Remove documentation from defconfig files so that they are more maintainable

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5068 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 2 insertions, 484 deletions

diff --git a/nuttx/configs/ea3131/pgnsh/defconfig b/nuttx/configs/ea3131/pgnsh/defconfig
index 3542d3ae3..3e6a31f5e 100644
--- a/nuttx/configs/ea3131/pgnsh/defconfig
+++ b/nuttx/configs/ea3131/pgnsh/defconfig
@@ -33,45 +33,7 @@
 #
 ############################################################################
 #
-# architecture selection
-#
-# CONFIG_ARCH - identifies the arch subdirectory and, hence, the
-#   processor architecture.
-# CONFIG_ARCH_family - for use in C code.  This identifies the
-#   particular chip family that the architecture is implemented
-#   in.
-# CONFIG_ARCH_architecture - for use in C code.  This identifies the
-#   specific architecture within the chip familyl.
-# CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
-# CONFIG_ARCH_CHIP_name - For use in C code
-# CONFIG_ARCH_BOARD - identifies the configs subdirectory and, hence,
-#   the board that supports the particular chip or SoC.
-# CONFIG_ARCH_BOARD_name - for use in C code
-# CONFIG_ENDIAN_BIG - define if big endian (default is little endian)
-# CONFIG_BOARD_LOOPSPERMSEC - for delay loops
-# CONFIG_DRAM_SIZE - For most ARM9 architectures, this describes the
-#   size of installed DRAM.  For the LPC31XX, it is used only to
-#   deterimine how to map the executable regions.  It is SDRAM size
-#   only if you are executing out of the external SDRAM; or it could
-#   be NOR FLASH size, external SRAM size, or internal SRAM size.
-# CONFIG_DRAM_START - The start address of DRAM (physical)
-# CONFIG_DRAM_VSTART - The startaddress of DRAM (virtual)
-# CONFIG_ARCH_IRQPRIO - The LPC31xx supports interrupt prioritization
-# CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
-#   stack. If defined, this symbol is the size of the interrupt
-#   stack in bytes.  If not defined, the user task stacks will be
-#   used during interrupt handling.
-# CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
-# CONFIG_ARCH_BOOTLOADER - Set if you are using a bootloader.
-# CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
-# CONFIG_ARCH_BUTTONS -  Enable support for buttons. Unique to board architecture.
-# CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
-#   cause a 100 second delay during boot-up.  This 100 second delay
-#   serves no purpose other than it allows you to calibrate
-#   CONFIG_BOARD_LOOPSPERMSEC.  You simply use a stop watch to measure
-#   the 100 second delay then adjust CONFIG_BOARD_LOOPSPERMSEC until
-#   the delay actually is 100 seconds.
-# CONFIG_ARCH_DMA - Support DMA initialization
+# Architecture Selection
 #
 CONFIG_ARCH="arm"
 CONFIG_ARCH_ARM=y
@@ -96,13 +58,6 @@ CONFIG_ARCH_DMA=n
 #
 # ARM-specific configuration
 #
-# CONFIG_ARCH_LOWVECTORS - define if vectors reside at address 0x0000:00000
-#   Undefine if vectors reside at address 0xffff:0000
-# CONFIG_ARCH_ROMPGTABLE - A pre-initialized, read-only page table is available.
-#   If defined, then board-specific logic must also define PGTABLE_BASE_PADDR,
-#   PGTABLE_BASE_VADDR, and all memory section mapping in a file named
-#   board_memorymap.h.
-#
 CONFIG_ARCH_LOWVECTORS=y
 CONFIG_ARCH_ROMPGTABLE=n
 
@@ -114,7 +69,7 @@ CONFIG_LPC31XX_DEVKITARM=n
 CONFIG_LPC31XX_BUILDROOT=y
 
 #
-#  Individual subsystems can be enabled:
+# Individual subsystems can be enabled:
 #
 CONFIG_LPC31XX_MCI=n
 CONFIG_LPC31XX_SPI=y
@@ -123,25 +78,6 @@ CONFIG_LPC31XX_UART=y
 #
 # Exernal memory available on the board (see also CONFIG_MM_REGIONS)
 #
-# CONFIG_LPC31XX_EXTSRAM0 - Select if external SRAM0 is present
-# CONFIG_LPC31XX_EXTSRAM0HEAP - Select if external SRAM0 should be
-#   configured as part of the NuttX heap.
