
-    }
-
-  /* Open the FIFOs for blocking, write */
-
-  fd1 = open(FIFO_PATH1, O_WRONLY);
-  if (fd1 < 0)
-    {
-      message("poll_main: Failed to open FIFO %s for writing, errno=%d\n",
-              FIFO_PATH1, errno);
-      exitcode = 3;
-      goto errout;
-    }
-
-  fd2 = open(FIFO_PATH2, O_WRONLY);
-  if (fd2 < 0)
-    {
-      message("poll_main: Failed to open FIFO %s for writing, errno=%d\n",
-              FIFO_PATH2, errno);
-      exitcode = 4;
-      goto errout;
-    }
-
-  /* Start the listeners */
-
-  message("poll_main: Starting poll_listener thread\n");
-
-  ret = pthread_create(&tid1, NULL, poll_listener, NULL);
-  if (ret != 0)
-    {
-      message("poll_main: Failed to create poll_listener thread: %d\n", ret);
-      exitcode = 5;
-      goto errout;
-    }
-
-  message("poll_main: Starting select_listener thread\n");
-
-  ret = pthread_create(&tid2, NULL, select_listener, NULL);
-  if (ret != 0)
-    {
-      message("poll_main: Failed to create select_listener thread: %d\n", ret);
-      exitcode = 6;
-      goto errout;
-    }
-
-#ifdef HAVE_NETPOLL
-#ifdef CONFIG_NET_TCPBACKLOG
-  message("poll_main: Starting net_listener thread\n");
-
-  ret = pthread_create(&tid3, NULL, net_listener, NULL);
-#else
-  message("poll_main: Starting net_reader thread\n");
-
-  ret = pthread_create(&tid3, NULL, net_reader, NULL);
-#endif
-  if (ret != 0)
-    {
-      message("poll_main: Failed to create net_listener thread: %d\n", ret);
-    }
-#endif
-
-  /* Loop forever */
-
-  for (count = 0; ; count++)
-    {
-      /* Send a message to the listener... this should wake the listener
-       * from the poll.
-       */
-
-      sprintf(buffer, "Message %d", count);
-      nbytes = write(fd1, buffer, strlen(buffer));
-      if (nbytes < 0)
-        {
-          message("poll_main: Write to fd1 failed: %d\n", errno);
-          exitcode = 7;
-          goto errout;
-        }
-
-      nbytes = write(fd2, buffer, strlen(buffer));
-      if (nbytes < 0)
-        {
-          message("poll_main: Write fd2 failed: %d\n", errno);
-          exitcode = 8;
-          goto errout;
-        }
-
-      message("\npoll_main: Sent '%s' (%d bytes)\n", buffer, nbytes);
-      msgflush();
-
-      /* Wait awhile.  This delay should be long enough that the
-       * listener will timeout.
-       */
-
-      sleep(WRITER_DELAY);
-    }
-
-errout:
-  if (fd1 >= 0)
-    {
-      close(fd1);
-    }
-
-  if (fd2 >= 0)
-    {
-      close(fd2);
-    }
-
-  fflush(stdout);
-  return exitcode;
-}
diff --git a/apps/examples/poll/select_listener.c b/apps/examples/poll/select_listener.c
deleted file mode 100644
index 5cb7e7805..000000000
--- a/apps/examples/poll/select_listener.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/****************************************************************************
- * examples/poll/select_listener.c
- *
- *   Copyright (C) 2008, 2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/select.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <pthread.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-
-#include "poll_internal.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: select_listener
- ****************************************************************************/
-
-void *select_listener(pthread_addr_t pvarg)
-{
-  fd_set rfds;
-  struct timeval tv;
-  char buffer[64];
-  ssize_t nbytes;
-  bool timeout;
-  bool ready;
-  int fd;
-  int ret;
-
-  /* Open the FIFO for non-blocking read */
-
-  message("select_listener: Opening %s for non-blocking read\n", FIFO_PATH2);
-  fd = open(FIFO_PATH2, O_RDONLY|O_NONBLOCK);
-  if (fd < 0)
-    {
-      message("select_listener: ERROR Failed to open FIFO %s: %d\n",
-              FIFO_PATH2, errno);
-      (void)close(fd);
-      return (void*)-1;
-    }
-
-  /* Loop forever */
-
-  for (;;)
-    {
-      message("select_listener: Calling select()\n");
-
-      FD_ZERO(&rfds);
-      FD_SET(fd, &rfds);
-
-      tv.tv_sec  = SELECT_LISTENER_DELAY;
-      tv.tv_usec = 0;
-
-      timeout    = false;
-      ready      = false;
-
-      ret = select(fd+1, (FAR fd_set*)&rfds, (FAR fd_set*)NULL, (FAR fd_set*)NULL, &tv);
-      message("\nselect_listener: select returned: %d\n", ret);
-
-      if (ret < 0)
-        {
-          message("select_listener: ERROR select failed: %d\n");
-        }
-      else if (ret == 0)
-        {
-          message("select_listener: Timeout\n");
-          timeout = true;
-        }
-      else
-        {
-          if (ret != 1)
-            {
-              message("select_listener: ERROR poll reported: %d\n");
-            }
-          else
-            {
-              ready = true;
-            }
-
-          if (!FD_ISSET(fd, rfds))
-            {
-              message("select_listener: ERROR fd=%d not in fd_set\n");
-            }
-        }
-
-      /* In any event, read until the pipe is empty */
-
-      do
-        {
-          nbytes = read(fd, buffer, 63);
-          if (nbytes <= 0)
-            {
-              if (nbytes == 0 || errno == EAGAIN)
-                {
-                  if (ready)
-                    {
-                      message("select_listener: ERROR no read data\n");
-                    }
-                }
-              else if (errno != EINTR)
-                {
-                  message("select_listener: read failed: %d\n", errno);
-                }
-              nbytes = 0;
-            }
-          else
-            {
-              if (timeout)
-                {
-                  message("select_listener: ERROR? Poll timeout, but data read\n");
-                  message("               (might just be a race condition)\n");
-                }
-
-              buffer[nbytes] = '\0';
-              message("select_listener: Read '%s' (%d bytes)\n", buffer, nbytes);
-            }
-
-          timeout = false;
-          ready   = false;
-        }
-      while (nbytes > 0);
-
-      /* Make sure that everything is displayed */
-
-      msgflush();
-    }
-
-  /* Won't get here */
-
-  (void)close(fd);
-  return NULL;
-}
diff --git a/apps/examples/posix_spawn/Kconfig b/apps/examples/posix_spawn/Kconfig
deleted file mode 100644
index 508065913..000000000
--- a/apps/examples/posix_spawn/Kconfig
+++ /dev/null
@@ -1,29 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_POSIXSPAWN
-	bool "posix_spawn Unit Test"
-	default n
-	---help---
-		Enable the posix_spawn() unit test
-
-if EXAMPLES_POSIXSPAWN
-config EXAMPLES_POSIXSPAWN_DEVMINOR
-	int "ROMFS Minor Device Number"
-	default 0
-	---help---
-		The minor device number of the ROMFS block. For example, the N in /dev/ramN.
-		Used for registering the RAM block driver that will hold the ROMFS file system
-		containing the ELF executables to be tested.  Default: 0
-
-config EXAMPLES_POSIXSPAWN_DEVPATH
-	string "ROMFS Devie Path"
-	default "/dev/ram0"
-	---help---
-		The path to the ROMFS block driver device.  This must match EXAMPLES_POSIXSPAWN_DEVMINOR.
-		Used for registering the RAM block driver that will hold the ROMFS file system
-		containing the ELF executables to be tested.  Default: "/dev/ram0"
-
-endif
diff --git a/apps/examples/posix_spawn/Makefile b/apps/examples/posix_spawn/Makefile
deleted file mode 100644
index 0bfa36e55..000000000
--- a/apps/examples/posix_spawn/Makefile
+++ /dev/null
@@ -1,130 +0,0 @@
-############################################################################
-# apps/examples/posix_spawn/Makefile
-#
-#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# ELF Example
-
-ASRCS =
-CSRCS = spawn_main.c symtab.c
-
-AOBJS = $(ASRCS:.S=$(OBJEXT))
-COBJS = $(CSRCS:.c=$(OBJEXT))
-
-SRCS = $(ASRCS) $(CSRCS)
-OBJS = $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path . --dep-path filesystem
-
-# Build targets
-
-VPATH = filesystem
-
-all: build
-.PHONY: build clean_filesystem clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-# This is a little messy.  The build is broken into two pieces:  (1) the
-# filesystem/ subdir build that auto-generates several files, and (2) the library
-# build.  This is done because we need a fresh build context after auto-
-# generating the source files.
-
-build_lib: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-
-build:
-	@$(MAKE) -C filesystem TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" CROSSDEV=$(CROSSDEV)
-	@$(MAKE) TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" build_lib
-
-context:
-
-# We can't make dependencies in this directory because the required
-# header files may not yet exist.
-
-.depend:
-	@touch $@
-
-depend: .depend
-
-clean_filesystem:
-	@$(MAKE) -C filesystem TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" CROSSDEV=$(CROSSDEV) clean
-
-clean: clean_filesystem
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
-# There are no dependencies in this directory.  Some of more important
-# and more obvious dependencies are hard-coded here:
-
-spawn_main.o: spawn_main.c \
-	$(TOPDIR)/include/nuttx/config.h \
-	$(TOPDIR)/include/nuttx/compiler.h \
-	$(TOPDIR)/include/sys/mount.h \
-	$(TOPDIR)/include/stdio.h \
-	$(TOPDIR)/include/stdlib.h \
-	$(TOPDIR)/include/unistd.h \
-	$(TOPDIR)/include/string.h \
-	$(TOPDIR)/include/fcntl.h \
-	$(TOPDIR)/include/spawn.h \
-	$(TOPDIR)/include/debug.h \
-	$(TOPDIR)/include/errno.h \
-	$(TOPDIR)/include/nuttx/ramdisk.h \
-	$(TOPDIR)/include/nuttx/binfmt/elf.h \
-	$(TOPDIR)/include/nuttx/binfmt/symtab.h \
-	filesystem/romfs.h
-
-symtab.o: filesystem/symtab.c \
-	$(TOPDIR)/include/nuttx/compiler.h \
-	$(TOPDIR)/include/nuttx/binfmt/symtab.h
diff --git a/apps/examples/posix_spawn/filesystem/Makefile b/apps/examples/posix_spawn/filesystem/Makefile
deleted file mode 100644
index 26897426c..000000000
--- a/apps/examples/posix_spawn/filesystem/Makefile
+++ /dev/null
@@ -1,88 +0,0 @@
-############################################################################
-# apps/examples/posix_spawn/filesystem/Makefile
-#
-#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/Make.defs
-include $(APPDIR)$(DELIM)Make.defs
-
-SPAWN_DIR = $(APPDIR)$(DELIM)examples$(DELIM)posix_spawn
-FILESYSTEM_DIR = $(SPAWN_DIR)$(DELIM)filesystem
-ROMFS_DIR = $(FILESYSTEM_DIR)$(DELIM)romfs
-ROMFS_IMG = $(FILESYSTEM_DIR)$(DELIM)romfs.img
-ROMFS_HDR = $(FILESYSTEM_DIR)$(DELIM)romfs.h
-SYMTAB_SRC = $(FILESYSTEM_DIR)$(DELIM)symtab.c
-
-all: $(ROMFS_HDR) $(SYMTAB_SRC)
-.PHONY: all hello/hello redirect/redirect clean populate
-
-# Create the romfs directory
-
-$(ROMFS_DIR):
-	$(Q) mkdir $(ROMFS_DIR)
-
-# Build the hello test program
-
-hello/hello:
-	$(Q) $(MAKE) -C hello hello TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" ROMFS_DIR="$(ROMFS_DIR)"
-
-# Build the redirection test program
-
-redirect/redirect:
-	$(Q) $(MAKE) -C redirect redirect TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" ROMFS_DIR="$(ROMFS_DIR)"
-
-# Create the romfs.img file from the romfs directory
-
-$(ROMFS_IMG): hello/hello redirect/redirect testdata.txt $(ROMFS_DIR)
-	$(Q) $(MAKE) -C hello install TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" ROMFS_DIR="$(ROMFS_DIR)"
-	$(Q) $(MAKE) -C redirect install TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" ROMFS_DIR="$(ROMFS_DIR)"
-	$(Q) install --mode=0644 testdata.txt $(ROMFS_DIR)/testdata.txt
-	$(Q) genromfs -f $@ -d $(ROMFS_DIR) -V "POSIXSPAWN"
-
-# Create the romfs.h header file from the romfs.img file
-
-$(ROMFS_HDR) : $(ROMFS_IMG)
-	$(Q) (cd $(FILESYSTEM_DIR); xxd -i romfs.img | sed -e "s/^unsigned/static const unsigned/g" >$@)
-
-# Create the exported symbol table
-
-$(SYMTAB_SRC): $(ROMFS_DIR)/hello $(ROMFS_DIR)/redirect $(ROMFS_DIR)/testdata.txt
-	$(Q) $(FILESYSTEM_DIR)$(DELIM)mksymtab.sh $(ROMFS_DIR) >$@
-
-# Clean each subdirectory
-
-clean:
-	$(Q) $(MAKE) -C hello clean TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" ROMFS_DIR="$(ROMFS_DIR)"
-	$(Q) $(MAKE) -C redirect clean TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" ROMFS_DIR="$(ROMFS_DIR)"
-	$(Q) rm -f $(ROMFS_HDR) $(ROMFS_IMG) $(SYMTAB_SRC)
-	$(Q) rm -rf $(ROMFS_DIR)
diff --git a/apps/examples/posix_spawn/filesystem/hello/hello.c b/apps/examples/posix_spawn/filesystem/hello/hello.c
deleted file mode 100644
index 1b269d85f..000000000
--- a/apps/examples/posix_spawn/filesystem/hello/hello.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/****************************************************************************
- * examples/posix_spawn/filesystem/hello/hello.c
- *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <stdio.h>
-#include <stdlib.h>
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-int main(int argc, char **argv)
-{
-  int i;
-
-  /* Mandatory "Hello, world!" */
-
-  puts("Getting ready to say \"Hello, world\"\n");
-  printf("Hello, world!\n");
-  puts("It has been said.\n");
-
-  /* Print arguments */
-
-  printf("argc\t= %d\n", argc);
-  printf("argv\t= 0x%p\n", argv);
-
-  for (i = 0; i < argc; i++)
-    {
-      printf("argv[%d]\t= ", i);
-      if (argv[i])
-        {
-          printf("(0x%p) \"%s\"\n", argv[i], argv[i]);
-        }
-      else
-        {
-          printf("NULL?\n");
-        }
-    }
-
-  printf("argv[%d]\t= 0x%p\n", argc, argv[argc]);
-  printf("Goodbye, world!\n");
-  return 0;
-}
diff --git a/apps/examples/posix_spawn/filesystem/mksymtab.sh b/apps/examples/posix_spawn/filesystem/mksymtab.sh
deleted file mode 100755
index 51408a89c..000000000
--- a/apps/examples/posix_spawn/filesystem/mksymtab.sh
+++ /dev/null
@@ -1,51 +0,0 @@
-#!/bin/bash
-
-usage="Usage: $0 <test-dir-path>"
-
-# Check for the required ROMFS directory path
-
-dir=$1
-if [ -z "$dir" ]; then
-	echo "ERROR: Missing <test-dir-path>"
-	echo ""
-	echo $usage
-	exit 1
-fi
-
-if [ ! -d "$dir" ]; then
-	echo "ERROR: Directory $dir does not exist"
-	echo ""
-	echo $usage
-	exit 1
-fi
-
-# Extract all of the undefined symbols from the ELF files and create a
-# list of sorted, unique undefined variable names.
