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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2013-02-03 17:47:03 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2013-02-03 17:47:03 +0000
commit7de0aae2cfe835f4530ba1ca316e1d2fb9bbcfef (patch)
tree650f601cf18de69164509968a350125f3693f340
parent2fe37bef25b42871de4925ca36dc855d4a9af964 (diff)
downloadnuttx-7de0aae2cfe835f4530ba1ca316e1d2fb9bbcfef.tar.gz
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Set stdio buffer sizes to 0 or 64. No need for 256 or 1024 stdio buffers
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5604 42af7a65-404d-4744-a932-0658087f49c3
-rwxr-xr-xnuttx/configs/avr32dev1/nsh/defconfig2
-rwxr-xr-xnuttx/configs/avr32dev1/ostest/defconfig2
-rw-r--r--nuttx/configs/c5471evm/httpd/defconfig2
-rw-r--r--nuttx/configs/c5471evm/nettest/defconfig2
-rw-r--r--nuttx/configs/c5471evm/nsh/defconfig2
-rw-r--r--nuttx/configs/c5471evm/ostest/defconfig2
-rw-r--r--nuttx/configs/cloudctrl/nsh/defconfig2
-rw-r--r--nuttx/configs/compal_e88/nsh_highram/defconfig2
-rw-r--r--nuttx/configs/compal_e99/nsh_compalram/defconfig2
-rw-r--r--nuttx/configs/compal_e99/nsh_highram/defconfig2
-rw-r--r--nuttx/configs/ea3131/nsh/defconfig2
-rw-r--r--nuttx/configs/ea3131/ostest/defconfig2
-rw-r--r--nuttx/configs/ea3131/pgnsh/defconfig2
-rw-r--r--nuttx/configs/ea3131/usbserial/defconfig2
-rw-r--r--nuttx/configs/ea3131/usbstorage/defconfig2
-rw-r--r--nuttx/configs/ea3152/ostest/defconfig2
-rw-r--r--nuttx/configs/eagle100/nsh/defconfig2
-rw-r--r--nuttx/configs/eagle100/nxflat/defconfig2
-rw-r--r--nuttx/configs/eagle100/ostest/defconfig2
-rw-r--r--nuttx/configs/ekk-lm3s9b96/nsh/defconfig2
-rw-r--r--nuttx/configs/ekk-lm3s9b96/ostest/defconfig2
-rw-r--r--nuttx/configs/ez80f910200zco/nsh/defconfig2
-rw-r--r--nuttx/configs/ez80f910200zco/ostest/defconfig2
-rw-r--r--nuttx/configs/fire-stm32v2/nsh/defconfig2
-rwxr-xr-xnuttx/configs/hymini-stm32v/nsh/defconfig2
-rw-r--r--nuttx/configs/hymini-stm32v/nsh2/defconfig2
-rw-r--r--nuttx/configs/hymini-stm32v/nx/defconfig2
-rw-r--r--nuttx/configs/hymini-stm32v/nxlines/defconfig2
-rwxr-xr-xnuttx/configs/hymini-stm32v/usbserial/defconfig2
-rwxr-xr-xnuttx/configs/hymini-stm32v/usbstorage/defconfig2
-rwxr-xr-xnuttx/configs/kwikstik-k40/ostest/defconfig2
-rw-r--r--nuttx/configs/lincoln60/nsh/defconfig2
-rw-r--r--nuttx/configs/lincoln60/ostest/defconfig2
-rw-r--r--nuttx/configs/lm3s6432-s2e/nsh/defconfig2
-rw-r--r--nuttx/configs/lm3s6432-s2e/ostest/defconfig2
-rwxr-xr-xnuttx/configs/lm3s6965-ek/nsh/defconfig2
-rwxr-xr-xnuttx/configs/lm3s6965-ek/nx/defconfig2
-rwxr-xr-xnuttx/configs/lm3s6965-ek/ostest/defconfig2
-rwxr-xr-xnuttx/configs/lm3s8962-ek/nsh/defconfig2
-rwxr-xr-xnuttx/configs/lm3s8962-ek/nx/defconfig2
-rwxr-xr-xnuttx/configs/lm3s8962-ek/ostest/defconfig2
-rw-r--r--nuttx/configs/lpc4330-xplorer/nsh/defconfig2
-rw-r--r--nuttx/configs/lpc4330-xplorer/ostest/defconfig2
-rwxr-xr-xnuttx/configs/lpcxpresso-lpc1768/nsh/defconfig2
-rwxr-xr-xnuttx/configs/lpcxpresso-lpc1768/nx/defconfig2
-rwxr-xr-xnuttx/configs/lpcxpresso-lpc1768/ostest/defconfig2
-rwxr-xr-xnuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig2
-rw-r--r--nuttx/configs/m68332evb/defconfig2
-rw-r--r--nuttx/configs/mbed/hidkbd/defconfig2
-rwxr-xr-xnuttx/configs/mbed/nsh/defconfig2
-rw-r--r--nuttx/configs/mcu123-lpc214x/composite/defconfig2
-rw-r--r--nuttx/configs/mcu123-lpc214x/nsh/defconfig2
-rw-r--r--nuttx/configs/mcu123-lpc214x/ostest/defconfig2
-rw-r--r--nuttx/configs/mcu123-lpc214x/usbserial/defconfig2
-rw-r--r--nuttx/configs/mcu123-lpc214x/usbstorage/defconfig2
-rw-r--r--nuttx/configs/mirtoo/ostest/defconfig2
-rw-r--r--nuttx/configs/mx1ads/ostest/defconfig2
-rw-r--r--nuttx/configs/ntosd-dm320/nettest/defconfig2
-rw-r--r--nuttx/configs/ntosd-dm320/nsh/defconfig2
-rw-r--r--nuttx/configs/ntosd-dm320/ostest/defconfig2
-rw-r--r--nuttx/configs/ntosd-dm320/poll/defconfig2
-rw-r--r--nuttx/configs/ntosd-dm320/thttpd/defconfig2
-rw-r--r--nuttx/configs/ntosd-dm320/udp/defconfig2
-rw-r--r--nuttx/configs/ntosd-dm320/uip/defconfig2
-rwxr-xr-xnuttx/configs/nucleus2g/nsh/defconfig2
-rwxr-xr-xnuttx/configs/nucleus2g/ostest/defconfig2
-rwxr-xr-xnuttx/configs/nucleus2g/usbserial/defconfig2
-rwxr-xr-xnuttx/configs/nucleus2g/usbstorage/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc1766stk/ftpc/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc1766stk/hidkbd/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc1766stk/nsh/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc1766stk/nx/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc1766stk/ostest/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc1766stk/usbserial/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc1766stk/usbstorage/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc2378/nsh/defconfig2
-rwxr-xr-xnuttx/configs/olimex-lpc2378/ostest/defconfig2
-rw-r--r--nuttx/configs/olimex-stm32-p107/nsh/defconfig2
-rw-r--r--nuttx/configs/olimex-stm32-p107/ostest/defconfig2
-rwxr-xr-xnuttx/configs/olimex-strp711/nettest/defconfig2
-rw-r--r--nuttx/configs/olimex-strp711/nsh/defconfig2
-rw-r--r--nuttx/configs/olimex-strp711/ostest/defconfig2
-rw-r--r--nuttx/configs/open1788/ostest/defconfig2
-rw-r--r--nuttx/configs/pcblogic-pic32mx/ostest/defconfig2
-rw-r--r--nuttx/configs/pic32-starterkit/nsh/defconfig2
-rw-r--r--nuttx/configs/pic32-starterkit/nsh2/defconfig2
-rw-r--r--nuttx/configs/qemu-i486/nsh/defconfig2