-# CONFIG_LPC31XX_EXTSRAM0SIZE - Size (in bytes) of the installed
-#   external SRAM0 memory
-# CONFIG_LPC31XX_EXTSRAM1 - Select if external SRAM1 is present
-# CONFIG_LPC31XX_EXTSRAM1HEAP - Select if external SRAM1 should be
-#   configured as part of the NuttX heap.
-# CONFIG_LPC31XX_EXTSRAM1SIZE - Size (in bytes) of the installed
-#   external SRAM1 memory
-# CONFIG_LPC31XX_EXTSDRAM - Select if external SDRAM is present
-# CONFIG_LPC31XX_EXTSDRAMHEAP - Select if external SDRAM should be
-#   configured as part of the NuttX heap.
-# CONFIG_LPC31XX_EXTSDRAMSIZE - Size (in bytes) of the installed
-#   external SDRAM memory
-# CONFIG_LPC31XX_EXTNAND - Select if external NAND is present
-# CONFIG_LPC31XX_EXTSDRAMSIZE - Size (in bytes) of the installed
-#   external NAND memory
-#
 CONFIG_LPC31XX_EXTSRAM0=n
 CONFIG_LPC31XX_EXTSRAM0HEAP=n
 CONFIG_LPC31XX_EXTSRAM0SIZE=131072
@@ -157,17 +93,6 @@ CONFIG_LPC31XX_EXTNANDSIZE=67108864
 #
 # LPC31XX specific device driver settings
 #
-# CONFIG_UART_SERIAL_CONSOLE - selects the UART for the
-#   console and ttys0
-# CONFIG_UART_RXBUFSIZE - Characters are buffered as received.
-#   This specific the size of the receive buffer
-# CONFIG_UART_TXBUFSIZE - Characters are buffered before
-#   being sent.  This specific the size of the transmit buffer
-# CONFIG_UART_BAUD - The configure BAUD of the UART.  Must be
-# CONFIG_UART_BITS - The number of bits.  Must be either 7 or 8.
-# CONFIG_UART_PARTIY - 0=no parity, 1=odd parity, 2=even parity
-# CONFIG_UART_2STOP - Two stop bits
-#
 CONFIG_UART_SERIAL_CONSOLE=y
 CONFIG_UART_TXBUFSIZE=256
 CONFIG_UART_RXBUFSIZE=256
@@ -184,19 +109,6 @@ CONFIG_MP25P_SPIMODE=3
 #
 # General build options
 #
-# CONFIG_RRLOAD_BINARY - make the rrload binary format used with
-#   BSPs from www.ridgerun.com using the tools/mkimage.sh script
-# CONFIG_INTELHEX_BINARY - make the Intel HEX binary format
-#   used with many different loaders using the GNU objcopy program
-#   Should not be selected if you are not using the GNU toolchain.
-# CONFIG_MOTOROLA_SREC - make the Motorola S-Record binary format
-#   used with many different loaders using the GNU objcopy program
-#   Should not be selected if you are not using the GNU toolchain.
-# CONFIG_RAW_BINARY - make a raw binary format file used with many
-#   different loaders using the GNU objcopy program.  This option
-#   should not be selected if you are not using the GNU toolchain.
-# CONFIG_HAVE_LIBM - toolchain supports libm.a
-#
 CONFIG_RRLOAD_BINARY=n
 CONFIG_INTELHEX_BINARY=n
 CONFIG_MOTOROLA_SREC=n
@@ -214,96 +126,6 @@ CONFIG_PASS1_OBJECT=locked.r
 #
 # General OS setup
 #
-# CONFIG_APPS_DIR - Identifies the relative path to the directory
-#   that builds the application to link with NuttX.  Default: ../apps
-# CONFIG_DEBUG - enables built-in debug options
-# CONFIG_DEBUG_VERBOSE - enables verbose debug output
-# CONFIG_DEBUG_SYMBOLS - build without optimization and with
-#   debug symbols (needed for use with a debugger).