-
-varlist=`find ${dir} -executable -type f | xargs nm | fgrep ' U ' | sed -e "s/^[ ]*//g" | cut -d' ' -f2 | sort | uniq`
-
-# Now output the symbol table as a structure in a C source file.  All
-# undefined symbols are declared as void* types.  If the toolchain does
-# any kind of checking for function vs. data objects, then this could
-# faile
-
-echo "#include <nuttx/compiler.h>"
-echo "#include <nuttx/binfmt/symtab.h>"
-echo ""
-
-for var in $varlist; do
-	echo "extern void *${var};"
-done
-
-echo ""
-echo "const struct symtab_s exports[] = "
-echo "{"
-
-for var in $varlist; do
-	echo "  {\"${var}\", &${var}},"
-done
-
-echo "};"
-echo ""
-echo "const int nexports = sizeof(exports) / sizeof(struct symtab_s);"
-
diff --git a/apps/examples/posix_spawn/filesystem/redirect/redirect.c b/apps/examples/posix_spawn/filesystem/redirect/redirect.c
deleted file mode 100644
index 61638df79..000000000
--- a/apps/examples/posix_spawn/filesystem/redirect/redirect.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/****************************************************************************
- * examples/posix_spawn/filesystem/redirect/redirect.c
- *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <stdio.h>
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-int main(int argc, char **argv)
-{
-  int ch;
-
-  printf("Entering the stdin redirection test\n");
-
-  /* stdin should have been redirected to testdata.txt.  Read and print until
-   * we hit the end of file.
-   */
-
-  while ((ch = getchar()) != EOF)
-    {
-      putchar(ch);
-    }
-
-  printf("Exit-ing the stdin redirection test\n");
-  return 0;
-}
diff --git a/apps/examples/posix_spawn/filesystem/testdata.txt b/apps/examples/posix_spawn/filesystem/testdata.txt
deleted file mode 100644
index bb581fbb5..000000000
--- a/apps/examples/posix_spawn/filesystem/testdata.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Now is the time for all good men to come to the aid of their party.
-
diff --git a/apps/examples/posix_spawn/spawn_main.c b/apps/examples/posix_spawn/spawn_main.c
deleted file mode 100644
index 0ca5f9107..000000000
--- a/apps/examples/posix_spawn/spawn_main.c
+++ /dev/null
@@ -1,460 +0,0 @@
-/****************************************************************************
- * examples/posix_spawn/spawn_main.c
- *
- *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <nuttx/compiler.h>
-
-#include <sys/mount.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <spawn.h>
-#include <debug.h>
-#include <errno.h>
-
-#include <nuttx/ramdisk.h>
-#include <nuttx/binfmt/elf.h>
-#include <nuttx/binfmt/symtab.h>
-
-#include "filesystem/romfs.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/* Check configuration.  This is not all of the configuration settings that
- * are required -- only the more obvious.
- */
-
-#if CONFIG_NFILE_DESCRIPTORS < 1
-#  error "You must provide file descriptors via CONFIG_NFILE_DESCRIPTORS in your configuration file"
-#endif
-
-#ifdef CONFIG_BINFMT_DISABLE
-#  error "The binary loader is disabled (CONFIG_BINFMT_DISABLE)!"
-#endif
-
-#ifndef CONFIG_ELF
-#  error "You must select CONFIG_ELF in your configuration file"
-#endif
-
-#ifndef CONFIG_FS_ROMFS
-#  error "You must select CONFIG_FS_ROMFS in your configuration file"
-#endif
-
-#ifdef CONFIG_DISABLE_MOUNTPOINT
-#  error "You must not disable mountpoints via CONFIG_DISABLE_MOUNTPOINT in your configuration file"
-#endif
-
-#ifdef CONFIG_BINFMT_DISABLE
-#  error "You must not disable loadable modules via CONFIG_BINFMT_DISABLE in your configuration file"
-#endif
-
-/* Describe the ROMFS file system */
-
-#define SECTORSIZE   512
-#define NSECTORS(b)  (((b)+SECTORSIZE-1)/SECTORSIZE)
-#define MOUNTPT      "/mnt/romfs"
-
-#ifndef CONFIG_EXAMPLES_ELF_DEVMINOR
-#  define CONFIG_EXAMPLES_ELF_DEVMINOR 0
-#endif
-
-#ifndef CONFIG_EXAMPLES_ELF_DEVPATH
-#  define CONFIG_EXAMPLES_ELF_DEVPATH "/dev/ram0"
-#endif
-
-/* If CONFIG_DEBUG is enabled, use dbg instead of printf so that the
- * output will be synchronous with the debug output.
- */
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-#  ifdef CONFIG_DEBUG
-#    define message(format, arg...) dbg(format, ##arg)
-#    define err(format, arg...)     dbg(format, ##arg)
-#  else
-#    define message(format, arg...) printf(format, ##arg)
-#    define err(format, arg...)     fprintf(stderr, format, ##arg)
-#  endif
-#else
-#  ifdef CONFIG_DEBUG
-#    define message                 dbg
-#    define err                     dbg
-#  else
-#    define message                 printf
-#    define err                     printf
-#  endif
-#endif
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static unsigned int g_mminitial;  /* Initial memory usage */
-static unsigned int g_mmstep;     /* Memory Usage at beginning of test step */
-
-static const char delimiter[] =
-  "****************************************************************************";
-static const char g_redirect[] = "redirect";
-static const char g_hello[]    = "hello";
-static const char g_data[]     = "testdata.txt";
-
-static char fullpath[128];
-
-static char * const g_argv[4] =
-  { "Argument 1", "Argument 2", "Argument 3", NULL };
-
-/****************************************************************************
- * Symbols from Auto-Generated Code
- ****************************************************************************/
-
-extern const struct symtab_s exports[];
-extern const int nexports;
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: mm_update
- ****************************************************************************/
-
-static void mm_update(FAR unsigned int *previous, FAR const char *msg)
-{
-  struct mallinfo mmcurrent;
-
-  /* Get the current memory usage */
-
-#ifdef CONFIG_CAN_PASS_STRUCTS
-  mmcurrent = mallinfo();
-#else
-  (void)mallinfo(&mmcurrent);
-#endif
-
-  /* Show the change from the previous time */
-
-  printf("\nMemory Usage %s:\n", msg);
-  printf("  Before: %8u After: %8u Change: %8d\n",
-         *previous, mmcurrent.uordblks, (int)mmcurrent.uordblks - (int)*previous);
-
-  /* Set up for the next test */
-
-  *previous =  mmcurrent.uordblks;
-}
-
-/****************************************************************************
- * Name: mm_initmonitor
- ****************************************************************************/
-
-static void mm_initmonitor(void)
-{
-  struct mallinfo mmcurrent;
-
-#ifdef CONFIG_CAN_PASS_STRUCTS
-  mmcurrent = mallinfo();
-#else
-  (void)mallinfo(&mmcurrent);
-#endif
-
-  g_mminitial = mmcurrent.uordblks;
-  g_mmstep    = mmcurrent.uordblks;
-
-  printf("Initial memory usage: %d\n", mmcurrent.uordblks);
-}
-
-/****************************************************************************
- * Name: testheader
- ****************************************************************************/
-
-static inline void testheader(FAR const char *progname)
-{
-  message("\n%s\n* Executing %s\n%s\n\n", delimiter, progname, delimiter);
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: spawn_main
- ****************************************************************************/
-
-int spawn_main(int argc, char *argv[])
-{
-  posix_spawn_file_actions_t file_actions;
-  posix_spawnattr_t attr;
-  FAR const char *filepath;
-  pid_t pid;
-  int ret;
-
-  /* Initialize the memory monitor */
-
-  mm_initmonitor();
-
-  /* Initialize the ELF binary loader */
-
-  message("Initializing the ELF binary loader\n");
-  ret = elf_initialize();
-  if (ret < 0)
-    {
-      err("ERROR: Initialization of the ELF loader failed: %d\n", ret);
-      exit(1);
-    }
-
-  mm_update(&g_mmstep, "after elf_initialize");
-
-  /* Create a ROM disk for the ROMFS filesystem */
-
-  message("Registering romdisk at /dev/ram%d\n", CONFIG_EXAMPLES_ELF_DEVMINOR);
-  ret = romdisk_register(CONFIG_EXAMPLES_ELF_DEVMINOR, (FAR uint8_t *)romfs_img,
-                         NSECTORS(romfs_img_len), SECTORSIZE);
-  if (ret < 0)
-    {
-      err("ERROR: romdisk_register failed: %d\n", ret);
-      elf_uninitialize();
-      exit(1);
-    }
-
-  mm_update(&g_mmstep, "after romdisk_register");
-
-  /* Mount the file system */
-
-  message("Mounting ROMFS filesystem at target=%s with source=%s\n",
-         MOUNTPT, CONFIG_EXAMPLES_ELF_DEVPATH);
-
-  ret = mount(CONFIG_EXAMPLES_ELF_DEVPATH, MOUNTPT, "romfs", MS_RDONLY, NULL);
-  if (ret < 0)
-    {
-      err("ERROR: mount(%s,%s,romfs) failed: %s\n",
-          CONFIG_EXAMPLES_ELF_DEVPATH, MOUNTPT, errno);
-      elf_uninitialize();
-    }
-
-  mm_update(&g_mmstep, "after mount");
-
-  /* Does the system support the PATH variable?  Has the PATH variable
-   * already been set?  If YES and NO, then set the PATH variable to
-   * the ROMFS mountpoint.