-rw-r--r--nuttx/configs/qemu-i486/ostest/defconfig2
-rwxr-xr-xnuttx/configs/sam3u-ek/knsh/defconfig2
-rwxr-xr-xnuttx/configs/sam3u-ek/nsh/defconfig2
-rwxr-xr-xnuttx/configs/sam3u-ek/nx/defconfig2
-rwxr-xr-xnuttx/configs/sam3u-ek/ostest/defconfig2
-rwxr-xr-xnuttx/configs/sam3u-ek/touchscreen/defconfig2
-rw-r--r--nuttx/configs/shenzhou/nsh/defconfig2
-rw-r--r--nuttx/configs/shenzhou/thttpd/defconfig2
-rw-r--r--nuttx/configs/sim/cxxtest/defconfig2
-rw-r--r--nuttx/configs/sim/mount/defconfig2
-rw-r--r--nuttx/configs/sim/nettest/defconfig2
-rw-r--r--nuttx/configs/sim/nsh/defconfig2
-rw-r--r--nuttx/configs/sim/nsh2/defconfig2
-rw-r--r--nuttx/configs/sim/nx/defconfig2
-rw-r--r--nuttx/configs/sim/nx11/defconfig2
-rw-r--r--nuttx/configs/sim/nxffs/defconfig2
-rw-r--r--nuttx/configs/sim/nxlines/defconfig2
-rw-r--r--nuttx/configs/sim/nxwm/defconfig2
-rw-r--r--nuttx/configs/sim/ostest/defconfig2
-rw-r--r--nuttx/configs/sim/pashello/defconfig2
-rw-r--r--nuttx/configs/sim/touchscreen/defconfig2
-rwxr-xr-xnuttx/configs/stm3210e-eval/RIDE/defconfig2
-rwxr-xr-xnuttx/configs/stm3210e-eval/composite/defconfig2
-rwxr-xr-xnuttx/configs/stm3210e-eval/nsh/defconfig2
-rw-r--r--nuttx/configs/stm3210e-eval/nsh2/defconfig2
-rw-r--r--nuttx/configs/stm3210e-eval/nx/defconfig2
-rw-r--r--nuttx/configs/stm3210e-eval/nxlines/defconfig2
-rw-r--r--nuttx/configs/stm3210e-eval/nxtext/defconfig2
-rwxr-xr-xnuttx/configs/stm3210e-eval/ostest/defconfig2
-rw-r--r--nuttx/configs/stm3210e-eval/pm/defconfig2
-rwxr-xr-xnuttx/configs/stm3210e-eval/usbserial/defconfig2
-rwxr-xr-xnuttx/configs/stm3210e-eval/usbstorage/defconfig2
-rw-r--r--nuttx/configs/stm3220g-eval/nsh/defconfig2
-rw-r--r--nuttx/configs/stm3220g-eval/nsh2/defconfig2
-rw-r--r--nuttx/configs/stm3220g-eval/ostest/defconfig2
-rw-r--r--nuttx/configs/stm3220g-eval/telnetd/defconfig2
-rw-r--r--nuttx/configs/stm3240g-eval/discover/defconfig2
-rw-r--r--nuttx/configs/stm3240g-eval/nsh/defconfig2
-rw-r--r--nuttx/configs/stm3240g-eval/nsh2/defconfig2
-rw-r--r--nuttx/configs/stm3240g-eval/ostest/defconfig2
-rw-r--r--nuttx/configs/stm3240g-eval/telnetd/defconfig2
-rw-r--r--nuttx/configs/stm3240g-eval/webserver/defconfig2
-rw-r--r--nuttx/configs/stm3240g-eval/xmlrpc/defconfig2
-rw-r--r--nuttx/configs/stm32f100rc_generic/nsh/defconfig2
-rw-r--r--nuttx/configs/stm32f100rc_generic/ostest/defconfig2
-rw-r--r--nuttx/configs/stm32f4discovery/cxxtest/defconfig2
-rw-r--r--nuttx/configs/stm32f4discovery/elf/defconfig2
-rw-r--r--nuttx/configs/stm32f4discovery/nsh/defconfig2
-rw-r--r--nuttx/configs/stm32f4discovery/nxlines/defconfig2
-rw-r--r--nuttx/configs/stm32f4discovery/ostest/defconfig2
-rw-r--r--nuttx/configs/stm32f4discovery/pm/defconfig2
-rw-r--r--nuttx/configs/stm32f4discovery/posix_spawn/defconfig2
-rw-r--r--nuttx/configs/stm32f4discovery/winbuild/defconfig2
-rw-r--r--nuttx/configs/sure-pic32mx/ostest/defconfig2
-rw-r--r--nuttx/configs/twr-k60n512/nsh/defconfig2
-rw-r--r--nuttx/configs/twr-k60n512/ostest/defconfig2
-rw-r--r--nuttx/configs/ubw32/ostest/defconfig2
-rwxr-xr-xnuttx/configs/vsn/nsh/defconfig2
-rw-r--r--nuttx/configs/z16f2800100zcog/ostest/defconfig2
-rw-r--r--nuttx/configs/z16f2800100zcog/pashello/defconfig2
-rw-r--r--nuttx/configs/zp214xpa/nsh/defconfig2
-rw-r--r--nuttx/configs/zp214xpa/nxlines/defconfig2
149 files changed, 149 insertions, 149 deletions
diff --git a/nuttx/configs/avr32dev1/nsh/defconfig b/nuttx/configs/avr32dev1/nsh/defconfig
index bd2f3703f..6c8b5b416 100755
--- a/nuttx/configs/avr32dev1/nsh/defconfig
+++ b/nuttx/configs/avr32dev1/nsh/defconfig
@@ -225,7 +225,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/avr32dev1/ostest/defconfig b/nuttx/configs/avr32dev1/ostest/defconfig
index 72d0c3ae3..a48883dda 100755
--- a/nuttx/configs/avr32dev1/ostest/defconfig
+++ b/nuttx/configs/avr32dev1/ostest/defconfig
@@ -225,7 +225,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/c5471evm/httpd/defconfig b/nuttx/configs/c5471evm/httpd/defconfig
index 3280b7c16..88fc0afe2 100644
--- a/nuttx/configs/c5471evm/httpd/defconfig
+++ b/nuttx/configs/c5471evm/httpd/defconfig
@@ -169,7 +169,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/c5471evm/nettest/defconfig b/nuttx/configs/c5471evm/nettest/defconfig
index 131e73f52..15258409e 100644
--- a/nuttx/configs/c5471evm/nettest/defconfig
+++ b/nuttx/configs/c5471evm/nettest/defconfig
@@ -169,7 +169,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/c5471evm/nsh/defconfig b/nuttx/configs/c5471evm/nsh/defconfig
index 49fc8f9d0..db54c255c 100644
--- a/nuttx/configs/c5471evm/nsh/defconfig
+++ b/nuttx/configs/c5471evm/nsh/defconfig
@@ -169,7 +169,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=0
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/c5471evm/ostest/defconfig b/nuttx/configs/c5471evm/ostest/defconfig
index 13013a2bd..f5893d546 100644
--- a/nuttx/configs/c5471evm/ostest/defconfig
+++ b/nuttx/configs/c5471evm/ostest/defconfig
@@ -169,7 +169,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/cloudctrl/nsh/defconfig b/nuttx/configs/cloudctrl/nsh/defconfig
index 009d9bdfa..4e47efcfc 100644
--- a/nuttx/configs/cloudctrl/nsh/defconfig
+++ b/nuttx/configs/cloudctrl/nsh/defconfig
@@ -469,7 +469,7 @@ CONFIG_BUILTIN=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/compal_e88/nsh_highram/defconfig b/nuttx/configs/compal_e88/nsh_highram/defconfig
index 9d5c0e3c4..46884c31b 100644
--- a/nuttx/configs/compal_e88/nsh_highram/defconfig