-# CONFIG_MM_REGIONS - If the architecture includes multiple
-#   regions of memory to allocate from, this specifies the
-#   number of memory regions that the memory manager must
-#   handle and enables the API mm_addregion(start, end);
-# CONFIG_ARCH_LOWPUTC - architecture supports low-level, boot
-#   time console output
-# CONFIG_MSEC_PER_TICK - The default system timer is 100Hz
-#   or MSEC_PER_TICK=10.  This setting may be defined to
-#   inform NuttX that the processor hardware is providing
-#   system timer interrupts at some interrupt interval other
-#   than 10 msec.
-# CONFIG_RR_INTERVAL - The round robin timeslice will be set
-#   this number of milliseconds;  Round robin scheduling can
-#   be disabled by setting this value to zero.
-# CONFIG_SCHED_INSTRUMENTATION - enables instrumentation in 
-#   scheduler to monitor system performance
-# CONFIG_TASK_NAME_SIZE - Spcifies that maximum size of a
-#   task name to save in the TCB.  Useful if scheduler
-#   instrumentation is selected.  Set to zero to disable.
-# CONFIG_START_YEAR, CONFIG_START_MONTH, CONFIG_START_DAY -
-#   Used to initialize the internal time logic.
-# CONFIG_GREGORIAN_TIME - Enables Gregorian time conversions.
-#   You would only need this if you are concerned about accurate
-#   time conversions in the past or in the distant future.
-# CONFIG_JULIAN_TIME - Enables Julian time conversions. You
-#   would only need this if you are concerned about accurate
-#   time conversion in the distand past.  You must also define
-#   CONFIG_GREGORIAN_TIME in order to use Julian time.
-# CONFIG_DEV_CONSOLE - Set if architecture-specific logic
-#   provides /dev/console.  Enables stdout, stderr, stdin.
-# CONFIG_DEV_LOWCONSOLE - Use the simple, low-level serial console
-#   driver (minimul support)
-# CONFIG_MUTEX_TYPES: Set to enable support for recursive and
-#   errorcheck mutexes. Enables pthread_mutexattr_settype().
-# CONFIG_PRIORITY_INHERITANCE : Set to enable support for priority
-#   inheritance on mutexes and semaphores. 
-# CONFIG_SEM_PREALLOCHOLDERS: This setting is only used if priority
-#   inheritance is enabled.  It defines the maximum number of
-#   different threads (minus one) that can take counts on a
-#   semaphore with priority inheritance support.  This may be 
-#   set to zero if priority inheritance is disabled OR if you
-#   are only using semaphores as mutexes (only one holder) OR
-#   if no more than two threads participate using a counting
-#   semaphore.
-# CONFIG_SEM_NNESTPRIO.  If priority inheritance is enabled,
-#   then this setting is the maximum number of higher priority
-#   threads (minus 1) than can be waiting for another thread
-#   to release a count on a semaphore.  This value may be set
-#   to zero if no more than one thread is expected to wait for
-#   a semaphore.
-# CONFIG_FDCLONE_DISABLE. Disable cloning of all file descriptors
-#   by task_create() when a new task is started.  If set, all
-#   files/drivers will appear to be closed in the new task.
-# CONFIG_FDCLONE_STDIO. Disable cloning of all but the first
-#   three file descriptors (stdin, stdout, stderr) by task_create()
-#   when a new task is started. If set, all files/drivers will
-#   appear to be closed in the new task except for stdin, stdout,
-#   and stderr.
-# CONFIG_SDCLONE_DISABLE. Disable cloning of all socket
-#   desciptors by task_create() when a new task is started. If
-#   set, all sockets will appear to be closed in the new task.
-# CONFIG_NXFLAT. Enable support for the NXFLAT binary format.
-#  This format will support execution of NuttX binaries located
-#  in a ROMFS filesystem (see examples/nxflat).
-# CONFIG_SCHED_WORKQUEUE.  Create a dedicated "worker" thread to
-#  handle delayed processing from interrupt handlers.  This feature
-#  is required for some drivers but, if there are not complaints,
-#  can be safely disabled.  The worker thread also performs
-#  garbage collection -- completing any delayed memory deallocations
-#  from interrupt handlers.  If the worker thread is disabled,
-#  then that clean will be performed by the IDLE thread instead
-#  (which runs at the lowest of priority and may not be appropriate
-#  if memory reclamation is of high priority).  If CONFIG_SCHED_WORKQUEUE
-#  is enabled, then the following options can also be used:
-# CONFIG_SCHED_WORKPRIORITY - The execution priority of the worker
-#  thread.  Default: 50
-# CONFIG_SCHED_WORKPERIOD - How often the worker thread checks for
-#  work in units of microseconds.  Default: 50000 (50 MS).