-   */
-
-#if defined(CONFIG_BINFMT_EXEPATH) && !defined(CONFIG_PATH_INITIAL)
-  (void)setenv("PATH", MOUNTPT, 1);
-#endif
-
-  /* Make sure that we are using our symbol take */
-
-  exec_setsymtab(exports, nexports);
-
-  /*************************************************************************
-   * Case 1: Simple program with arguments
-   *************************************************************************/
-
-  /* Output a seperated so that we can clearly discriminate the output of
-   * this program from the others.
-   */
-
-  testheader(g_hello);
-
-  /* Initialize the attributes file actions structure */
-
-  ret = posix_spawn_file_actions_init(&file_actions);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawn_file_actions_init failed: %d\n", ret);
-    }
-  posix_spawn_file_actions_dump(&file_actions);
-
-  ret = posix_spawnattr_init(&attr);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawnattr_init failed: %d\n", ret);
-    }
-  posix_spawnattr_dump(&attr);
-
-  mm_update(&g_mmstep, "after file_action/attr init");
-
-  /* If the binary loader does not support the PATH variable, then
-   * create the full path to the executable program.  Otherwise,
-   * use the relative path so that the binary loader will have to
-   * search the PATH variable to find the executable.
-   */
-
-#ifdef CONFIG_BINFMT_EXEPATH
-  filepath = g_hello;
-#else
-  snprintf(fullpath, 128, "%s/%s", MOUNTPT, g_hello);
-  filepath = fullpath;
-#endif
-
-  /* Execute the program */
-
-  mm_update(&g_mmstep, "before posix_spawn");
-
-  ret = posix_spawn(&pid, filepath, &file_actions, &attr, NULL, (FAR char * const*)&g_argv);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawn failed: %d\n", ret);
-    }
-
-  sleep(4);
-  mm_update(&g_mmstep, "after posix_spawn");
-
-  /* Free attibutes and file actions */
-
-  ret = posix_spawn_file_actions_destroy(&file_actions);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawn_file_actions_destroy failed: %d\n", ret);
-    }
-  posix_spawn_file_actions_dump(&file_actions);
-
-  ret = posix_spawnattr_destroy(&attr);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawnattr_destroy failed: %d\n", ret);
-    }
-  posix_spawnattr_dump(&attr);
-
-  mm_update(&g_mmstep, "after file_action/attr destruction");
-
-  /*************************************************************************
-   * Case 2: Simple program with redirection of stdin to a file input
-   *************************************************************************/
-
-  /* Output a seperated so that we can clearly discriminate the output of
-   * this program from the others.
-   */
-
-  testheader(g_redirect);
-
-  /* Initialize the attributes file actions structure */
-
-  ret = posix_spawn_file_actions_init(&file_actions);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawn_file_actions_init failed: %d\n", ret);
-    }
-  posix_spawn_file_actions_dump(&file_actions);
-
-  ret = posix_spawnattr_init(&attr);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawnattr_init failed: %d\n", ret);
-    }
-  posix_spawnattr_dump(&attr);
-
-  mm_update(&g_mmstep, "after file_action/attr init");
-
-  /* Set up to close stdin (0) and open testdata.txt as the program input */
-
-  ret = posix_spawn_file_actions_addclose(&file_actions, 0);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawn_file_actions_addclose failed: %d\n", ret);
-    }
-  posix_spawn_file_actions_dump(&file_actions);
-
-  snprintf(fullpath, 128, "%s/%s", MOUNTPT, g_data);
-  ret = posix_spawn_file_actions_addopen(&file_actions, 0, fullpath, O_RDONLY, 0644);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawn_file_actions_addopen failed: %d\n", ret);
-    }
-  posix_spawn_file_actions_dump(&file_actions);
-  
-  mm_update(&g_mmstep, "after adding file_actions");
-
-  /* If the binary loader does not support the PATH variable, then
-   * create the full path to the executable program.  Otherwise,
-   * use the relative path so that the binary loader will have to
-   * search the PATH variable to find the executable.
-   */
-
-#ifdef CONFIG_BINFMT_EXEPATH
-  filepath = g_redirect;
-#else
-  snprintf(fullpath, 128, "%s/%s", MOUNTPT, g_redirect);
-  filepath = fullpath;
-#endif
-
-  /* Execute the program */
-
-  mm_update(&g_mmstep, "before posix_spawn");
-
-  ret = posix_spawn(&pid, filepath, &file_actions, &attr, NULL, NULL);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawn failed: %d\n", ret);
-    }
-
-  sleep(2);
-  mm_update(&g_mmstep, "after posix_spawn");
-
-  /* Free attibutes and file actions */
-
-  ret = posix_spawn_file_actions_destroy(&file_actions);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawn_file_actions_destroy failed: %d\n", ret);
-    }
-  posix_spawn_file_actions_dump(&file_actions);
-
-  ret = posix_spawnattr_destroy(&attr);
-  if (ret != 0)
-    {
-      err("ERROR: posix_spawnattr_destroy failed: %d\n", ret);
-    }
-  posix_spawnattr_dump(&attr);
-
-  mm_update(&g_mmstep, "after file_action/attr destruction");
-
-  /* Clean-up */
-
-  elf_uninitialize();
-
-  mm_update(&g_mmstep, "End-of-Test");
-  return 0;
-}
diff --git a/apps/examples/pwm/Kconfig b/apps/examples/pwm/Kconfig
deleted file mode 100644
index 78edd2178..000000000
--- a/apps/examples/pwm/Kconfig
+++ /dev/null
@@ -1,48 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_PWM
-	bool "Pulse width modulation (PWM) example"
-	default n
-	depends on PWM && NSH_BUILTIN_APPS
-	---help---
-		Enable the Pulse width modulation (PWM) example
-
-if EXAMPLES_PWM
-
-config EXAMPLES_PWM_DEVPATH
-	string "PWM device path"
-	default "/dev/pwm0"
-	---help---
-		The path to the PWM device. Default: /dev/pwm0
-
-config EXAMPLES_PWM_FREQUENCY
-	int "Default PWM freququency"
-	default 100
-	---help---
-		The default PWM frequency.  Default: 100 Hz
-
-config EXAMPLES_PWM_DUTYPCT
-	int "Default PWM duty percentage"
-	default 50
-	---help---
-		The default PWM duty as a percentage.  Default: 50%
-
-config EXAMPLES_PWM_DURATION
-	int "Default PWM duration"
-	default 5 if !EXAMPLES_PWM_PULSECOUNT
-	---help---
-		The default PWM pulse train duration in seconds.  Used only if the current
-		pulse count is zero (pulse countis only supported if CONFIG_PWM_PULSECOUNT
-		is defined). Default: 5 seconds
-
-config EXAMPLES_PWM_PULSECOUNT
-	int "Default pulse count"
-	default 0
-	---help---
-	The initial PWM pulse count.  This option is only available if CONFIG_PWM_PULSECOUNT
-	is nonzero. Default: 0 (i.e., use the duration, not the count).
-
-endif
diff --git a/apps/examples/pwm/Makefile b/apps/examples/pwm/Makefile
deleted file mode 100644
index ece901a99..000000000
--- a/apps/examples/pwm/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
-############################################################################
-# apps/examples/pwm/Makefile
-#
-#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# PWM Example.
-
-ASRCS		=
-CSRCS		= pwm_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# PWM built-in application info
-
-APPNAME		= pwm
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: context clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/pwm/pwm.h b/apps/examples/pwm/pwm.h
deleted file mode 100644
index a6132ca8b..000000000
--- a/apps/examples/pwm/pwm.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/****************************************************************************
- * examples/examples/pwm/pwm.h
- *
- *   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __APPS_EXAMPLES_PWM_PWM_H
-#define __APPS_EXAMPLES_PWM_PWM_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-/* Configuration ************************************************************/
-/* CONFIG_NSH_BUILTIN_APPS - Build the PWM test as an NSH built-in function.
- *   Default: Not built!  The example can only be used as an NSH built-in
- *   application
- * CONFIG_EXAMPLES_PWM_DEVPATH - The path to the PWM device. Default: /dev/pwm0
- * CONFIG_EXAMPLES_PWM_FREQUENCY - The initial PWM frequency.  Default: 100 Hz
- * CONFIG_EXAMPLES_PWM_DUTYPCT - The initial PWM duty as a percentage.  Default: 50%
- * CONFIG_EXAMPLES_PWM_DURATION - The initial PWM pulse train duration in seconds.
- *   Used only if the current pulse count is zero (pulse count is only supported
- *   if CONFIG_PWM_PULSECOUNT is defined). Default: 5 seconds
- * CONFIG_EXAMPLES_PWM_PULSECOUNT - The initial PWM pulse count.  This option is
- *   only available if CONFIG_PWM_PULSECOUNT is defined. Default: 0 (i.e., use
- *   the duration, not the count).
- */
-
-#ifndef CONFIG_PWM
-#  error "PWM device support is not enabled (CONFIG_PWM)"
-#endif
-
-#ifndef CONFIG_NSH_BUILTIN_APPS
-#  warning "The PWM example only works as an NSH built-in application (CONFIG_NSH_BUILTIN_APPS)"
-#endif
-
-#ifndef CONFIG_EXAMPLES_PWM_DEVPATH
-#  define CONFIG_EXAMPLES_PWM_DEVPATH "/dev/pwm0"
-#endif
-
-#ifndef CONFIG_EXAMPLES_PWM_FREQUENCY
-#  define CONFIG_EXAMPLES_PWM_FREQUENCY 100
-#endif
-
-#ifndef CONFIG_EXAMPLES_PWM_DUTYPCT
-#  define CONFIG_EXAMPLES_PWM_DUTYPCT 50
-#endif
-
-#ifndef CONFIG_EXAMPLES_PWM_DURATION
-#  define CONFIG_EXAMPLES_PWM_DURATION 5
-#endif
-
-#ifndef CONFIG_EXAMPLES_PWM_COUNT
-#  define CONFIG_EXAMPLES_PWM_COUNT 0
-#endif
-
-/* Debug ********************************************************************/
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-#  ifdef CONFIG_DEBUG
-#    define message(...) syslog(__VA_ARGS__)
-#    define msgflush()
-#  else
-#    define message(...) printf(__VA_ARGS__)
-#    define msgflush() fflush(stdout)
-#  endif
-#else
-#  ifdef CONFIG_DEBUG
-#    define message syslog
-#    define msgflush()
-#  else
-#    define message printf
-#    define msgflush() fflush(stdout)
-#  endif
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Name: pwm_devinit()
- *
- * Description:
- *   Perform architecuture-specific initialization of the PWM hardware.  This
- *   interface must be provided by all configurations using apps/examples/pwm
- *
- ****************************************************************************/
-
-int pwm_devinit(void);
-
-#endif /* __APPS_EXAMPLES_PWM_PWM_H */
diff --git a/apps/examples/pwm/pwm_main.c b/apps/examples/pwm/pwm_main.c
deleted file mode 100644
index a46c10f55..000000000
--- a/apps/examples/pwm/pwm_main.c
+++ /dev/null
@@ -1,395 +0,0 @@
-/****************************************************************************
- * examples/pwm/pwm_main.c
- *
- *   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <sys/ioctl.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-#include <string.h>
-
-#include <nuttx/pwm.h>
-
-#include "pwm.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-struct pwm_state_s
-{
-  bool      initialized;
-  FAR char *devpath;
-  uint8_t   duty;
-  uint32_t  freq;
-#ifdef CONFIG_PWM_PULSECOUNT
-  uint32_t  count;
-#endif
-  int       duration;
-};
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static struct pwm_state_s g_pwmstate;
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: pwm_devpath
- ****************************************************************************/
-
-static void pwm_devpath(FAR struct pwm_state_s *pwm, FAR const char *devpath)
-{
-  /* Get rid of any old device path */
-
-  if (pwm->devpath)
-    {
-      free(pwm->devpath);
-    }
-
-  /* Then set-up the new device path by copying the string */
-
-  pwm->devpath = strdup(devpath);
-}
-
-/****************************************************************************
- * Name: pwm_help
- ****************************************************************************/
-
-static void pwm_help(FAR struct pwm_state_s *pwm)
-{
-  message("Usage: pwm [OPTIONS]\n");
-  message("\nArguments are \"sticky\".  For example, once the PWM frequency is\n");
-  message("specified, that frequency will be re-used until it is changed.\n");
-  message("\n\"sticky\" OPTIONS include:\n");
-  message("  [-p devpath] selects the PWM device.  "
-         "Default: %s Current: %s\n",
-         CONFIG_EXAMPLES_PWM_DEVPATH, pwm->devpath ? pwm->devpath : "NONE");
-  message("  [-f addr] selects the pulse frequency.  "
-         "Default: %d Hz Current: %d Hz\n",
-         CONFIG_EXAMPLES_PWM_FREQUENCY, pwm->freq);
-  message("  [-d duty] selcts the pulse duty as a percentage.  "
-          "Default: %d %% Current: %d %%\n",
-          CONFIG_EXAMPLES_PWM_DUTYPCT, pwm->duty);
-#ifdef CONFIG_PWM_PULSECOUNT
-  message("  [-n count] selects the pulse count.  "
-         "Default: %d Current: %d\n",
-         CONFIG_EXAMPLES_PWM_COUNT, pwm->count);
-#endif
-  message("  [-t duration] is the duration of the pulse train in seconds.  "
-          "Default: %d Current: %d\n",
-         CONFIG_EXAMPLES_PWM_DURATION, pwm->duration);
-  message("  [-h] shows this message and exits\n");
-}
-
-/****************************************************************************
- * Name: arg_string
- ****************************************************************************/
-
-static int arg_string(FAR char **arg, FAR char **value)
-{
-  FAR char *ptr = *arg;
-
-  if (ptr[2] == '\0')
-    {
-      *value = arg[1];
-      return 2;
-    }
-  else
-    {
-      *value = &ptr[2];
-      return 1;
-    }
-}
-
-/****************************************************************************
- * Name: arg_decimal
- ****************************************************************************/
-
-static int arg_decimal(FAR char **arg, FAR long *value)
-{
-  FAR char *string;
-  int ret;
-
-  ret = arg_string(arg, &string);
-  *value = strtol(string, NULL, 10);
-  return ret;
-}
-
-/****************************************************************************
- * Name: parse_args
- ****************************************************************************/
-
-static void parse_args(FAR struct pwm_state_s *pwm, int argc, FAR char **argv)
-{
-  FAR char *ptr;
-  FAR char *str;
-  long value;