+++ b/nuttx/configs/compal_e88/nsh_highram/defconfig
@@ -177,7 +177,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=0
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/compal_e99/nsh_compalram/defconfig b/nuttx/configs/compal_e99/nsh_compalram/defconfig
index 79fe93ab5..621f68f1e 100644
--- a/nuttx/configs/compal_e99/nsh_compalram/defconfig
+++ b/nuttx/configs/compal_e99/nsh_compalram/defconfig
@@ -179,7 +179,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=0
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/compal_e99/nsh_highram/defconfig b/nuttx/configs/compal_e99/nsh_highram/defconfig
index 11ee153fa..52eb1d938 100644
--- a/nuttx/configs/compal_e99/nsh_highram/defconfig
+++ b/nuttx/configs/compal_e99/nsh_highram/defconfig
@@ -180,7 +180,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=0
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ea3131/nsh/defconfig b/nuttx/configs/ea3131/nsh/defconfig
index 04398d1a2..328cf96f0 100644
--- a/nuttx/configs/ea3131/nsh/defconfig
+++ b/nuttx/configs/ea3131/nsh/defconfig
@@ -198,7 +198,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ea3131/ostest/defconfig b/nuttx/configs/ea3131/ostest/defconfig
index d137835af..5f4b80027 100644
--- a/nuttx/configs/ea3131/ostest/defconfig
+++ b/nuttx/configs/ea3131/ostest/defconfig
@@ -198,7 +198,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ea3131/pgnsh/defconfig b/nuttx/configs/ea3131/pgnsh/defconfig
index d734bc21c..06c102016 100644
--- a/nuttx/configs/ea3131/pgnsh/defconfig
+++ b/nuttx/configs/ea3131/pgnsh/defconfig
@@ -241,7 +241,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ea3131/usbserial/defconfig b/nuttx/configs/ea3131/usbserial/defconfig
index 398d9b3bc..642a258c5 100644
--- a/nuttx/configs/ea3131/usbserial/defconfig
+++ b/nuttx/configs/ea3131/usbserial/defconfig
@@ -200,7 +200,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ea3131/usbstorage/defconfig b/nuttx/configs/ea3131/usbstorage/defconfig
index c69379ba9..73213ef4a 100644
--- a/nuttx/configs/ea3131/usbstorage/defconfig
+++ b/nuttx/configs/ea3131/usbstorage/defconfig
@@ -201,7 +201,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ea3152/ostest/defconfig b/nuttx/configs/ea3152/ostest/defconfig
index 07a1491ed..377d8fb99 100644
--- a/nuttx/configs/ea3152/ostest/defconfig
+++ b/nuttx/configs/ea3152/ostest/defconfig
@@ -199,7 +199,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/eagle100/nsh/defconfig b/nuttx/configs/eagle100/nsh/defconfig
index ed1c7b074..c15c3a7ae 100644
--- a/nuttx/configs/eagle100/nsh/defconfig
+++ b/nuttx/configs/eagle100/nsh/defconfig
@@ -203,7 +203,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/eagle100/nxflat/defconfig b/nuttx/configs/eagle100/nxflat/defconfig
index 590a30516..3cce495db 100644
--- a/nuttx/configs/eagle100/nxflat/defconfig
+++ b/nuttx/configs/eagle100/nxflat/defconfig
@@ -207,7 +207,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/eagle100/ostest/defconfig b/nuttx/configs/eagle100/ostest/defconfig
index 229aec59c..eb050ac9f 100644
--- a/nuttx/configs/eagle100/ostest/defconfig
+++ b/nuttx/configs/eagle100/ostest/defconfig
@@ -201,7 +201,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ekk-lm3s9b96/nsh/defconfig b/nuttx/configs/ekk-lm3s9b96/nsh/defconfig
index 0bf59edf4..ca305636a 100644
--- a/nuttx/configs/ekk-lm3s9b96/nsh/defconfig
+++ b/nuttx/configs/ekk-lm3s9b96/nsh/defconfig
@@ -219,7 +219,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ekk-lm3s9b96/ostest/defconfig b/nuttx/configs/ekk-lm3s9b96/ostest/defconfig
index 3ac3c066a..65a8734d5 100644
--- a/nuttx/configs/ekk-lm3s9b96/ostest/defconfig
+++ b/nuttx/configs/ekk-lm3s9b96/ostest/defconfig
@@ -218,7 +218,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ez80f910200zco/nsh/defconfig b/nuttx/configs/ez80f910200zco/nsh/defconfig
index 7b8f12a41..f6e6e9d56 100644
--- a/nuttx/configs/ez80f910200zco/nsh/defconfig
+++ b/nuttx/configs/ez80f910200zco/nsh/defconfig
@@ -181,7 +181,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ez80f910200zco/ostest/defconfig b/nuttx/configs/ez80f910200zco/ostest/defconfig
index 146b56327..e67f93da6 100644
--- a/nuttx/configs/ez80f910200zco/ostest/defconfig
+++ b/nuttx/configs/ez80f910200zco/ostest/defconfig
@@ -312,7 +312,7 @@ CONFIG_HEAP2_SIZE=0
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/fire-stm32v2/nsh/defconfig b/nuttx/configs/fire-stm32v2/nsh/defconfig
index 7a4bc1bed..e9df03b99 100644
--- a/nuttx/configs/fire-stm32v2/nsh/defconfig
+++ b/nuttx/configs/fire-stm32v2/nsh/defconfig
@@ -513,7 +513,7 @@ CONFIG_BUILTIN=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/hymini-stm32v/nsh/defconfig b/nuttx/configs/hymini-stm32v/nsh/defconfig
index 5736aadc8..146068df4 100755
--- a/nuttx/configs/hymini-stm32v/nsh/defconfig
+++ b/nuttx/configs/hymini-stm32v/nsh/defconfig
@@ -249,7 +249,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/hymini-stm32v/nsh2/defconfig b/nuttx/configs/hymini-stm32v/nsh2/defconfig
index 61c7fcd69..a2cac61fa 100644
--- a/nuttx/configs/hymini-stm32v/nsh2/defconfig
+++ b/nuttx/configs/hymini-stm32v/nsh2/defconfig
@@ -268,7 +268,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/hymini-stm32v/nx/defconfig b/nuttx/configs/hymini-stm32v/nx/defconfig
index 4e522cfd8..e0bcdfa00 100644
--- a/nuttx/configs/hymini-stm32v/nx/defconfig
+++ b/nuttx/configs/hymini-stm32v/nx/defconfig