-# CONFIG_SCHED_WORKSTACKSIZE - The stack size allocated for the worker
-#  thread.  Default: CONFIG_IDLETHREAD_STACKSIZE.
-# CONFIG_SIG_SIGWORK - The signal number that will be used to wake-up
-#  the worker thread.  Default: 4
-#
-#CONFIG_APPS_DIR=
 CONFIG_DEBUG=n
 CONFIG_DEBUG_VERBOSE=n
 CONFIG_DEBUG_SYMBOLS=n
@@ -338,114 +160,6 @@ CONFIG_SIG_SIGWORK=4
 #
 # OS setup related to on-demand paging:
 #
-# CONFIG_PAGING - If set =y in your configation file, this setting will
-#   enable the on-demand paging feature as described in
-#   http://www.nuttx.org/NuttXDemandPaging.html.
-#
-# If CONFIG_PAGING is selected, then the following also apply:
-#
-# CONFIG_PAGING_PAGESIZE - The size of one managed page.  This must
-#   be a value supported by the processor's memory management unit.
-# CONFIG_PAGING_NLOCKED - This is the number of locked pages in the
-#   memory map.  The locked address region will then be from
-#   CONFIG_DRAM_VSTART through (CONFIG_DRAM_VSTART +
-#   CONFIG_PAGING_PAGESIZE*CONFIG_PAGING_NLOCKED)
-# CONFIG_PAGING_LOCKED_PBASE and CONFIG_PAGING_LOCKED_VBASE - These
-#   may be defined to determine the base address of the locked page
-#   regions.  If neither are defined, the logic will be set the bases
-#   to CONFIG_DRAM_START and CONFIG_DRAM_VSTART (i.e., it assumes
-#   that the base address of the locked region is at the beginning
-#   of RAM).
-#   NOTE:  In some architectures, it may be necessary to take some
-#   memory from the beginning of this region for vectors or for a
-#   page table. In such cases, CONFIG_PAGING_LOCKED_P/VBASE should
-#   take that into consideration to prevent overlapping the locked
-#   memory region and the system data at the beginning of SRAM.
-# CONFIG_PAGING_NPPAGED - This is the number of physical pages
-#   available to support the paged text region.  This paged region
-#   begins at (CONFIG_PAGING_LOCKED_PBASE + CONFIG_PAGING_PAGESIZE*CONFIG_PAGING_NPPAGED)
-#   and continues until (CONFIG_PAGING_LOCKED_PBASE + CONFIG_PAGING_PAGESIZE*(CONFIG_PAGING_NLOCKED +
-#   CONFIG_PAGING_NPPAGED)
-# CONFIG_PAGING_NVPAGED - This actual size of the paged text region
-#   (in pages).  This is also the number of virtual pages required to
-#   support the entire paged region. The on-demand paging feature is
-#   intended to support only the case where the virtual paged text
-#   area is much larger the available physical pages.  Otherwise, why
-#   would you enable on-demand paging?
-# CONFIG_PAGING_NDATA - This is the number of data pages in the memory
-#   map.  The data region will extend to the end of RAM unless overridden
-#   by a setting in the configuration file.
-#   NOTE:  In some architectures, it may be necessary to take some memory
-#   from the end of RAM for page tables or other system usage.  The
-#   configuration settings and linker directives must be cognizant of that:
-#   CONFIG_PAGING_NDATA should be defined to prevent the data region from
-#   extending all the way to the end of memory. 
-# CONFIG_PAGING_DEFPRIO - The default, minimum priority of the page fill
-#   worker thread.  The priority of the page fill work thread will be boosted
-#   boosted dynmically so that it matches the priority of the task on behalf
-#   of which it peforms the fill.  This defines the minimum priority that
-#   will be used. Default: 50.
-# CONFIG_PAGING_STACKSIZE - Defines the size of the allocated stack
-#   for the page fill worker thread. Default: 1024.
-# CONFIG_PAGING_BLOCKINGFILL - The architecture specific up_fillpage()
-#   function may be blocking or non-blocking.  If defined, this setting
-#   indicates that the up_fillpage() implementation will block until the
-#   transfer is completed. Default:  Undefined (non-blocking).