-  int index;
-  int nargs;
- 
-  for (index = 1; index < argc; )
-    {
-      ptr = argv[index];
-      if (ptr[0] != '-')
-        {
-          message("Invalid options format: %s\n", ptr);
-          exit(0);
-        }
-
-      switch (ptr[1])
-        {
-          case 'f':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 1)
-              {
-                message("Frequency out of range: %ld\n", value);
-                exit(1);
-              }
-
-            pwm->freq = (uint32_t)value;
-            index += nargs;
-            break;
-
-          case 'd':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 1 || value > 99)
-              {
-                message("Duty out of range: %ld\n", value);
-                exit(1);
-              }
-
-            pwm->duty = (uint8_t)value;
-            index += nargs;
-            break;
-
-#ifdef CONFIG_PWM_PULSECOUNT
-          case 'n':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 0)
-              {
-                message("Count must be non-negative: %ld\n", value);
-                exit(1);
-              }
-
-            pwm->count = (uint32_t)value;
-            index += nargs;
-            break;
-
-#endif
-          case 'p':
-            nargs = arg_string(&argv[index], &str);
-            pwm_devpath(pwm, str);
-            index += nargs;
-            break;
-
-          case 't':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 1 || value > INT_MAX)
-              {
-                message("Duration out of range: %ld\n", value);
-                exit(1);
-              }
-
-            pwm->duration = (int)value;
-            index += nargs;
-            break;
-
-          case 'h':
-            pwm_help(pwm);
-            exit(0);
-        
-          default:
-            message("Unsupported option: %s\n", ptr);
-            pwm_help(pwm);
-            exit(1);
-        }
-    }
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: pwm_main
- ****************************************************************************/
-
-int pwm_main(int argc, char *argv[])
-{
-  struct pwm_info_s info;
-  int fd;
-  int ret;
-
-  /* Initialize the state data */
-
-  if (!g_pwmstate.initialized)
-    {
-      g_pwmstate.duty        = CONFIG_EXAMPLES_PWM_DUTYPCT;
-      g_pwmstate.freq        = CONFIG_EXAMPLES_PWM_FREQUENCY;
-      g_pwmstate.duration    = CONFIG_EXAMPLES_PWM_DURATION;
-#ifdef CONFIG_PWM_PULSECOUNT
-      g_pwmstate.count       = CONFIG_EXAMPLES_PWM_COUNT;
-#endif
-      g_pwmstate.initialized = true;
-    }
-
-  /* Parse the command line */
-
-  parse_args(&g_pwmstate, argc, argv);
-
-  /* Has a device been assigned? */
-
-  if (!g_pwmstate.devpath)
-    {
-      /* No.. use the default device */
-
-      pwm_devpath(&g_pwmstate, CONFIG_EXAMPLES_PWM_DEVPATH);
-    }
-
-  /* Initialization of the PWM hardware is performed by logic external to
-   * this test.
-   */
-
-  ret = pwm_devinit();
-  if (ret != OK)
-    {
-      message("pwm_main: pwm_devinit failed: %d\n", ret);
-      goto errout;
-    }
-
-  /* Open the PWM device for reading */
-
-  fd = open(g_pwmstate.devpath, O_RDONLY);
-  if (fd < 0)
-    {
-      message("pwm_main: open %s failed: %d\n", g_pwmstate.devpath, errno);
-      goto errout;
-    }
-
-  /* Configure the characteristics of the pulse train */
-
-  info.frequency = g_pwmstate.freq;
-  info.duty      = ((uint32_t)g_pwmstate.duty << 16) / 100;
-#ifdef CONFIG_PWM_PULSECOUNT
-  info.count     = g_pwmstate.count;
-
-  message("pwm_main: starting output with frequency: %d duty: %08x count: %d\n",
-          info.frequency, info.duty, info.count);
-
-#else
-  message("pwm_main: starting output with frequency: %d duty: %08x\n",
-          info.frequency, info.duty);
-
-#endif
-  
-  ret = ioctl(fd, PWMIOC_SETCHARACTERISTICS, (unsigned long)((uintptr_t)&info));
-  if (ret < 0)
-    {
-      message("pwm_main: ioctl(PWMIOC_SETCHARACTERISTICS) failed: %d\n", errno);
-      goto errout_with_dev;
-    }
-
-  /* Then start the pulse train.  Since the driver was opened in blocking
-   * mode, this call will block if the count value is greater than zero.
-   */
-
-  ret = ioctl(fd, PWMIOC_START, 0);
-  if (ret < 0)
-    {
-      message("pwm_main: ioctl(PWMIOC_START) failed: %d\n", errno);
-      goto errout_with_dev;
-    }
-
-  /* It a non-zero count was not specified, then wait for the selected
-   * duration, then stop the PWM output.
-   */
-  
-#ifdef CONFIG_PWM_PULSECOUNT
-  if (info.count == 0)
-#endif
-    {
-      /* Wait for the specified duration */
-
-      sleep(g_pwmstate.duration);
-
-      /* Then stop the  pulse train */
-
-      message("pwm_main: stopping output\n", info.frequency, info.duty);
-
-      ret = ioctl(fd, PWMIOC_STOP, 0);
-      if (ret < 0)
-        {
-          message("pwm_main: ioctl(PWMIOC_STOP) failed: %d\n", errno);
-          goto errout_with_dev;
-        }
-    }
-
- close(fd);
- msgflush();
- return OK;
-
-errout_with_dev:
-  close(fd);
-errout:
-  msgflush();
-  return ERROR;
-}
diff --git a/apps/examples/qencoder/Kconfig b/apps/examples/qencoder/Kconfig
deleted file mode 100644
index e0026d08c..000000000
--- a/apps/examples/qencoder/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_QENCODER
-	bool "Quadrature encoder example"
-	default n
-	---help---
-		Enable the quadrature encoder example
-
-if EXAMPLES_QENCODER
-endif
diff --git a/apps/examples/qencoder/Makefile b/apps/examples/qencoder/Makefile
deleted file mode 100644
index 9668796e6..000000000
--- a/apps/examples/qencoder/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
-############################################################################
-# apps/examples/qe/Makefile
-#
-#   Copyright (C) 2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# NuttX NX Graphics Example.
-
-ASRCS		=
-CSRCS		= qe_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Quadrature Encoder built-in application info
-
-APPNAME		= qe
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: context clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/qencoder/qe.h b/apps/examples/qencoder/qe.h
deleted file mode 100644
index 3c20511ca..000000000
--- a/apps/examples/qencoder/qe.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/****************************************************************************
- * examples/examples/qe/qe.h
- *
- *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __APPS_EXAMPLES_QENCODER_QE_H
-#define __APPS_EXAMPLES_QENCODER_QE_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-/* Configuration ************************************************************/
-/* CONFIG_NSH_BUILTIN_APPS - Build the QE test as an NSH built-in function.
- *  Default: Built as a standalone problem
- * CONFIG_EXAMPLES_QENCODER_DEVPATH - The path to the QE device. Default:
- *  /dev/qe0
- * CONFIG_EXAMPLES_QENCODER_NSAMPLES - If CONFIG_NSH_BUILTIN_APPS
- *   is defined, then the number of samples is provided on the command line
- *   and this value is ignored.  Otherwise, this number of samples is
- *   collected and the program terminates.  Default:  Samples are collected
- *   indefinitely.
- * CONFIG_EXAMPLES_QENCODER_DELAY - This value provides the delay (in
- *   milliseonds) between each sample.  If CONFIG_NSH_BUILTIN_APPS
- *   is defined, then this value is the default delay if no other delay is
- *   provided on the command line.  Default:  100 milliseconds
- */
-
-#ifndef CONFIG_QENCODER
-#  error "QE device support is not enabled (CONFIG_QENCODER)"
-#endif
-
-#ifndef CONFIG_EXAMPLES_QENCODER_DEVPATH
-#  define CONFIG_EXAMPLES_QENCODER_DEVPATH "/dev/qe0"
-#endif
-
-#ifndef CONFIG_EXAMPLES_QENCODER_DELAY
-#  define CONFIG_EXAMPLES_QENCODER_DELAY 100
-#endif
-
-/* Debug ********************************************************************/
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-#  ifdef CONFIG_DEBUG
-#    define message(...) syslog(__VA_ARGS__)
-#    define msgflush()
-#  else
-#    define message(...) printf(__VA_ARGS__)
-#    define msgflush() fflush(stdout)
-#  endif
-#else
-#  ifdef CONFIG_DEBUG
-#    define message syslog
-#    define msgflush()
-#  else
-#    define message printf
-#    define msgflush() fflush(stdout)
-#  endif
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-struct qe_example_s
-{
-  bool         initialized; /* True: QE devices have been initialized */
-  bool         reset;       /* True: set the count back to zero */
-  FAR char    *devpath;     /* Path to the QE device */
-  unsigned int nloops;      /* Collect this number of samples */
-  unsigned int delay;       /* Delay this number of seconds between samples */
-};
-#endif
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-extern struct qe_example_s g_qeexample;
-#endif
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Name: qe_devinit()
- *
- * Description:
- *   Perform architecuture-specific initialization of the QE hardware.  This
- *   interface must be provided by all configurations using apps/examples/qe
- *
- ****************************************************************************/
-
-int qe_devinit(void);
-
-#endif /* __APPS_EXAMPLES_QENCODER_QE_H */
diff --git a/apps/examples/qencoder/qe_main.c b/apps/examples/qencoder/qe_main.c
deleted file mode 100644
index 8c185ea1b..000000000
--- a/apps/examples/qencoder/qe_main.c
+++ /dev/null
@@ -1,362 +0,0 @@
-/****************************************************************************
- * examples/qe/qe_main.c
- *
- *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <sys/ioctl.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/sensors/qencoder.h>
-
-#include "qe.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-struct qe_example_s g_qeexample;
-#endif
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: qe_devpath
- ****************************************************************************/
-
-static void qe_devpath(FAR const char *devpath)
-{
-  /* Get rid of any old device path */
-
-  if (g_qeexample.devpath)
-    {
-      free(g_qeexample.devpath);
-    }
-
-  /* The set-up the new device path by copying the string */
-
-  g_qeexample.devpath = strdup(devpath);
-}
-
-/****************************************************************************
- * Name: qe_help
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static void qe_help(void)
-{
-  message("\nUsage: qe [OPTIONS]\n\n");
-  message("OPTIONS include:\n");
-  message("  [-p devpath] QE device path\n");
-  message("  [-n samples] Number of samples\n");
-  message("  [-t msec]    Delay between samples (msec)\n");
-  message("  [-r]         Reset the position to zero\n");
-  message("  [-h]         Shows this message and exits\n\n");
-}
-#endif
-
-/****************************************************************************
- * Name: arg_string
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static int arg_string(FAR char **arg, FAR char **value)
-{
-  FAR char *ptr = *arg;
-
-  if (ptr[2] == '\0')
-    {
-      *value = arg[1];
-      return 2;
-    }
-  else
-    {
-      *value = &ptr[2];
-      return 1;
-    }
-}
-#endif
-
-/****************************************************************************
- * Name: arg_decimal
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static int arg_decimal(FAR char **arg, FAR long *value)
-{
-  FAR char *string;
-  int ret;
-
-  ret = arg_string(arg, &string);
-  *value = strtol(string, NULL, 10);
-  return ret;
-}
-#endif
-
-/****************************************************************************
- * Name: parse_args
- ****************************************************************************/
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-static void parse_args(int argc, FAR char **argv)
-{
-  FAR char *ptr;
-  FAR char *str;
-  long value;
-  int index;
-  int nargs;
-
-  g_qeexample.reset  = false;
-  g_qeexample.nloops = 1;
-  g_qeexample.delay  = CONFIG_EXAMPLES_QENCODER_DELAY;
-
-  for (index = 1; index < argc; )
-    {
-      ptr = argv[index];
-      if (ptr[0] != '-')
-        {
-          message("Invalid options format: %s\n", ptr);
-          exit(0);
-        }
-
-      switch (ptr[1])
-        {
-          case 'n':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 0 || value > INT_MAX)
-              {
-                message("Sample count out of range: %ld\n", value);
-                exit(1);
-              }
-
-            g_qeexample.nloops = (unsigned int)value;
-            index += nargs;
-            break;
-
-          case 'p':
-            nargs = arg_string(&argv[index], &str);
-            qe_devpath(str);
-            index += nargs;
-            break;
-
-          case 't':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 0 || value > INT_MAX)
-              {
-                message("Sample delay out of range: %ld\n", value);
-                exit(1);
-              }
-
-            g_qeexample.delay = (unsigned int)value;
-            index += nargs;
-            break;
-
-          case 'r':
-            g_qeexample.reset = true;
-            index++;
-            break;
-
-          case 'h':
-            qe_help();
-            exit(EXIT_SUCCESS);
-        
-          default:
-            message("Unsupported option: %s\n", ptr);
-            qe_help();
-            exit(EXIT_FAILURE);
-        }
-    }
-}
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: qe_main
- ****************************************************************************/
-
-int qe_main(int argc, char *argv[])
-{
-  int32_t position;
-  int fd;
-  int exitval = EXIT_SUCCESS;
-  int ret;
-#if defined(CONFIG_NSH_BUILTIN_APPS) || defined(CONFIG_EXAMPLES_QENCODER_NSAMPLES)
-  int nloops;
-#endif
-
-  /* Check if we have initialized */
-
-  if (!g_qeexample.initialized)
-    {
-      /* Initialization of the encoder hardware is performed by logic external to
-       * this test.