@@ -257,7 +257,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/hymini-stm32v/nxlines/defconfig b/nuttx/configs/hymini-stm32v/nxlines/defconfig
index 7d1e8b975..7bfebcf2c 100644
--- a/nuttx/configs/hymini-stm32v/nxlines/defconfig
+++ b/nuttx/configs/hymini-stm32v/nxlines/defconfig
@@ -261,7 +261,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=12
CONFIG_NFILE_STREAMS=12
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/hymini-stm32v/usbserial/defconfig b/nuttx/configs/hymini-stm32v/usbserial/defconfig
index b53a79dd8..a677d2804 100755
--- a/nuttx/configs/hymini-stm32v/usbserial/defconfig
+++ b/nuttx/configs/hymini-stm32v/usbserial/defconfig
@@ -252,7 +252,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/hymini-stm32v/usbstorage/defconfig b/nuttx/configs/hymini-stm32v/usbstorage/defconfig
index d89a33a03..759e46cf1 100755
--- a/nuttx/configs/hymini-stm32v/usbstorage/defconfig
+++ b/nuttx/configs/hymini-stm32v/usbstorage/defconfig
@@ -259,7 +259,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/kwikstik-k40/ostest/defconfig b/nuttx/configs/kwikstik-k40/ostest/defconfig
index 826af71b8..912233ed9 100755
--- a/nuttx/configs/kwikstik-k40/ostest/defconfig
+++ b/nuttx/configs/kwikstik-k40/ostest/defconfig
@@ -261,7 +261,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lincoln60/nsh/defconfig b/nuttx/configs/lincoln60/nsh/defconfig
index abdea0c86..ef1b73eb8 100644
--- a/nuttx/configs/lincoln60/nsh/defconfig
+++ b/nuttx/configs/lincoln60/nsh/defconfig
@@ -238,7 +238,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lincoln60/ostest/defconfig b/nuttx/configs/lincoln60/ostest/defconfig
index 8ab244f0d..408baab29 100644
--- a/nuttx/configs/lincoln60/ostest/defconfig
+++ b/nuttx/configs/lincoln60/ostest/defconfig
@@ -244,7 +244,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lm3s6432-s2e/nsh/defconfig b/nuttx/configs/lm3s6432-s2e/nsh/defconfig
index cb3bbdeb4..b1a0a02c5 100644
--- a/nuttx/configs/lm3s6432-s2e/nsh/defconfig
+++ b/nuttx/configs/lm3s6432-s2e/nsh/defconfig
@@ -218,7 +218,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lm3s6432-s2e/ostest/defconfig b/nuttx/configs/lm3s6432-s2e/ostest/defconfig
index a3ec72422..5858bb76d 100644
--- a/nuttx/configs/lm3s6432-s2e/ostest/defconfig
+++ b/nuttx/configs/lm3s6432-s2e/ostest/defconfig
@@ -217,7 +217,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lm3s6965-ek/nsh/defconfig b/nuttx/configs/lm3s6965-ek/nsh/defconfig
index ccda5d9e8..e4ad8acc0 100755
--- a/nuttx/configs/lm3s6965-ek/nsh/defconfig
+++ b/nuttx/configs/lm3s6965-ek/nsh/defconfig
@@ -404,7 +404,7 @@ CONFIG_MM_REGIONS=1
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/lm3s6965-ek/nx/defconfig b/nuttx/configs/lm3s6965-ek/nx/defconfig
index b123800e0..a93a2434e 100755
--- a/nuttx/configs/lm3s6965-ek/nx/defconfig
+++ b/nuttx/configs/lm3s6965-ek/nx/defconfig
@@ -412,7 +412,7 @@ CONFIG_MM_REGIONS=1
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
# CONFIG_LIBM is not set
diff --git a/nuttx/configs/lm3s6965-ek/ostest/defconfig b/nuttx/configs/lm3s6965-ek/ostest/defconfig
index 7a1b0eb0a..95044e302 100755
--- a/nuttx/configs/lm3s6965-ek/ostest/defconfig
+++ b/nuttx/configs/lm3s6965-ek/ostest/defconfig
@@ -344,7 +344,7 @@ CONFIG_MM_REGIONS=1
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
# CONFIG_LIBM is not set
diff --git a/nuttx/configs/lm3s8962-ek/nsh/defconfig b/nuttx/configs/lm3s8962-ek/nsh/defconfig
index f49b977aa..03ff93bff 100755
--- a/nuttx/configs/lm3s8962-ek/nsh/defconfig
+++ b/nuttx/configs/lm3s8962-ek/nsh/defconfig
@@ -218,7 +218,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lm3s8962-ek/nx/defconfig b/nuttx/configs/lm3s8962-ek/nx/defconfig
index b92bd8e95..ef2e0367c 100755
--- a/nuttx/configs/lm3s8962-ek/nx/defconfig
+++ b/nuttx/configs/lm3s8962-ek/nx/defconfig
@@ -224,7 +224,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=12
CONFIG_NFILE_STREAMS=12
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lm3s8962-ek/ostest/defconfig b/nuttx/configs/lm3s8962-ek/ostest/defconfig
index cdf0477bc..e842b9ae4 100755
--- a/nuttx/configs/lm3s8962-ek/ostest/defconfig
+++ b/nuttx/configs/lm3s8962-ek/ostest/defconfig
@@ -217,7 +217,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lpc4330-xplorer/nsh/defconfig b/nuttx/configs/lpc4330-xplorer/nsh/defconfig
index 99c920078..5d75e7222 100644
--- a/nuttx/configs/lpc4330-xplorer/nsh/defconfig
+++ b/nuttx/configs/lpc4330-xplorer/nsh/defconfig
@@ -304,7 +304,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/lpc4330-xplorer/ostest/defconfig b/nuttx/configs/lpc4330-xplorer/ostest/defconfig
index fc853de17..005ff7174 100644
--- a/nuttx/configs/lpc4330-xplorer/ostest/defconfig
+++ b/nuttx/configs/lpc4330-xplorer/ostest/defconfig
@@ -301,7 +301,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=n
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/lpcxpresso-lpc1768/nsh/defconfig b/nuttx/configs/lpcxpresso-lpc1768/nsh/defconfig
index c11cf623f..50d6a7d95 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/nsh/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/nsh/defconfig
@@ -246,7 +246,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lpcxpresso-lpc1768/nx/defconfig b/nuttx/configs/lpcxpresso-lpc1768/nx/defconfig
index d4b3b8953..b9eeb792e 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/nx/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/nx/defconfig
@@ -255,7 +255,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=12