-# CONFIG_PAGING_WORKPERIOD - The page fill worker thread will wake periodically
-#   even if there is no mapping to do.  This selection controls that wake-up
-#   period (in microseconds).  This wake-up a failsafe that will handle any 
-#   cases where a single is lost (that would really be a bug and shouldn't
-#   happen!) and also supports timeouts for case of non-blocking, asynchronous
-#   fills (see CONFIG_PAGING_TIMEOUT_TICKS).
-# CONFIG_PAGING_TIMEOUT_TICKS - If defined, the implementation will monitor
-#   the (asynchronous) page fill logic.  If the fill takes longer than this
-#   number if microseconds, then a fatal error will be declared.
-#   Default: No timeouts monitored.
-#
-# Some architecture-specific settings.  Defaults are architecture specific.
-# If you don't know what you are doing, it is best to leave these undefined
-# and try the system defaults:
-#
-# CONFIG_PAGING_VECPPAGE - This the physical address of the page in
-#   memory to be mapped to the vector address.
-# CONFIG_PAGING_VECL2PADDR - This is the physical address of the L2
-#   page table entry to use for the vector mapping.
-# CONFIG_PAGING_VECL2VADDR - This is the virtual address of the L2
-#   page table entry to use for the vector mapping.
-# CONFIG_PAGING_BINPATH - If CONFIG_PAGING_BINPATH is defined, then it
-#   is the full path to a file on a mounted file system that contains
-#   a binary image of the NuttX executable.  Pages will be filled by
-#   reading from offsets into this file that correspond to virtual
-#   fault addresses.
-# CONFIG_PAGING_MOUNTPT - If CONFIG_PAGING_BINPATH is defined, additional
-#   options may be provided to control the initialization of underlying
-#   devices. CONFIG_PAGING_MOUNTPT identifies the mountpoint to be used
-#   if a device is mounted.
-# CONFIG_PAGING_MINOR - Some mount operations require a "minor" number
-#   to identify the specific device instance. Default: 0
-# CONFIG_PAGING_SDSLOT - If CONFIG_PAGING_BINPATH is defined, additional
-#   options may be provided to control the initialization of underlying
-#   devices. CONFIG_PAGING_SDSLOT identifies the slot number of the SD
-#   device to initialize. This must be undefined if SD is not being used.
-#   This should be defined to be zero for the typical device that has
-#   only a single slot (See CONFIG_MMCSD_NSLOTS). If defined, 
-#   CONFIG_PAGING_SDSLOT will instruct certain board-specific logic to
-#   initialize the media in this SD slot.
-# CONFIG_PAGING_M25PX - Use the m25px.c FLASH driver.  If this is selected,
-#   then the MTD interface to the M25Px device will be used to support
-#   paging.
-# CONFIG_PAGING_AT45DB - Use the at45db.c FLASH driver.  If this is selected,
-#   then the MTD interface to the Atmel AT45DB device will be used to support
-#   paging.
-# CONFIG_PAGING_BINOFFSET - If CONFIG_PAGING_M25PX or CONFIG_PAGING_AT45DB
-#   is defined then CONFIG_PAGING_BINOFFSET will be used to specify the offset
-#   in bytes into the FLASH device where the NuttX binary image is located.
-#   Default: 0
-# CONFIG_PAGING_SPIPORT - If CONFIG_PAGING_M25PX or CONFIG_PAGING_AT45DB
-#   is defined and the device has multiple SPI busses (ports), then this
-#   configuration should be set to indicate which SPI port the device is
-#   connected. Default: 0
-#
 CONFIG_PAGING=y
 CONFIG_PAGING_PAGESIZE=1024
 CONFIG_PAGING_NLOCKED=48
@@ -498,9 +212,6 @@ CONFIG_DISABLE_POLL=y
 #
 # Misc libc settings
 #
-# CONFIG_NOPRINTF_FIELDWIDTH - sprintf-related logic is a
-#   little smaller if we do not support fieldwidthes
-#
 CONFIG_NOPRINTF_FIELDWIDTH=n
 
 #
@@ -523,38 +234,6 @@ CONFIG_ARCH_BZERO=n
 #
 # Sizes of configurable things (0 disables)
 #
-# CONFIG_MAX_TASKS - The maximum number of simultaneously
-#   active tasks.  This value must be a power of two.