-       */
-
-      message("qe_main: Initializing external encoder(s)\n");
-      ret = qe_devinit();
-      if (ret != OK)
-        {
-          message("qe_main: qe_devinit failed: %d\n", ret);
-          exitval = EXIT_FAILURE;
-          goto errout;
-        }
-
-      /* Set the default values */
-
-      qe_devpath(CONFIG_EXAMPLES_QENCODER_DEVPATH);
-      g_qeexample.initialized = true;
-    }
-
-  /* Parse command line arguments */
-
-#ifdef CONFIG_NSH_BUILTIN_APPS
-  parse_args(argc, argv);
-#endif
-
-  /* Open the encoder device for reading */
-
-  message("qe_main: Hardware initialized. Opening the encoder device: %s\n",
-          g_qeexample.devpath);
-
-  fd = open(g_qeexample.devpath, O_RDONLY);
-  if (fd < 0)
-    {
-      message("qe_main: open %s failed: %d\n", g_qeexample.devpath, errno);
-      exitval = EXIT_FAILURE;
-      goto errout_with_dev;
-    }
-
-  /* Reset the count if so requested */
-
-  if (g_qeexample.reset)
-    {
-      message("qe_main: Resetting the count...\n");
-      ret = ioctl(fd, QEIOC_RESET, 0);
-      if (ret < 0)
-        {
-          message("qe_main: ioctl(QEIOC_RESET) failed: %d\n", errno);
-          exitval = EXIT_FAILURE;
-          goto errout_with_dev;
-        }
-    }
-
-  /* Now loop the appropriate number of times, displaying the collected
-   * encoder samples.
-   */
-
-#if defined(CONFIG_NSH_BUILTIN_APPS)
-  message("qe_main: Number of samples: %d\n", g_qeexample.nloops);
-  for (nloops = 0; nloops < g_qeexample.nloops; nloops++)
-#elif defined(CONFIG_EXAMPLES_QENCODER_NSAMPLES)
-  message("qe_main: Number of samples: %d\n", CONFIG_EXAMPLES_QENCODER_NSAMPLES);
-  for (nloops = 0; nloops < CONFIG_EXAMPLES_QENCODER_NSAMPLES; nloops++)
-#else
-  for (;;)
-#endif
-    {
-      /* Flush any output before the loop entered or from the previous pass
-       * through the loop.
-       */
-
-      msgflush();
-
-      /* Get the positions data using the ioctl */
-
-      ret = ioctl(fd, QEIOC_POSITION, (unsigned long)((uintptr_t)&position));
-      if (ret < 0)
-        {
-          message("qe_main: ioctl(QEIOC_POSITION) failed: %d\n", errno);
-          exitval = EXIT_FAILURE;
-          goto errout_with_dev;
-        }
-
-      /* Print the sample data on successful return */
-
-      else
-        {
-          message("qe_main: %3d. %d\n", nloops+1, position);
-        }
-
-      /* Delay a little bit */
-
-#if defined(CONFIG_NSH_BUILTIN_APPS)
-      usleep(g_qeexample.delay * 1000);
-#else
-      usleep(CONFIG_EXAMPLES_QENCODER_DELAY * 1000);
-#endif
-    }
-
-errout_with_dev:
-  close(fd);
-
-errout:
-  message("Terminating!\n");
-  msgflush();
-  return exitval;
-}
diff --git a/apps/examples/romfs/Kconfig b/apps/examples/romfs/Kconfig
deleted file mode 100644
index 5a8c824a3..000000000
--- a/apps/examples/romfs/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_ROMFS
-	bool "ROMFS example"
-	default n
-	---help---
-		Enable the ROMFS example
-
-if EXAMPLES_ROMFS
-endif
diff --git a/apps/examples/romfs/Makefile b/apps/examples/romfs/Makefile
deleted file mode 100644
index 2b02952ed..000000000
--- a/apps/examples/romfs/Makefile
+++ /dev/null
@@ -1,115 +0,0 @@
-############################################################################
-# apps/examples/romfs/Makefile
-#
-#   Copyright (C) 2008, 2010-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# ROMFS File System Example
-
-ASRCS		=
-CSRCS		= romfs_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY:	checkgenromfs clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-checkgenromfs:
-	@genromfs -h 1>/dev/null 2>&1 || { \
-		echo "Host executable genromfs not available in PATH"; \
-		echo "You may need to download in from http://romfs.sourceforge.net/"; \
-		exit 1; \
-	}
-
-testdir : testdir.tar.gz
-	@tar zxf $< || { echo "tar zxf $< failed" ; exit 1 ; }
-
-testdir.img : checkgenromfs testdir
-	@genromfs -f $@ -d testdir -V "ROMFS_Test" || { echo "genromfs failed" ; exit 1 ; }
-
-romfs_testdir.h : testdir.img
-	@xxd -i $< >$@ || { echo "xxd of $< failed" ; exit 1 ; }
-
-.built: romfs_testdir.h $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-context:
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-# Register application
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-	$(call DELFILE, testdir.img)
-
--include Make.dep
-
diff --git a/apps/examples/romfs/romfs_main.c b/apps/examples/romfs/romfs_main.c
deleted file mode 100644
index 3437cb8ac..000000000
--- a/apps/examples/romfs/romfs_main.c
+++ /dev/null
@@ -1,498 +0,0 @@
-/****************************************************************************
- * examples/romfs/romfs_main.c
- *
- *   Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/* Mount the ROMFS image, Verifty that it contains the
- * following:
- *
- * testdir
- *  |---------- [drwxr-xr-x      4096]  adir
- *  |   |------ [-rw-r--r--        21]  anotherfile.txt
- *  |   |------ [drwxr-xr-x      4096]  subdir
- *  |   |   `-- [-rw-r--r--        21]  subdirfile.txt
- *  |   `------ [-rw-r--r--        25]  yafile.txt
- *  |---------- [-rw-r--r--        15]  afile.txt
- *  |---------- [-rw-r--r--        21]  hfile
- *  `---------- [lrwxrwxrwx        11]  ldir -> adir/subdir
- *
- * testdir/ldir is a soft-link and should not be detectable.
- * hfile is a hardlink to subdirfile and should be identical
- */
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <sys/mount.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <errno.h>
-
-#include <nuttx/ramdisk.h>
-
-#include "romfs_testdir.h"
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/* Configuration settings */
-
-#ifndef CONFIG_EXAMPLES_ROMFS_RAMDEVNO
-#  define CONFIG_EXAMPLES_ROMFS_RAMDEVNO 1
-#endif
-
-#ifndef CONFIG_EXAMPLES_ROMFS_SECTORSIZE
-#  define CONFIG_EXAMPLES_ROMFS_SECTORSIZE 64
-#endif
-
-#ifndef CONFIG_EXAMPLES_ROMFS_MOUNTPOINT
-#  define CONFIG_EXAMPLES_ROMFS_MOUNTPOINT "/usr/local/share"
-#endif
-
-#ifdef CONFIG_DISABLE_MOUNTPOINT
-#  error "Mountpoint support is disabled"
-#endif
-
-#if CONFIG_NFILE_DESCRIPTORS < 4
-#  error "Not enough file descriptors"
-#endif
-
-#ifndef CONFIG_FS_ROMFS
-#  error "ROMFS support not enabled"
-#endif
-
-#define NSECTORS(b)        (((b)+CONFIG_EXAMPLES_ROMFS_SECTORSIZE-1)/CONFIG_EXAMPLES_ROMFS_SECTORSIZE)
-#define STR_RAMDEVNO(m)    #m
-#define MKMOUNT_DEVNAME(m) "/dev/ram" STR_RAMDEVNO(m)
-#define MOUNT_DEVNAME      MKMOUNT_DEVNAME(CONFIG_EXAMPLES_ROMFS_RAMDEVNO)
-
-#define SCRATCHBUFFER_SIZE 1024
-
-/* Test directory stuff */
-
-#define WRITABLE_MODE      (S_IWOTH|S_IWGRP|S_IWUSR)
-#define READABLE_MODE      (S_IROTH|S_IRGRP|S_IRUSR)
-#define EXECUTABLE_MODE    (S_IXOTH|S_IXGRP|S_IXUSR)
-
-#define DIRECTORY_MODE     (S_IFDIR|READABLE_MODE|EXECUTABLE_MODE)
-#define FILE_MODE          (S_IFREG|READABLE_MODE)
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-struct node_s
-{
-  struct node_s *peer;      /* Next node in this directory */
-  bool           directory; /* True: directory */
-  bool           found;     /* True: found and verified */
-  const char    *name;      /* Node name */
-  mode_t         mode;      /* Expected permissions */
-  size_t         size;      /* Expected size */
-  union
-    {
-      const char    *filecontent; /* Context of text file */
-      struct node_s *child;       /* Subdirectory start */
-    } u;
-};
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static const char g_afilecontent[]       = "This is a file\n";
-static const char g_anotherfilecontent[] = "This is another file\n";
-static const char g_yafilecontent[]      = "This is yet another file\n";
-static const char g_subdirfilecontent[]  = "File in subdirectory\n";
-
-#define g_hfilecontent g_subdirfilecontent
-
-static struct node_s g_adir;
-static struct node_s g_afile;
-static struct node_s g_hfile;
-
-static struct node_s g_anotherfile;
-static struct node_s g_subdir;
-static struct node_s g_yafile;
-
-static struct node_s g_subdirfile;
-
-static int g_nerrors = 0;
-
-static char g_scratchbuffer[SCRATCHBUFFER_SIZE];
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name:
- ****************************************************************************/
-
-static void connectem(void)
-{
-  g_adir.peer                  = &g_afile;
-  g_adir.directory             = true;
-  g_adir.found                 = false;
-  g_adir.name                  = "adir";
-  g_adir.mode                  = DIRECTORY_MODE;
-  g_adir.size                  = 0;
-  g_adir.u.child               = &g_anotherfile;
-
-  g_afile.peer                 = &g_hfile;
-  g_afile.directory            = false;
-  g_afile.found                = false;
-  g_afile.name                 = "afile.txt";
-  g_afile.mode                 = FILE_MODE;
-  g_afile.size                 = strlen(g_afilecontent);
-  g_afile.u.filecontent        = g_afilecontent;
-
-  g_hfile.peer                 = NULL;
-  g_hfile.directory            = false; /* Actually a hard link */
-  g_hfile.found                = false;
-  g_hfile.name                 = "hfile";
-  g_hfile.mode                 = FILE_MODE;
-  g_hfile.size                 = strlen(g_hfilecontent);
-  g_hfile.u.filecontent        = g_hfilecontent;
-
-  g_anotherfile.peer           = &g_yafile;
-  g_anotherfile.directory      = false;
-  g_anotherfile.found          = false;
-  g_anotherfile.name           = "anotherfile.txt";
-  g_anotherfile.mode           = FILE_MODE;
-  g_anotherfile.size           = strlen(g_anotherfilecontent);
-  g_anotherfile.u.filecontent  = g_anotherfilecontent;
-
-  g_yafile.peer                = &g_subdir;
-  g_yafile.directory           = false;
-  g_yafile.found               = false;
-  g_yafile.name                = "yafile.txt";
-  g_yafile.mode                = FILE_MODE;
-  g_yafile.size                = strlen(g_yafilecontent);
-  g_yafile.u.filecontent       = g_yafilecontent;
-
-  g_subdir.peer                = NULL;
-  g_subdir.directory           = true;
-  g_subdir.found               = false;
-  g_subdir.name                = "subdir";
-  g_subdir.mode                = DIRECTORY_MODE;
-  g_subdir.size                = 0;
-  g_subdir.u.child             = &g_subdirfile;
-
-  g_subdirfile.peer            = NULL;
-  g_subdirfile.directory       = false;
-  g_subdirfile.found           = false;
-  g_subdirfile.name            = "subdirfile.txt";
-  g_subdirfile.mode            = FILE_MODE;
-  g_subdirfile.size            = strlen(g_subdirfilecontent);
-  g_subdirfile.u.filecontent   = g_subdirfilecontent;
-}
-
-/****************************************************************************
- * Name: findindirectory
- ****************************************************************************/
-
-static struct node_s *findindirectory(struct node_s *entry, const char *name)
-{
-  for (; entry; entry = entry->peer)
-    {