CONFIG_NFILE_STREAMS=12
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lpcxpresso-lpc1768/ostest/defconfig b/nuttx/configs/lpcxpresso-lpc1768/ostest/defconfig
index 831b717b9..062e821b5 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/ostest/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/ostest/defconfig
@@ -248,7 +248,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig b/nuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig
index fd055ee02..987eb0ff9 100755
--- a/nuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig
+++ b/nuttx/configs/lpcxpresso-lpc1768/usbstorage/defconfig
@@ -244,7 +244,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/m68332evb/defconfig b/nuttx/configs/m68332evb/defconfig
index 7e49073a9..0beaea91e 100644
--- a/nuttx/configs/m68332evb/defconfig
+++ b/nuttx/configs/m68332evb/defconfig
@@ -149,7 +149,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/mbed/hidkbd/defconfig b/nuttx/configs/mbed/hidkbd/defconfig
index 94b007355..b4cda857f 100644
--- a/nuttx/configs/mbed/hidkbd/defconfig
+++ b/nuttx/configs/mbed/hidkbd/defconfig
@@ -243,7 +243,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/mbed/nsh/defconfig b/nuttx/configs/mbed/nsh/defconfig
index 40a230b52..8d6b4983a 100755
--- a/nuttx/configs/mbed/nsh/defconfig
+++ b/nuttx/configs/mbed/nsh/defconfig
@@ -238,7 +238,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/mcu123-lpc214x/composite/defconfig b/nuttx/configs/mcu123-lpc214x/composite/defconfig
index 682facbab..2ecfe470f 100644
--- a/nuttx/configs/mcu123-lpc214x/composite/defconfig
+++ b/nuttx/configs/mcu123-lpc214x/composite/defconfig
@@ -175,7 +175,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/mcu123-lpc214x/nsh/defconfig b/nuttx/configs/mcu123-lpc214x/nsh/defconfig
index e065ef3fb..2ec2a627d 100644
--- a/nuttx/configs/mcu123-lpc214x/nsh/defconfig
+++ b/nuttx/configs/mcu123-lpc214x/nsh/defconfig
@@ -360,7 +360,7 @@ CONFIG_MM_REGIONS=1
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/mcu123-lpc214x/ostest/defconfig b/nuttx/configs/mcu123-lpc214x/ostest/defconfig
index 7d0c50157..1e505868b 100644
--- a/nuttx/configs/mcu123-lpc214x/ostest/defconfig
+++ b/nuttx/configs/mcu123-lpc214x/ostest/defconfig
@@ -173,7 +173,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/mcu123-lpc214x/usbserial/defconfig b/nuttx/configs/mcu123-lpc214x/usbserial/defconfig
index c9f528c37..127416ad2 100644
--- a/nuttx/configs/mcu123-lpc214x/usbserial/defconfig
+++ b/nuttx/configs/mcu123-lpc214x/usbserial/defconfig
@@ -173,7 +173,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/mcu123-lpc214x/usbstorage/defconfig b/nuttx/configs/mcu123-lpc214x/usbstorage/defconfig
index 4273315c6..17b99e16e 100644
--- a/nuttx/configs/mcu123-lpc214x/usbstorage/defconfig
+++ b/nuttx/configs/mcu123-lpc214x/usbstorage/defconfig
@@ -175,7 +175,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/mirtoo/ostest/defconfig b/nuttx/configs/mirtoo/ostest/defconfig
index 46612d993..f2d234e37 100644
--- a/nuttx/configs/mirtoo/ostest/defconfig
+++ b/nuttx/configs/mirtoo/ostest/defconfig
@@ -252,7 +252,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=n
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/mx1ads/ostest/defconfig b/nuttx/configs/mx1ads/ostest/defconfig
index d432b8469..cc0111f20 100644
--- a/nuttx/configs/mx1ads/ostest/defconfig
+++ b/nuttx/configs/mx1ads/ostest/defconfig
@@ -179,7 +179,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ntosd-dm320/nettest/defconfig b/nuttx/configs/ntosd-dm320/nettest/defconfig
index ee70127e3..3d2127e90 100644
--- a/nuttx/configs/ntosd-dm320/nettest/defconfig
+++ b/nuttx/configs/ntosd-dm320/nettest/defconfig
@@ -171,7 +171,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ntosd-dm320/nsh/defconfig b/nuttx/configs/ntosd-dm320/nsh/defconfig
index 83f0dde79..231108374 100644
--- a/nuttx/configs/ntosd-dm320/nsh/defconfig
+++ b/nuttx/configs/ntosd-dm320/nsh/defconfig
@@ -170,7 +170,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ntosd-dm320/ostest/defconfig b/nuttx/configs/ntosd-dm320/ostest/defconfig
index 94a946db3..0d7333142 100644
--- a/nuttx/configs/ntosd-dm320/ostest/defconfig
+++ b/nuttx/configs/ntosd-dm320/ostest/defconfig
@@ -171,7 +171,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ntosd-dm320/poll/defconfig b/nuttx/configs/ntosd-dm320/poll/defconfig
index d80868883..85ee21df4 100644
--- a/nuttx/configs/ntosd-dm320/poll/defconfig
+++ b/nuttx/configs/ntosd-dm320/poll/defconfig
@@ -171,7 +171,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ntosd-dm320/thttpd/defconfig b/nuttx/configs/ntosd-dm320/thttpd/defconfig
index 632e9a16e..593ac48ae 100644
--- a/nuttx/configs/ntosd-dm320/thttpd/defconfig
+++ b/nuttx/configs/ntosd-dm320/thttpd/defconfig
@@ -181,7 +181,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ntosd-dm320/udp/defconfig b/nuttx/configs/ntosd-dm320/udp/defconfig
index 3d79e75ac..2282bb8ee 100644
--- a/nuttx/configs/ntosd-dm320/udp/defconfig
+++ b/nuttx/configs/ntosd-dm320/udp/defconfig
@@ -171,7 +171,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ntosd-dm320/uip/defconfig b/nuttx/configs/ntosd-dm320/uip/defconfig
index 6e08a3702..883c4bf3a 100644
--- a/nuttx/configs/ntosd-dm320/uip/defconfig
+++ b/nuttx/configs/ntosd-dm320/uip/defconfig
@@ -171,7 +171,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=0
CONFIG_NFILE_STREAMS=0
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=0