-# CONFIG_MAX_TASK_ARGS - This controls the maximum number of
-#   of parameters that a task may receive (i.e., maxmum value
-#   of 'argc')
-# CONFIG_NPTHREAD_KEYS - The number of items of thread-
-#   specific data that can be retained
-# CONFIG_NFILE_DESCRIPTORS - The maximum number of file
-#   descriptors (one for each open)
-# CONFIG_NFILE_STREAMS - The maximum number of streams that
-#   can be fopen'ed
-# CONFIG_NAME_MAX - The maximum size of a file name.
-# CONFIG_STDIO_BUFFER_SIZE - Size of the buffer to allocate
-#   on fopen. (Only if CONFIG_NFILE_STREAMS > 0)
-# CONFIG_NUNGET_CHARS - Number of characters that can be
-#   buffered by ungetc() (Only if CONFIG_NFILE_STREAMS > 0)
-# CONFIG_PREALLOC_MQ_MSGS - The number of pre-allocated message
-#   structures.  The system manages a pool of preallocated
-#   message structures to minimize dynamic allocations
-# CONFIG_MQ_MAXMSGSIZE - Message structures are allocated with
-#   a fixed payload size given by this settin (does not include
-#   other message structure overhead.
-# CONFIG_MAX_WDOGPARMS - Maximum number of parameters that
-#   can be passed to a watchdog handler
-# CONFIG_PREALLOC_WDOGS - The number of pre-allocated watchdog
-#   structures.  The system manages a pool of preallocated
-#   watchdog structures to minimize dynamic allocations
-# CONFIG_PREALLOC_TIMERS - The number of pre-allocated POSIX
-#   timer structures.  The system manages a pool of preallocated
-#   timer structures to minimize dynamic allocations.  Set to
-#   zero for all dynamic allocations.
-#
 CONFIG_MAX_TASKS=16
 CONFIG_MAX_TASK_ARGS=4
 CONFIG_NPTHREAD_KEYS=4
@@ -572,62 +251,24 @@ CONFIG_PREALLOC_TIMERS=4
 #
 # Filesystem configuration
 #
-# CONFIG_FS_FAT - Enable FAT filesystem support
-# CONFIG_FAT_SECTORSIZE - Max supported sector size
-# CONFIG_FS_ROMFS - Enable ROMFS filesystem support
 CONFIG_FS_FAT=y
 CONFIG_FS_ROMFS=n
 
 #
 # Block driver buffering
 #
-# CONFIG_FS_READAHEAD
-#   Enable read-ahead buffering
-# CONFIG_FS_WRITEBUFFER
-#   Enable write buffering
-#
 CONFIG_FS_READAHEAD=n
 CONFIG_FS_WRITEBUFFER=n
 
 #
 # SDIO-based MMC/SD driver
 #
-# CONFIG_SDIO_DMA
-#   SDIO driver supports DMA
-# CONFIG_MMCSD_MMCSUPPORT
-#   Enable support for MMC cards
-# CONFIG_MMCSD_HAVECARDDETECT
-#   SDIO driver card detection is 100% accurate
-#
 CONFIG_SDIO_DMA=n
 CONFIG_MMCSD_MMCSUPPORT=n
 CONFIG_MMCSD_HAVECARDDETECT=n
 
 #
 # TCP/IP and UDP support via uIP
-# CONFIG_NET - Enable or disable all network features
-# CONFIG_NET_IPv6 - Build in support for IPv6
-# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
-# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
-# CONFIG_NET_BUFSIZE - uIP buffer size
-# CONFIG_NET_TCP - TCP support on or off
-# CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks)
-# CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers
-# CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero)
-# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until
-#   accept() is called. The size of the backlog is selected when listen() is called.
-# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
-# CONFIG_NET_UDP - UDP support on or off
-# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
-# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
-# CONFIG_NET_ICMP - ICMP ping response support on or off
-# CONFIG_NET_ICMP_PING - ICMP ping request support on or off
-# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
-# CONFIG_NET_STATISTICS - uIP statistics on or off
-# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
-# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
-# CONFIG_NET_BROADCAST - Broadcast support
-# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
 #
 CONFIG_NET=n
 CONFIG_NET_IPv6=n
@@ -651,8 +292,6 @@ CONFIG_NET_BROADCAST=n
 
 #
 # UIP Network Utilities
-# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
-# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
 #
 CONFIG_NET_DHCP_LIGHT=n
 CONFIG_NET_RESOLV_ENTRIES=4
@@ -660,22 +299,6 @@ CONFIG_NET_RESOLV_ENTRIES=4
 #
 # USB Device Configuration
 #
-# CONFIG_USBDEV
-#   Enables USB device support
-# CONFIG_USBDEV_ISOCHRONOUS
-#   Build in extra support for isochronous endpoints
-# CONFIG_USBDEV_DUALSPEED
-#   Hardware handles high and full speed operation (USB 2.0)
-# CONFIG_USBDEV_SELFPOWERED
-#   Will cause USB features to indicate that the device is
-#   self-powered
-# CONFIG_USBDEV_MAXPOWER
-#   Maximum power consumption in mA
-# CONFIG_USBDEV_TRACE
-#   Enables USB tracing for debug
-# CONFIG_USBDEV_TRACE_NRECORDS
-#   Number of trace entries to remember
-#
 CONFIG_USBDEV=n
 CONFIG_USBDEV_ISOCHRONOUS=n
 CONFIG_USBDEV_DUALSPEED=n
@@ -688,13 +311,6 @@ CONFIG_USBDEV_TRACE_NRECORDS=128
 #
 # LPC31XX USB Configuration
 #
-# CONFIG_LPC31XX_GIO_USBATTACH
-#   GIO that detects USB attach/detach events
-# CONFIG_LPC31XX_GIO_USBDPPULLUP
-#   GIO 
-# CONFIG_DMA320_USBDEV_DMA
-#   Enable LPC31XX-specific DMA support
-#
 CONFIG_LPC31XX_GIO_USBATTACH=6
 CONFIG_LPC31XX_GIO_USBDPPULLUP=17
 CONFIG_LPC31XX_VENDORID=0xd320
@@ -704,26 +320,6 @@ CONFIG_LPC31XX_USBDEV_DMA=n
 #
 # USB Serial Device Configuration
 #
-# CONFIG_PL2303
-#   Enable compilation of the USB serial driver
-# CONFIG_PL2303_EPINTIN
-#   The logical 7-bit address of a hardware endpoint that supports
-#   interrupt IN operation
-# CONFIG_PL2303_EPBULKOUT
-#   The logical 7-bit address of a hardware endpoint that supports
-#   bulk OUT operation
-# CONFIG_PL2303_EPBULKIN
-#   The logical 7-bit address of a hardware endpoint that supports
-#   bulk IN operation
-# CONFIG_PL2303_NWRREQS and CONFIG_PL2303_NRDREQS
-#   The number of write/read requests that can be in flight
-# CONFIG_PL2303_VENDORID and CONFIG_PL2303_VENDORSTR
-#   The vendor ID code/string
-# CONFIG_PL2303_PRODUCTID and CONFIG_PL2303_PRODUCTSTR
-#   The product ID code/string
-# CONFIG_PL2303_RXBUFSIZE and CONFIG_PL2303_TXBUFSIZE
-#   Size of the serial receive/transmit buffers
-#
 CONFIG_PL2303=n
 CONFIG_PL2303_EPINTIN=3
 CONFIG_PL2303_EPBULKOUT=2
@@ -740,26 +336,6 @@ CONFIG_PL2303_TXBUFSIZE=512
 #
 # USB Storage Device Configuration
 #
-# CONFIG_USBMSC
-#   Enable compilation of the USB storage driver
-# CONFIG_USBMSC_EP0MAXPACKET
-#   Max packet size for endpoint 0
-# CONFIG_USBMSC_EPBULKOUT and CONFIG_USBMSC_EPBULKIN
-#   The logical 7-bit address of a hardware endpoints that support
-#   bulk OUT and IN operations
-# CONFIG_USBMSC_NWRREQS and CONFIG_USBMSC_NRDREQS
-#   The number of write/read requests that can be in flight
-# CONFIG_USBMSC_BULKINREQLEN and CONFIG_USBMSC_BULKOUTREQLEN
-#   The size of the buffer in each write/read request.  This
-#   value needs to be at least as large as the endpoint
-#   maxpacket and ideally as large as a block device sector.