-      if (!entry->found && strcmp(entry->name, name) == 0)
-        {
-          entry->found = true;
-          return entry;
-        }
-    }
-  return NULL;
-}
-
-/****************************************************************************
- * Name: checkattributes
- ****************************************************************************/
-
-static void checkattributes(const char *path, mode_t mode, size_t size)
-{
-  struct stat buf;
-  int ret;
-
-  ret = stat(path, &buf);
-  if (ret != 0)
-    {
-      printf("  -- ERROR: Failed to stat %s: %d\n", path, errno);
-      g_nerrors++;
-      return;
-    }
-
-  if (mode != buf.st_mode)
-    {
-      printf("  -- ERROR: Expected mode %08x, got %08x\n", mode, buf.st_mode);
-      g_nerrors++;
-    }
-
-  if (size != buf.st_size)
-    {
-      printf("  -- ERROR: Expected size %d, got %d\n", mode, buf.st_size);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: checkfile
- ****************************************************************************/
-
-static void checkfile(const char *path, struct node_s *node)
-{
-  ssize_t nbytesread;
-  char *filedata;
-  int fd;
-
-  /* Open the file */
-
-  fd = open(path, O_RDONLY);
-  if (fd < 0)
-    {
-      printf("  -- ERROR: Failed to open %s: %d\n", path, errno);
-      g_nerrors++;
-      return;
-    }
-
-  /* Read and verify the file contents */
-
-  nbytesread = read(fd, g_scratchbuffer, SCRATCHBUFFER_SIZE);
-  if (nbytesread < 0)
-    {
-      printf("  -- ERROR: Failed to read from %s: %d\n", path, errno);
-      g_nerrors++;
-    }
-  else if (nbytesread != node->size)
-    {
-      printf("  -- ERROR: Read %d bytes, expected %d\n", nbytesread, node->size);
-      g_nerrors++;
-    }
-  else if (memcmp(g_scratchbuffer, node->u.filecontent, node->size) != 0)
-    {
-      g_scratchbuffer[nbytesread] = '\0';
-      printf("  -- ERROR: File content read does not match expectation:\n");
-      printf("  --        Read:     [%s]\n", g_scratchbuffer);
-      printf("  --        Expected: [%s]\n", node->u.filecontent);
-      g_nerrors++;
-    }
-
-  /* Memory map and verify the file contents */
-
-  filedata = (char*)mmap(NULL, node->size, PROT_READ, MAP_SHARED|MAP_FILE, fd, 0);
-  if (!filedata || filedata == (char*)MAP_FAILED)
-    {
-      printf("  -- ERROR: mmap of %s failed: %d\n", path, errno);
-      g_nerrors++;
-    }
-  else
-    {
-      if (memcmp(filedata, node->u.filecontent, node->size) != 0)
-        {
-          memcpy(g_scratchbuffer, filedata, node->size);
-          g_scratchbuffer[node->size] = '\0';
-          printf("  -- ERROR: Mapped file content read does not match expectation:\n");
-          printf("  --        Memory:   [%s]\n", filedata);
-          printf("  --        Expected: [%s]\n", node->u.filecontent);
-          g_nerrors++;
-        }
-      munmap(filedata, node->size);
-    }
-
-  /* Close the file */
-
-  if (close(fd) != OK)
-    {
-      printf("  -- ERROR: Failed to close %s: %d\n", path, errno);
-      g_nerrors++;
-    }
-}
-
-/****************************************************************************
- * Name: readdirectories
- ****************************************************************************/
-
-static void readdirectories(const char *path, struct node_s *entry)
-{
-  DIR *dirp;
-  struct node_s *node;
-  struct dirent *direntry;
-  char *fullpath;
-
-  printf("Traversing directory: %s\n", path);
-  dirp = opendir(path);
-  if (!dirp)
-    {
-      printf("  ERROR opendir(\"%s\") failed: %d\n", path, errno);
-      g_nerrors++;
-      return;
-    }
-
-  for (direntry = readdir(dirp); direntry; direntry = readdir(dirp))
-    {
-      if (strcmp(direntry->d_name, ".") == 0 || strcmp(direntry->d_name, "..") == 0)
-        {
-           printf("  Skipping %s\n", direntry->d_name);
-           continue;
-        }
-
-      node = findindirectory(entry, direntry->d_name);
-      if (!node)
-        {
-          printf("  ERROR: No node found for %s\n", direntry->d_name);
-          g_nerrors++;
-          continue;
-        }
-
-      /* Get the full path to the entry */
-
-      sprintf(g_scratchbuffer, "%s/%s", path, direntry->d_name);
-      fullpath = strdup(g_scratchbuffer);
-
-      if (DIRENT_ISDIRECTORY(direntry->d_type))
-        {
-          printf("  DIRECTORY: %s/\n", fullpath);
-          if (!node->directory)
-            {
-              printf("  -- ERROR: Expected type directory\n");
-              g_nerrors++;
-            }
-          else
-            {
-              checkattributes(fullpath, node->mode, 0);
-              readdirectories(fullpath, node->u.child);
-              printf("Continuing directory: %s\n", path);
-            }
-        }
-      else
-        {
-          printf("  FILE: %s/\n", fullpath);
-          if (node->directory)
-            {
-              printf("  -- ERROR: Expected type file\n");
-              g_nerrors++;
-            }
-          else
-            {
-              checkattributes(fullpath, node->mode, node->size);
-              checkfile(fullpath, node);
-            }
-        }
-      free(fullpath);
-    }
-
-  closedir(dirp);
-}
-
-/****************************************************************************
- * Name: checkdirectories
- ****************************************************************************/
-
-static void checkdirectories(struct node_s *entry)
-{
-  for (; entry; entry = entry->peer)
-    {
-      if (!entry->found )
-        {
-          printf("ERROR: %s never found\n", entry->name);
-          g_nerrors++;
-        }
-
-      if (entry->directory)
-        {
-          checkdirectories(entry->u.child);
-        }
-    }
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: romfs_main
- ****************************************************************************/
-
-int romfs_main(int argc, char *argv[])
-{
-   int  ret;
-
-  /* Create a RAM disk for the test */
-
-  ret = romdisk_register(CONFIG_EXAMPLES_ROMFS_RAMDEVNO, testdir_img, 
-                         NSECTORS(testdir_img_len), CONFIG_EXAMPLES_ROMFS_SECTORSIZE);
-  if (ret < 0)
-    {
-      printf("ERROR: Failed to create RAM disk\n");
-      return 1;
-    }
-
-  /* Mount the test file system */
-
-  printf("Mounting ROMFS filesystem at target=%s with source=%s\n",
-         CONFIG_EXAMPLES_ROMFS_MOUNTPOINT, MOUNT_DEVNAME);
-
-  ret = mount(MOUNT_DEVNAME, CONFIG_EXAMPLES_ROMFS_MOUNTPOINT, "romfs", MS_RDONLY, NULL);
-  if (ret < 0)
-    {
-      printf("ERROR: Mount failed: %d\n", errno);
-      return 1;
-    }
-
-  /* Perform the test */
-
-  connectem();
-  readdirectories(CONFIG_EXAMPLES_ROMFS_MOUNTPOINT, &g_adir);
-  checkdirectories(&g_adir);
-
-  if (g_nerrors)
-    {
-      printf("Finished with  %d errors\n", g_nerrors);
-      return g_nerrors;
-    }
-
-  printf("PASSED\n");
-  return 0;
-}
diff --git a/apps/examples/romfs/romfs_testdir.h b/apps/examples/romfs/romfs_testdir.h
deleted file mode 100644
index 53f93105c..000000000
--- a/apps/examples/romfs/romfs_testdir.h
+++ /dev/null
@@ -1,89 +0,0 @@
-unsigned char testdir_img[] = {
-  0x2d, 0x72, 0x6f, 0x6d, 0x31, 0x66, 0x73, 0x2d, 0x00, 0x00, 0x02, 0x60,
-  0x27, 0x43, 0x4a, 0x8a, 0x52, 0x4f, 0x4d, 0x46, 0x53, 0x5f, 0x54, 0x65,
-  0x73, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x49,
-  0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0xd1, 0xff, 0xff, 0x97,
-  0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x20,
-  0x00, 0x00, 0x00, 0x00, 0xd1, 0xd1, 0xff, 0x80, 0x2e, 0x2e, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x93, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0b,
-  0x93, 0x9b, 0x95, 0xf0, 0x6c, 0x64, 0x69, 0x72, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x61, 0x64, 0x69, 0x72,
-  0x2f, 0x73, 0x75, 0x62, 0x64, 0x69, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x02, 0x19, 0x00, 0x00, 0x00, 0xb0, 0x00, 0x00, 0x00, 0x00,
-  0x9e, 0x9b, 0x93, 0xc5, 0x61, 0x64, 0x69, 0x72, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf2,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x15, 0x58, 0x47, 0x43, 0xf1,
-  0x61, 0x6e, 0x6f, 0x74, 0x68, 0x65, 0x72, 0x66, 0x69, 0x6c, 0x65, 0x2e,
-  0x74, 0x78, 0x74, 0x00, 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20,
-  0x61, 0x6e, 0x6f, 0x74, 0x68, 0x65, 0x72, 0x20, 0x66, 0x69, 0x6c, 0x65,
-  0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x01, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19,
-  0xa1, 0xc5, 0x69, 0xd8, 0x79, 0x61, 0x66, 0x69, 0x6c, 0x65, 0x2e, 0x74,
-  0x78, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x68, 0x69, 0x73,
-  0x20, 0x69, 0x73, 0x20, 0x79, 0x65, 0x74, 0x20, 0x61, 0x6e, 0x6f, 0x74,
-  0x68, 0x65, 0x72, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x0a, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x50, 0x00, 0x00, 0x00, 0x90,
-  0x00, 0x00, 0x00, 0x00, 0xd1, 0xff, 0xfe, 0x20, 0x2e, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x01, 0x70, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00,
-  0xd1, 0xd1, 0xfe, 0x70, 0x2e, 0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x09,
-  0x00, 0x00, 0x01, 0x90, 0x00, 0x00, 0x00, 0x00, 0x23, 0x18, 0x9c, 0x03,
-  0x73, 0x75, 0x62, 0x64, 0x69, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xd2, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x15, 0x3e, 0x3f, 0x06, 0xd8, 0x73, 0x75, 0x62, 0x64,
-  0x69, 0x72, 0x66, 0x69, 0x6c, 0x65, 0x2e, 0x74, 0x78, 0x74, 0x00, 0x00,
-  0x46, 0x69, 0x6c, 0x65, 0x20, 0x69, 0x6e, 0x20, 0x73, 0x75, 0x62, 0x64,
-  0x69, 0x72, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x79, 0x0a, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xf0,
-  0x00, 0x00, 0x01, 0x70, 0x00, 0x00, 0x00, 0x00, 0xd1, 0xff, 0xfc, 0xa0,
-  0x2e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x90,
-  0x00, 0x00, 0x00, 0x00, 0xd1, 0xd1, 0xff, 0x70, 0x2e, 0x2e, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x02, 0x30, 0x00, 0x00, 0x01, 0x90, 0x00, 0x00, 0x00, 0x00,
-  0x32, 0x99, 0x92, 0xd4, 0x68, 0x66, 0x69, 0x6c, 0x65, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xc5, 0x6b, 0x22, 0x0b,
-  0x61, 0x66, 0x69, 0x6c, 0x65, 0x2e, 0x74, 0x78, 0x74, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20,
-  0x61, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-  0x00, 0x00, 0x00, 0x00
-};
-unsigned int testdir_img_len = 1024;
diff --git a/apps/examples/romfs/testdir.tar.gz b/apps/examples/romfs/testdir.tar.gz
deleted file mode 100644
index cd0e9c518..000000000
--- a/apps/examples/romfs/testdir.tar.gz
+++ /dev/null
diff --git a/apps/examples/romfs/testdir.txt b/apps/examples/romfs/testdir.txt
deleted file mode 100644
index e321d6ded..000000000
--- a/apps/examples/romfs/testdir.txt
+++ /dev/null
@@ -1,105 +0,0 @@
-VOLUME HEADER: Name=ROMFS_Test
-0000000: 2d72 6f6d 3166 732d 0000 0260 2743 4a8a  -rom1fs-...`'CJ.