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/nucleus2g/nsh/defconfig b/nuttx/configs/nucleus2g/nsh/defconfig
index 8f3e50971..de116283e 100755
--- a/nuttx/configs/nucleus2g/nsh/defconfig
+++ b/nuttx/configs/nucleus2g/nsh/defconfig
@@ -239,7 +239,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/nucleus2g/ostest/defconfig b/nuttx/configs/nucleus2g/ostest/defconfig
index 8f6cc8ac1..8ee63f20b 100755
--- a/nuttx/configs/nucleus2g/ostest/defconfig
+++ b/nuttx/configs/nucleus2g/ostest/defconfig
@@ -238,7 +238,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/nucleus2g/usbserial/defconfig b/nuttx/configs/nucleus2g/usbserial/defconfig
index edd2160b4..a8d03dae6 100755
--- a/nuttx/configs/nucleus2g/usbserial/defconfig
+++ b/nuttx/configs/nucleus2g/usbserial/defconfig
@@ -239,7 +239,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/nucleus2g/usbstorage/defconfig b/nuttx/configs/nucleus2g/usbstorage/defconfig
index 8ea4614be..c1ce0605f 100755
--- a/nuttx/configs/nucleus2g/usbstorage/defconfig
+++ b/nuttx/configs/nucleus2g/usbstorage/defconfig
@@ -240,7 +240,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-lpc1766stk/ftpc/defconfig b/nuttx/configs/olimex-lpc1766stk/ftpc/defconfig
index a25be53de..7df773174 100755
--- a/nuttx/configs/olimex-lpc1766stk/ftpc/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/ftpc/defconfig
@@ -257,7 +257,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=12
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-lpc1766stk/hidkbd/defconfig b/nuttx/configs/olimex-lpc1766stk/hidkbd/defconfig
index fce1ed26f..be11149a1 100755
--- a/nuttx/configs/olimex-lpc1766stk/hidkbd/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/hidkbd/defconfig
@@ -432,7 +432,7 @@ CONFIG_MM_REGIONS=2
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/olimex-lpc1766stk/nsh/defconfig b/nuttx/configs/olimex-lpc1766stk/nsh/defconfig
index c77f3f0c2..05ca0fa2e 100755
--- a/nuttx/configs/olimex-lpc1766stk/nsh/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/nsh/defconfig
@@ -484,7 +484,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/olimex-lpc1766stk/nx/defconfig b/nuttx/configs/olimex-lpc1766stk/nx/defconfig
index f27acf40e..9af4e7aca 100755
--- a/nuttx/configs/olimex-lpc1766stk/nx/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/nx/defconfig
@@ -254,7 +254,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=12
CONFIG_NFILE_STREAMS=12
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-lpc1766stk/ostest/defconfig b/nuttx/configs/olimex-lpc1766stk/ostest/defconfig
index f341a49c4..24b2126c2 100755
--- a/nuttx/configs/olimex-lpc1766stk/ostest/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/ostest/defconfig
@@ -244,7 +244,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-lpc1766stk/usbserial/defconfig b/nuttx/configs/olimex-lpc1766stk/usbserial/defconfig
index 122e61485..628f11d2f 100755
--- a/nuttx/configs/olimex-lpc1766stk/usbserial/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/usbserial/defconfig
@@ -245,7 +245,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-lpc1766stk/usbstorage/defconfig b/nuttx/configs/olimex-lpc1766stk/usbstorage/defconfig
index 51743e020..7e8b7abe1 100755
--- a/nuttx/configs/olimex-lpc1766stk/usbstorage/defconfig
+++ b/nuttx/configs/olimex-lpc1766stk/usbstorage/defconfig
@@ -246,7 +246,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-lpc2378/nsh/defconfig b/nuttx/configs/olimex-lpc2378/nsh/defconfig
index c6728adb7..6e45f7f46 100755
--- a/nuttx/configs/olimex-lpc2378/nsh/defconfig
+++ b/nuttx/configs/olimex-lpc2378/nsh/defconfig
@@ -194,7 +194,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-lpc2378/ostest/defconfig b/nuttx/configs/olimex-lpc2378/ostest/defconfig
index 01e1918fd..dd9d9578d 100755
--- a/nuttx/configs/olimex-lpc2378/ostest/defconfig
+++ b/nuttx/configs/olimex-lpc2378/ostest/defconfig
@@ -194,7 +194,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-stm32-p107/nsh/defconfig b/nuttx/configs/olimex-stm32-p107/nsh/defconfig
index 1dcb5123a..1a0eca109 100644
--- a/nuttx/configs/olimex-stm32-p107/nsh/defconfig
+++ b/nuttx/configs/olimex-stm32-p107/nsh/defconfig
@@ -291,7 +291,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-stm32-p107/ostest/defconfig b/nuttx/configs/olimex-stm32-p107/ostest/defconfig
index 6bc065784..6d5901312 100644
--- a/nuttx/configs/olimex-stm32-p107/ostest/defconfig
+++ b/nuttx/configs/olimex-stm32-p107/ostest/defconfig
@@ -299,7 +299,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-strp711/nettest/defconfig b/nuttx/configs/olimex-strp711/nettest/defconfig
index bc95f0c02..d36b42bb9 100755
--- a/nuttx/configs/olimex-strp711/nettest/defconfig
+++ b/nuttx/configs/olimex-strp711/nettest/defconfig
@@ -217,7 +217,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-strp711/nsh/defconfig b/nuttx/configs/olimex-strp711/nsh/defconfig
index 886498eae..10b408df6 100644
--- a/nuttx/configs/olimex-strp711/nsh/defconfig
+++ b/nuttx/configs/olimex-strp711/nsh/defconfig
@@ -211,7 +211,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/olimex-strp711/ostest/defconfig b/nuttx/configs/olimex-strp711/ostest/defconfig
index b5621315a..47e55c944 100644
--- a/nuttx/configs/olimex-strp711/ostest/defconfig
+++ b/nuttx/configs/olimex-strp711/ostest/defconfig
@@ -211,7 +211,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/open1788/ostest/defconfig b/nuttx/configs/open1788/ostest/defconfig