-# CONFIG_USBMSC_VENDORID and CONFIG_USBMSC_VENDORSTR
-#   The vendor ID code/string
-# CONFIG_USBMSC_PRODUCTID and CONFIG_USBMSC_PRODUCTSTR
-#   The product ID code/string
-# CONFIG_USBMSC_REMOVABLE
-#   Select if the media is removable
-#
 CONFIG_USBMSC=n
 CONFIG_USBMSC_EP0MAXPACKET=64
 CONFIG_USBMSC_EPBULKOUT=2
@@ -804,36 +380,6 @@ CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
 #
 # Settings for apps/nshlib
 #
-# CONFIG_NSH_FILEIOSIZE - Size of a static I/O buffer
-# CONFIG_NSH_STRERROR - Use strerror(errno)
-# CONFIG_NSH_LINELEN - Maximum length of one command line
-# CONFIG_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
-# CONFIG_NSH_DISABLESCRIPT - Disable scripting support
-# CONFIG_NSH_DISABLEBG - Disable background commands
-# CONFIG_NSH_ROMFSETC - Use startup script in /etc
-# CONFIG_NSH_CONSOLE - Use serial console front end
-# CONFIG_NSH_TELNET - Use telnetd console front end
-# CONFIG_NSH_ARCHINIT - Platform provides architecture
-#   specific initialization (nsh_archinitialize()).
-#
-# If CONFIG_NSH_TELNET is selected:
-# CONFIG_NSH_IOBUFFER_SIZE -- Telnetd I/O buffer size
-# CONFIG_NSH_DHCPC - Obtain address using DHCP
-# CONFIG_NSH_IPADDR - Provides static IP address
-# CONFIG_NSH_DRIPADDR - Provides static router IP address
-# CONFIG_NSH_NETMASK - Provides static network mask
-# CONFIG_NSH_NOMAC - Use a bogus MAC address
-#
-# If CONFIG_NSH_ROMFSETC is selected:
-# CONFIG_NSH_ROMFSMOUNTPT - ROMFS mountpoint
-# CONFIG_NSH_INITSCRIPT - Relative path to init script
-# CONFIG_NSH_ROMFSDEVNO - ROMFS RAM device minor
-# CONFIG_NSH_ROMFSSECTSIZE - ROMF sector size
-# CONFIG_NSH_FATDEVNO - FAT FS RAM device minor
-# CONFIG_NSH_FATSECTSIZE - FAT FS sector size
-# CONFIG_NSH_FATNSECTORS - FAT FS number of sectors
-# CONFIG_NSH_FATMOUNTPT - FAT FS mountpoint
-#
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_STRERROR=n
 CONFIG_NSH_LINELEN=64
@@ -869,15 +415,6 @@ CONFIG_NSH_MMCSDMINOR=0
 #
 # Settings for examples/usbserial
 #
-# 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.
-#
 CONFIG_EXAMPLES_USBSERIAL_INONLY=n
 CONFIG_EXAMPLES_USBSERIAL_OUTONLY=n
 CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL=n
@@ -892,25 +429,6 @@ CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=n
 #
 # Stack and heap information
 #
-# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
-#   operation from FLASH but must copy initialized .data sections to RAM.
-# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
-#   but copy themselves entirely into RAM for better performance.
-# CONFIG_CUSTOM_STACK - The up_ implementation will handle
-#   all stack operations outside of the nuttx model.
-# CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
-# CONFIG_IDLETHREAD_STACKSIZE - The size of the initial stack.
-#  This is the thread that (1) performs the inital boot of the system up
-#  to the point where user_start() is spawned, and (2) there after is the
-#  IDLE thread that executes only when there is no other thread ready to
-#  run.
-# CONFIG_USERMAIN_STACKSIZE - The size of the stack to allocate
-#  for the main user thread that begins at the user_start() entry point.
-# CONFIG_PTHREAD_STACK_MIN - Minimum pthread stack size
-# CONFIG_PTHREAD_STACK_DEFAULT - Default pthread stack size
-# CONFIG_HEAP_BASE - The beginning of the heap
-# CONFIG_HEAP_SIZE - The size of the heap
-#
 CONFIG_BOOT_RUNFROMFLASH=n
 CONFIG_BOOT_COPYTORAM=n
 CONFIG_CUSTOM_STACK=n