-0000010: 524f 4d46 535f 5465 7374 0000 0000 0000  ROMFS_Test......
-
-FILE HEADER 1: Name=.
-0000020: 0000 0049 0000 0020 0000 0000 d1ff ff97  ...I... ........
-0000030: 2e00 0000 0000 0000 0000 0000 0000 0000  ................
-
-FILE HEADER 2: Name=..
-0000040: 0000 0060 0000 0020 0000 0000 d1d1 ff80  ...`... ........
-0000050: 2e2e 0000 0000 0000 0000 0000 0000 0000  ................
-
-FILE HEADER 3: Name=ldir
-0000060: 0000 0093 0000 0000 0000 000b 939b 95f0  ................
-0000070: 6c64 6972 0000 0000 0000 0000 0000 0000  ldir............
-
-  FILE CONTENT:
-  0000080: 6164 6972 2f73 7562 6469 7200 0000 0000  adir/subdir.....
-
-FILE HEADER 4: Name=adir
-0000090: 0000 0219 0000 00b0 0000 0000 9e9b 93c5  ................
-00000a0: 6164 6972 0000 0000 0000 0000 0000 0000  adir............
-
-  FILE HEADER 4.1: Name=anotherfile.txt
-  00000b0: 0000 00f2 0000 0000 0000 0015 5847 43f1  ............XGC.
-  00000c0: 616e 6f74 6865 7266 696c 652e 7478 7400  anotherfile.txt.
-
-    FILE CONTENT:
-    00000d0: 5468 6973 2069 7320 616e 6f74 6865 7220  This is another 
-    00000e0: 6669 6c65 0a00 0000 0000 0000 0000 0000  file............
-
-  FILE HEADER 4.2: Name=yafile.txt
-  00000f0: 0000 0132 0000 0000 0000 0019 a1c5 69d8  ...2..........i.
-  0000100: 7961 6669 6c65 2e74 7874 0000 0000 0000  yafile.txt......
-
-    FILE CONTENT:
-    0000110: 5468 6973 2069 7320 7965 7420 616e 6f74  This is yet anot
-    0000120: 6865 7220 6669 6c65 0a00 0000 0000 0000  her file........
-
-  FILE HEADER 4.3: Name=.
-  0000130: 0000 0150 0000 0090 0000 0000 d1ff fe20  ...P........... 
-  0000140: 2e00 0000 0000 0000 0000 0000 0000 0000  ................
-
-  FILE HEADER 4.4: Name=..
-  0000150: 0000 0170 0000 0020 0000 0000 d1d1 fe70  ...p... .......p
-  0000160: 2e2e 0000 0000 0000 0000 0000 0000 0000  ................
-
-  FILE HEADER 4.5: Name=subdir
-  0000170: 0000 0009 0000 0190 0000 0000 2318 9c03  ............#...
-  0000180: 7375 6264 6972 0000 0000 0000 0000 0000  subdir..........
-
-    FILE HEADER 4.5.1: Name=subdirfile.txt
-    0000190: 0000 01d2 0000 0000 0000 0015 3e3f 06d8  ............>?..
-    00001a0: 7375 6264 6972 6669 6c65 2e74 7874 0000  subdirfile.txt..
-
-      FILE CONTENT:
-      00001b0: 4669 6c65 2069 6e20 7375 6264 6972 6563  File in subdirec
-      00001c0: 746f 7279 0a00 0000 0000 0000 0000 0000  tory............
-
-    FILE HEADER 4.5.2: Name=.
-    00001d0: 0000 01f0 0000 0170 0000 0000 d1ff fca0  .......p........
-    00001e0: 2e00 0000 0000 0000 0000 0000 0000 0000  ................
-
-    FILE HEADER 4.5.3: Name=..
-    00001f0: 0000 0000 0000 0090 0000 0000 d1d1 ff70  ...............p
-    0000200: 2e2e 0000 0000 0000 0000 0000 0000 0000  ................
-
-FILE HEADER 5: Name=hfile
-0000210: 0000 0230 0000 0190 0000 0000 3299 92d4  ...0........2...
-0000220: 6866 696c 6500 0000 0000 0000 0000 0000  hfile...........
-
-FILE HEADER 6: Name=afile.txt
-0000230: 0000 0002 0000 0000 0000 000f c56b 220b  .............k".
-0000240: 6166 696c 652e 7478 7400 0000 0000 0000  afile.txt.......
-
-  FILE CONTENT:
-  0000250: 5468 6973 2069 7320 6120 6669 6c65 0a00  This is a file..
-
-PADDING
-0000260: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000270: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000280: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000290: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00002a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00002b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00002c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00002d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00002e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00002f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000300: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000310: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000320: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000330: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000340: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000350: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000360: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000370: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000380: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-0000390: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00003a0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00003b0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00003c0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00003d0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00003e0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
-00003f0: 0000 0000 0000 0000 0000 0000 0000 0000  ................
diff --git a/apps/examples/serloop/Kconfig b/apps/examples/serloop/Kconfig
deleted file mode 100644
index e52d35b3f..000000000
--- a/apps/examples/serloop/Kconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_SERLOOP
-	bool "Serial loopback example"
-	default n
-	---help---
-		Enable the serial loopback example
-
-if EXAMPLES_SERLOOP
-endif
diff --git a/apps/examples/serloop/Makefile b/apps/examples/serloop/Makefile
deleted file mode 100644
index 4a262884b..000000000
--- a/apps/examples/serloop/Makefile
+++ /dev/null
@@ -1,98 +0,0 @@
-############################################################################
-# apps/examples/serloop/Makefile
-#
-#   Copyright (C) 2008, 2010-2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# Mindlessly simple console loopack test
-
-ASRCS		=
-CSRCS		= serloop_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-context:
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-# Register application
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
-
diff --git a/apps/examples/serloop/serloop_main.c b/apps/examples/serloop/serloop_main.c
deleted file mode 100644
index af171fef3..000000000
--- a/apps/examples/serloop/serloop_main.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/****************************************************************************
- * examples/serloop/serloop_main.c
- *
- *   Copyright (C) 2008-2009, 2011 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <stdint.h>
-#include <stdio.h>
-#include <unistd.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * serloop_main
- ****************************************************************************/
-
-int serloop_main(int argc, char *argv[])
-{
-#ifdef CONFIG_EXAMPLES_SERLOOP_BUFIO
-  int ch;
-
-  for (;;)
-    {
-      ch = getchar();
-      if (ch < 1)
-        {
-          ch = '!';
-        }
-      else if ((ch < 0x20 || ch > 0x7e) && ch != '\n')
-        {
-          ch = '.';
-        }
-      putchar(ch);
-    }
-#else
-  uint8_t ch;
-  int ret;
-
-  for (;;)
-    {
-      ret = read(0, &ch, 1);
-      if (ret < 1)
-        {
-          ch = '!';
-        }
-      else if ((ch < 0x20 || ch > 0x7e) && ch != '\n')
-        {
-          ch = '.';
-        }
-      ret = write(1, &ch, 1);
-    }
-#endif
-  return 0;
-}
-
diff --git a/apps/examples/watchdog/Kconfig b/apps/examples/watchdog/Kconfig
deleted file mode 100644
index 18daf9327..000000000
--- a/apps/examples/watchdog/Kconfig
+++ /dev/null
@@ -1,40 +0,0 @@
-#
-# For a description of the syntax of this configuration file,
-# see misc/tools/kconfig-language.txt.
-#
-
-config EXAMPLES_WATCHDOG
-	bool "Watchdog Timer example"
-	default n
-	---help---
-		Enable the watchdog timer example
-
-if EXAMPLES_WATCHDOG
-
-config EXAMPLES_WATCHDOG_DEVPATH
-	string "Watchdog device path"
-	default "/dev/watchdog0"
-	---help---
-		The path to the watchdog device. Default: /dev/watchdog0
-
-config CONFIG_EXAMPLES_WATCHDOG_PINGTIME
-	int "Watchdog ping time"
-	default 5000
-	---help---
-		Time in milliseconds that the example will ping the watchdog before letting the
-		watchdog expire. Default: 5000 milliseconds.
-
-config CONFIG_EXAMPLES_WATCHDOG_PINGDELAY
-	int "Watchdog ping delay"
-	default 500
-	---help---
-		Time delay between pings in milliseconds. Default: 500 milliseconds.
-
-config EXAMPLES_WATCHDOG_TIMEOUT
-	int "Watchdog timeout"
-	default 2000
-	---help---
-		The watchdog timeout value in milliseconds before the watchdog timer
-		expires.  Default:  2000 milliseconds.
-
-endif
diff --git a/apps/examples/watchdog/Makefile b/apps/examples/watchdog/Makefile
deleted file mode 100644
index 076272fe3..000000000
--- a/apps/examples/watchdog/Makefile
+++ /dev/null
@@ -1,109 +0,0 @@
-############################################################################
-# apps/examples/watchdog/Makefile
-#
-#   Copyright (C) 2012 Gregory Nutt. All rights reserved.
-#   Author: Gregory Nutt <gnutt@nuttx.org>
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-#
-# 1. Redistributions of source code must retain the above copyright
-#    notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-#    notice, this list of conditions and the following disclaimer in
-#    the documentation and/or other materials provided with the
-#    distribution.
-# 3. Neither the name NuttX nor the names of its contributors may be
-#    used to endorse or promote products derived from this software
-#    without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
-# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
-# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-############################################################################
-
--include $(TOPDIR)/.config
--include $(TOPDIR)/Make.defs
-include $(APPDIR)/Make.defs
-
-# Watchdog Timer Example.
-
-ASRCS		=
-CSRCS		= watchdog_main.c
-
-AOBJS		= $(ASRCS:.S=$(OBJEXT))
-COBJS		= $(CSRCS:.c=$(OBJEXT))
-
-SRCS		= $(ASRCS) $(CSRCS)
-OBJS		= $(AOBJS) $(COBJS)
-
-ifeq ($(CONFIG_WINDOWS_NATIVE),y)
-  BIN		= ..\..\libapps$(LIBEXT)
-else
-ifeq ($(WINTOOL),y)
-  BIN		= ..\\..\\libapps$(LIBEXT)
-else
-  BIN		= ../../libapps$(LIBEXT)
-endif
-endif
-
-ROOTDEPPATH	= --dep-path .