index 69c480344..357285314 100644
--- a/nuttx/configs/open1788/ostest/defconfig
+++ b/nuttx/configs/open1788/ostest/defconfig
@@ -415,7 +415,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
# CONFIG_LIBM is not set
diff --git a/nuttx/configs/pcblogic-pic32mx/ostest/defconfig b/nuttx/configs/pcblogic-pic32mx/ostest/defconfig
index 19196eae9..1cf57ca4c 100644
--- a/nuttx/configs/pcblogic-pic32mx/ostest/defconfig
+++ b/nuttx/configs/pcblogic-pic32mx/ostest/defconfig
@@ -243,7 +243,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/pic32-starterkit/nsh/defconfig b/nuttx/configs/pic32-starterkit/nsh/defconfig
index b50dd77fb..16448a95f 100644
--- a/nuttx/configs/pic32-starterkit/nsh/defconfig
+++ b/nuttx/configs/pic32-starterkit/nsh/defconfig
@@ -322,7 +322,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=128
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/pic32-starterkit/nsh2/defconfig b/nuttx/configs/pic32-starterkit/nsh2/defconfig
index 2a1be755d..a50ac506c 100644
--- a/nuttx/configs/pic32-starterkit/nsh2/defconfig
+++ b/nuttx/configs/pic32-starterkit/nsh2/defconfig
@@ -321,7 +321,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=128
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/qemu-i486/nsh/defconfig b/nuttx/configs/qemu-i486/nsh/defconfig
index 09e252e0b..a482e6fac 100644
--- a/nuttx/configs/qemu-i486/nsh/defconfig
+++ b/nuttx/configs/qemu-i486/nsh/defconfig
@@ -205,7 +205,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/qemu-i486/ostest/defconfig b/nuttx/configs/qemu-i486/ostest/defconfig
index aeae97df1..4a2331638 100644
--- a/nuttx/configs/qemu-i486/ostest/defconfig
+++ b/nuttx/configs/qemu-i486/ostest/defconfig
@@ -137,7 +137,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sam3u-ek/knsh/defconfig b/nuttx/configs/sam3u-ek/knsh/defconfig
index 709c3e785..567f1789e 100755
--- a/nuttx/configs/sam3u-ek/knsh/defconfig
+++ b/nuttx/configs/sam3u-ek/knsh/defconfig
@@ -253,7 +253,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sam3u-ek/nsh/defconfig b/nuttx/configs/sam3u-ek/nsh/defconfig
index 38520a9aa..034fe37a8 100755
--- a/nuttx/configs/sam3u-ek/nsh/defconfig
+++ b/nuttx/configs/sam3u-ek/nsh/defconfig
@@ -228,7 +228,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sam3u-ek/nx/defconfig b/nuttx/configs/sam3u-ek/nx/defconfig
index a21a6570d..29fd3dd6e 100755
--- a/nuttx/configs/sam3u-ek/nx/defconfig
+++ b/nuttx/configs/sam3u-ek/nx/defconfig
@@ -229,7 +229,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=12
CONFIG_NFILE_STREAMS=12
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sam3u-ek/ostest/defconfig b/nuttx/configs/sam3u-ek/ostest/defconfig
index 5125f5ba9..e8321a896 100755
--- a/nuttx/configs/sam3u-ek/ostest/defconfig
+++ b/nuttx/configs/sam3u-ek/ostest/defconfig
@@ -229,7 +229,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sam3u-ek/touchscreen/defconfig b/nuttx/configs/sam3u-ek/touchscreen/defconfig
index 25f808635..dc41a75ea 100755
--- a/nuttx/configs/sam3u-ek/touchscreen/defconfig
+++ b/nuttx/configs/sam3u-ek/touchscreen/defconfig
@@ -246,7 +246,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/shenzhou/nsh/defconfig b/nuttx/configs/shenzhou/nsh/defconfig
index d23290e86..f65228ac4 100644
--- a/nuttx/configs/shenzhou/nsh/defconfig
+++ b/nuttx/configs/shenzhou/nsh/defconfig
@@ -469,7 +469,7 @@ CONFIG_BUILTIN=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/shenzhou/thttpd/defconfig b/nuttx/configs/shenzhou/thttpd/defconfig
index 05d5fa337..34fcaadd0 100644
--- a/nuttx/configs/shenzhou/thttpd/defconfig
+++ b/nuttx/configs/shenzhou/thttpd/defconfig
@@ -447,7 +447,7 @@ CONFIG_MM_REGIONS=1
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/sim/cxxtest/defconfig b/nuttx/configs/sim/cxxtest/defconfig
index b12eda172..a78373f20 100644
--- a/nuttx/configs/sim/cxxtest/defconfig
+++ b/nuttx/configs/sim/cxxtest/defconfig
@@ -258,7 +258,7 @@ CONFIG_MM_REGIONS=1
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/sim/mount/defconfig b/nuttx/configs/sim/mount/defconfig
index 7caa87852..be62a96de 100644
--- a/nuttx/configs/sim/mount/defconfig
+++ b/nuttx/configs/sim/mount/defconfig
@@ -128,7 +128,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sim/nettest/defconfig b/nuttx/configs/sim/nettest/defconfig
index c216e2edc..643ee1c9f 100644
--- a/nuttx/configs/sim/nettest/defconfig
+++ b/nuttx/configs/sim/nettest/defconfig
@@ -128,7 +128,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sim/nsh/defconfig b/nuttx/configs/sim/nsh/defconfig
index 61fe18a44..c3088107d 100644
--- a/nuttx/configs/sim/nsh/defconfig
+++ b/nuttx/configs/sim/nsh/defconfig
@@ -281,7 +281,7 @@ CONFIG_BUILTIN=y
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/sim/nsh2/defconfig b/nuttx/configs/sim/nsh2/defconfig
index bcbe806cc..ce6563fe9 100644
--- a/nuttx/configs/sim/nsh2/defconfig
+++ b/nuttx/configs/sim/nsh2/defconfig
@@ -163,7 +163,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sim/nx/defconfig b/nuttx/configs/sim/nx/defconfig
index 0fddca096..de73491ab 100644
--- a/nuttx/configs/sim/nx/defconfig
+++ b/nuttx/configs/sim/nx/defconfig
@@ -139,7 +139,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=16
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sim/nx11/defconfig b/nuttx/configs/sim/nx11/defconfig
index 0ac3362be..1702045f3 100644
--- a/nuttx/configs/sim/nx11/defconfig
+++ b/nuttx/configs/sim/nx11/defconfig