-
-# Touchscreen built-in application info
-
-APPNAME		= wdog
-PRIORITY	= SCHED_PRIORITY_DEFAULT
-STACKSIZE	= 2048
-
-# Common build
-
-VPATH		= 
-
-all: .built
-.PHONY: context clean depend distclean
-
-$(AOBJS): %$(OBJEXT): %.S
-	$(call ASSEMBLE, $<, $@)
-
-$(COBJS): %$(OBJEXT): %.c
-	$(call COMPILE, $<, $@)
-
-.built: $(OBJS)
-	$(call ARCHIVE, $(BIN), $(OBJS))
-	@touch .built
-
-ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-$(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat: $(DEPCONFIG) Makefile
-	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
-
-context: $(BUILTIN_REGISTRY)$(DELIM)$(APPNAME)_main.bdat
-else
-context:
-endif
-
-.depend: Makefile $(SRCS)
-	@$(MKDEP) $(ROOTDEPPATH) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep
-	@touch $@
-
-depend: .depend
-
-clean:
-	$(call DELFILE, .built)
-	$(call CLEAN)
-
-distclean: clean
-	$(call DELFILE, Make.dep)
-	$(call DELFILE, .depend)
-
--include Make.dep
diff --git a/apps/examples/watchdog/watchdog.h b/apps/examples/watchdog/watchdog.h
deleted file mode 100644
index dd4daebb9..000000000
--- a/apps/examples/watchdog/watchdog.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/****************************************************************************
- * examples/examples/watchdog/watchdog.h
- *
- *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-#ifndef __APPS_EXAMPLES_WATCHDOG_WATCHDOG_H
-#define __APPS_EXAMPLES_WATCHDOG_WATCHDOG_H
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-/****************************************************************************
- * Definitions
- ****************************************************************************/
-/* Configuration ************************************************************/
-/* CONFIG_NSH_BUILTIN_APPS - Build the WATCHDOG test as an NSH built-in
- *   function. Default: Not built!  The example can only be used as an NSH
- *   built-in application
- * CONFIG_EXAMPLES_WATCHDOG_DEVPATH - The path to the Watchdog device.
- *   Default: /dev/watchdog0
- * CONFIG_EXAMPLES_WATCHDOG_PINGTIME - Time in milliseconds that the example
- *   will ping the watchdog before letting the watchdog expire. Default: 5000
- *   milliseconds
- * CONFIG_EXAMPLES_WATCHDOG_PINGDELAY - Time delay between pings in
- *   milliseconds. Default: 500 milliseconds.
- * CONFIG_EXAMPLES_WATCHDOG_TIMEOUT - The watchdog timeout value in
- *   milliseconds before the watchdog timer expires.  Default:  2000
- *   milliseconds.
- */
-
-#ifndef CONFIG_WATCHDOG
-#  error "WATCHDOG device support is not enabled (CONFIG_WATCHDOG)"
-#endif
-
-#ifndef CONFIG_NSH_BUILTIN_APPS
-#  warning "The WATCHDOG example only works as an NSH built-in application (CONFIG_NSH_BUILTIN_APPS)"
-#endif
-
-#ifndef CONFIG_EXAMPLES_WATCHDOG_DEVPATH
-#  define CONFIG_EXAMPLES_WATCHDOG_DEVPATH "/dev/watchdog0"
-#endif
-
-#ifndef CONFIG_EXAMPLES_WATCHDOG_PINGTIME
-#  define CONFIG_EXAMPLES_WATCHDOG_PINGTIME 5000
-#endif
-
-#ifndef CONFIG_EXAMPLES_WATCHDOG_PINGDELAY
-#  define CONFIG_EXAMPLES_WATCHDOG_PINGDELAY 500
-#endif
-
-#ifndef CONFIG_EXAMPLES_WATCHDOG_TIMEOUT
-#  define CONFIG_EXAMPLES_WATCHDOG_TIMEOUT 2000
-#endif
-
-/* Debug ********************************************************************/
-
-#ifdef CONFIG_CPP_HAVE_VARARGS
-#  ifdef CONFIG_DEBUG
-#    define message(...) syslog(__VA_ARGS__)
-#    define msgflush()
-#  else
-#    define message(...) printf(__VA_ARGS__)
-#    define msgflush() fflush(stdout)
-#  endif
-#else
-#  ifdef CONFIG_DEBUG
-#    define message syslog
-#    define msgflush()
-#  else
-#    define message printf
-#    define msgflush() fflush(stdout)
-#  endif
-#endif
-
-/****************************************************************************
- * Public Types
- ****************************************************************************/
-
-/****************************************************************************
- * Public Variables
- ****************************************************************************/
-
-/****************************************************************************
- * Public Function Prototypes
- ****************************************************************************/
-
-#endif /* __APPS_EXAMPLES_WATCHDOG_WATCHDOG_H */
diff --git a/apps/examples/watchdog/watchdog_main.c b/apps/examples/watchdog/watchdog_main.c
deleted file mode 100644
index 53099d21a..000000000
--- a/apps/examples/watchdog/watchdog_main.c
+++ /dev/null
@@ -1,357 +0,0 @@
-/****************************************************************************
- * examples/watchdog/watchdog_main.c
- *
- *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-
-#include <sys/types.h>
-#include <sys/ioctl.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/watchdog.h>
-
-#include "watchdog.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-struct wdog_example_s
-{
-  uint32_t pingtime;
-  uint32_t pingdelay;
-  uint32_t timeout;
-};
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-/****************************************************************************
- * Public Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: wdog_help
- ****************************************************************************/
-
-static void wdog_help(void)
-{
-  message("Usage: wdog [-h] [-d <pingtime] [-p <pingdelay>] [-t <timeout>]\n");
-  message("\nInitialize the watchdog to the <timeout>.  Start the watchdog\n");
-  message("timer.  Ping for the watchdog for <pingtime> seconds, then let it expire.\n");
-  message("\nOptions include:\n");
-  message("  [-d <pingtime>] = Selects the <delay> time in milliseconds.  Default: %d\n",
-         CONFIG_EXAMPLES_WATCHDOG_PINGTIME);
-  message("  [-p <pingdelay] = Time delay between pings in milliseconds.  Default: %d\n",
-         CONFIG_EXAMPLES_WATCHDOG_PINGDELAY);
-  message("  [-t timeout] = Time in milliseconds that the example will ping the watchdog\n");
-  message("    before letting the watchdog expire. Default: %d\n",
-          CONFIG_EXAMPLES_WATCHDOG_TIMEOUT);
-  message("  [-h] = Shows this message and exits\n");
-}
-
-/****************************************************************************
- * Name: arg_string
- ****************************************************************************/
-
-static int arg_string(FAR char **arg, FAR char **value)
-{
-  FAR char *ptr = *arg;
-
-  if (ptr[2] == '\0')
-    {
-      *value = arg[1];
-      return 2;
-    }
-  else
-    {
-      *value = &ptr[2];
-      return 1;
-    }
-}
-
-/****************************************************************************
- * Name: arg_decimal
- ****************************************************************************/
-
-static int arg_decimal(FAR char **arg, FAR long *value)
-{
-  FAR char *string;
-  int ret;
-
-  ret = arg_string(arg, &string);
-  *value = strtol(string, NULL, 10);
-  return ret;
-}
-
-/****************************************************************************
- * Name: parse_args
- ****************************************************************************/
-
-static void parse_args(FAR struct wdog_example_s *wdog, int argc, FAR char **argv)
-{
-  FAR char *ptr;
-  long value;
-  int index;
-  int nargs;
- 
-  wdog->pingtime  = CONFIG_EXAMPLES_WATCHDOG_PINGTIME;
-  wdog->pingdelay = CONFIG_EXAMPLES_WATCHDOG_PINGDELAY;
-  wdog->timeout   = CONFIG_EXAMPLES_WATCHDOG_TIMEOUT;
-
-  for (index = 1; index < argc; )
-    {
-      ptr = argv[index];
-      if (ptr[0] != '-')
-        {
-          message("Invalid options format: %s\n", ptr);
-          exit(EXIT_SUCCESS);
-        }
-
-      switch (ptr[1])
-        {
-          case 'd':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 1)
-              {
-                message("Ping delay out of range: %ld\n", value);
-                exit(EXIT_FAILURE);
-              }
-
-            wdog->pingdelay = (uint32_t)value;
-            index += nargs;
-            break;
-
-          case 'p':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 1 || value > 99)
-              {
-                message("Ping time out of range: %ld\n", value);
-                exit(EXIT_FAILURE);
-              }
-
-            wdog->pingtime = (uint8_t)value;
-            index += nargs;
-            break;
-
-          case 't':
-            nargs = arg_decimal(&argv[index], &value);
-            if (value < 1 || value > INT_MAX)
-              {
-                message("Duration out of range: %ld\n", value);
-                exit(EXIT_FAILURE);
-              }
-
-            wdog->timeout = (int)value;
-            index += nargs;
-            break;
-
-          case 'h':
-            wdog_help();
-            exit(EXIT_SUCCESS);
-        
-          default:
-            message("Unsupported option: %s\n", ptr);
-            wdog_help();
-            exit(EXIT_FAILURE);
-        }
-    }
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: wdog_main
- ****************************************************************************/
-
-int wdog_main(int argc, char *argv[])
-{
-  struct wdog_example_s wdog;
-#ifdef CONFIG_DEBUG_WATCHDOG
-  struct watchdog_status_s status;
-#endif
-  long elapsed;
-  int fd;
-  int ret;
-
-  /* Parse the command line */
-
-  parse_args(&wdog, argc, argv);
-
-  /* Initialization of the WATCHDOG hardware is performed by logic external to
-   * this test.
-   */
-
-  ret = up_wdginitialize();
-  if (ret != OK)
-    {
-      message("wdog_main: up_wdginitialize failed: %d\n", ret);
-      goto errout;
-    }
-
-  /* Open the watchdog device for reading */
-
-  fd = open(CONFIG_EXAMPLES_WATCHDOG_DEVPATH, O_RDONLY);
-  if (fd < 0)
-    {
-      message("wdog_main: open %s failed: %d\n",
-              CONFIG_EXAMPLES_WATCHDOG_DEVPATH, errno);
-      goto errout;
-    }
-
-  /* Set the watchdog timeout */
-
-  ret = ioctl(fd, WDIOC_SETTIMEOUT, (unsigned long)wdog.timeout);
-  if (ret < 0)
-    {
-      message("wdog_main: ioctl(WDIOC_SETTIMEOUT) failed: %d\n", errno);
-      goto errout_with_dev;
-    }
-
-  /* Then start the watchdog timer. */
-
-  ret = ioctl(fd, WDIOC_START, 0);
-  if (ret < 0)
-    {
-      message("wdog_main: ioctl(WDIOC_START) failed: %d\n", errno);
-      goto errout_with_dev;
-    }
-
-  /* Then ping */
-
-  for (elapsed = 0; elapsed < wdog.pingtime; elapsed += wdog.pingdelay)
-    {
-      /* Sleep for the requested amount of time */
-
-      usleep(wdog.pingdelay * 1000);
-
-      /* Show watchdog status.  Only if debug is enabled because this
-       * could interfere with the timer.
-       */
-
-#ifdef CONFIG_DEBUG_WATCHDOG
-     ret = ioctl(fd, WDIOC_GETSTATUS, (unsigned long)&status);
-     if (ret < 0)
-       {
-          message("wdog_main: ioctl(WDIOC_GETSTATUS) failed: %d\n", errno);
-          goto errout_with_dev;
-        }
-      message("wdog_main: flags=%08x timeout=%d timeleft=%d\n",
-              status.flags, status.timeout, status.timeleft);
-#endif
-
-      /* Then ping */
-
-     ret = ioctl(fd, WDIOC_KEEPALIVE, 0);
-     if (ret < 0)
-       {
-          message("wdog_main: ioctl(WDIOC_KEEPALIVE) failed: %d\n", errno);
-          goto errout_with_dev;
-        }
-
-      message("  ping elapsed=%ld\n", elapsed);
-      msgflush();
-    }
-
-  /* Then stop pinging */
-
-  for (; ; elapsed += wdog.pingdelay)
-    {
-      /* Sleep for the requested amount of time */
-
-      usleep(wdog.pingdelay * 1000);
-
-      /* Show watchdog status.  Only if debug is enabled because this
-       * could interfere with the timer.
-       */
-
-#ifdef CONFIG_DEBUG_WATCHDOG
-     ret = ioctl(fd, WDIOC_GETSTATUS, (unsigned long)&status);
-     if (ret < 0)
-       {
-          message("wdog_main: ioctl(WDIOC_GETSTATUS) failed: %d\n", errno);
-          goto errout_with_dev;
-        }
-      message("wdog_main: flags=%08x timeout=%d timeleft=%d\n",
-              status.flags, status.timeout, status.timeleft);
-#endif
-
-      message("  NO ping elapsed=%ld\n", elapsed);
-      msgflush();
-    }
-
-  /* We should not get here */
-
-  ret = ioctl(fd, WDIOC_STOP, 0);
-  if (ret < 0)
-    {
-      message("wdog_main: ioctl(WDIOC_STOP) failed: %d\n", errno);
-      goto errout_with_dev;
-    }
-
- close(fd);
- msgflush();
- return OK;
-
-errout_with_dev:
-  close(fd);
-errout:
-  msgflush();
-  return ERROR;
-}