@@ -146,7 +146,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=16
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sim/nxffs/defconfig b/nuttx/configs/sim/nxffs/defconfig
index 79f5b0f93..7899f119d 100644
--- a/nuttx/configs/sim/nxffs/defconfig
+++ b/nuttx/configs/sim/nxffs/defconfig
@@ -129,7 +129,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sim/nxlines/defconfig b/nuttx/configs/sim/nxlines/defconfig
index c798b175f..75ac00e1f 100644
--- a/nuttx/configs/sim/nxlines/defconfig
+++ b/nuttx/configs/sim/nxlines/defconfig
@@ -326,7 +326,7 @@ CONFIG_MM_REGIONS=1
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/sim/nxwm/defconfig b/nuttx/configs/sim/nxwm/defconfig
index 90ee00f50..5da33846f 100644
--- a/nuttx/configs/sim/nxwm/defconfig
+++ b/nuttx/configs/sim/nxwm/defconfig
@@ -338,7 +338,7 @@ CONFIG_MM_REGIONS=1
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/sim/ostest/defconfig b/nuttx/configs/sim/ostest/defconfig
index 07a0f71b4..60b1fb5a4 100644
--- a/nuttx/configs/sim/ostest/defconfig
+++ b/nuttx/configs/sim/ostest/defconfig
@@ -289,7 +289,7 @@ CONFIG_MM_REGIONS=1
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/sim/pashello/defconfig b/nuttx/configs/sim/pashello/defconfig
index b40ec626e..56f6b8a32 100644
--- a/nuttx/configs/sim/pashello/defconfig
+++ b/nuttx/configs/sim/pashello/defconfig
@@ -128,7 +128,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=32
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/sim/touchscreen/defconfig b/nuttx/configs/sim/touchscreen/defconfig
index 6a2e3e304..25e047185 100644
--- a/nuttx/configs/sim/touchscreen/defconfig
+++ b/nuttx/configs/sim/touchscreen/defconfig
@@ -145,7 +145,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=16
CONFIG_NFILE_STREAMS=16
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=32
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/RIDE/defconfig b/nuttx/configs/stm3210e-eval/RIDE/defconfig
index 662537a9d..ee2b68793 100755
--- a/nuttx/configs/stm3210e-eval/RIDE/defconfig
+++ b/nuttx/configs/stm3210e-eval/RIDE/defconfig
@@ -257,7 +257,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/composite/defconfig b/nuttx/configs/stm3210e-eval/composite/defconfig
index b5c39f928..c9504c516 100755
--- a/nuttx/configs/stm3210e-eval/composite/defconfig
+++ b/nuttx/configs/stm3210e-eval/composite/defconfig
@@ -274,7 +274,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/nsh/defconfig b/nuttx/configs/stm3210e-eval/nsh/defconfig
index 12ebc34c2..718dcfa8a 100755
--- a/nuttx/configs/stm3210e-eval/nsh/defconfig
+++ b/nuttx/configs/stm3210e-eval/nsh/defconfig
@@ -265,7 +265,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/nsh2/defconfig b/nuttx/configs/stm3210e-eval/nsh2/defconfig
index 2be2dcefd..49d5dbf8c 100644
--- a/nuttx/configs/stm3210e-eval/nsh2/defconfig
+++ b/nuttx/configs/stm3210e-eval/nsh2/defconfig
@@ -321,7 +321,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/nx/defconfig b/nuttx/configs/stm3210e-eval/nx/defconfig
index bff031617..788fe7216 100644
--- a/nuttx/configs/stm3210e-eval/nx/defconfig
+++ b/nuttx/configs/stm3210e-eval/nx/defconfig
@@ -273,7 +273,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/nxlines/defconfig b/nuttx/configs/stm3210e-eval/nxlines/defconfig
index 760b3a6e1..8832fb0b8 100644
--- a/nuttx/configs/stm3210e-eval/nxlines/defconfig
+++ b/nuttx/configs/stm3210e-eval/nxlines/defconfig
@@ -273,7 +273,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=12
CONFIG_NFILE_STREAMS=12
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/nxtext/defconfig b/nuttx/configs/stm3210e-eval/nxtext/defconfig
index d8b1fbe1e..aa9284c5f 100644
--- a/nuttx/configs/stm3210e-eval/nxtext/defconfig
+++ b/nuttx/configs/stm3210e-eval/nxtext/defconfig
@@ -273,7 +273,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=12
CONFIG_NFILE_STREAMS=12
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/ostest/defconfig b/nuttx/configs/stm3210e-eval/ostest/defconfig
index eb14399ea..9e9a4e123 100755
--- a/nuttx/configs/stm3210e-eval/ostest/defconfig
+++ b/nuttx/configs/stm3210e-eval/ostest/defconfig
@@ -277,7 +277,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/pm/defconfig b/nuttx/configs/stm3210e-eval/pm/defconfig
index e4a976727..224953ec2 100644
--- a/nuttx/configs/stm3210e-eval/pm/defconfig
+++ b/nuttx/configs/stm3210e-eval/pm/defconfig
@@ -352,7 +352,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/usbserial/defconfig b/nuttx/configs/stm3210e-eval/usbserial/defconfig
index c1f935e96..66069d5ad 100755
--- a/nuttx/configs/stm3210e-eval/usbserial/defconfig
+++ b/nuttx/configs/stm3210e-eval/usbserial/defconfig
@@ -267,7 +267,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3210e-eval/usbstorage/defconfig b/nuttx/configs/stm3210e-eval/usbstorage/defconfig
index 3e7119353..b4d15ae8c 100755
--- a/nuttx/configs/stm3210e-eval/usbstorage/defconfig
+++ b/nuttx/configs/stm3210e-eval/usbstorage/defconfig
@@ -274,7 +274,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/stm3220g-eval/nsh/defconfig b/nuttx/configs/stm3220g-eval/nsh/defconfig
index 71a03d212..7513abed8 100644
--- a/nuttx/configs/stm3220g-eval/nsh/defconfig
+++ b/nuttx/configs/stm3220g-eval/nsh/defconfig
@@ -374,7 +374,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/stm3220g-eval/nsh2/defconfig b/nuttx/configs/stm3220g-eval/nsh2/defconfig
index 84950645b..f1417ef06 100644
--- a/nuttx/configs/stm3220g-eval/nsh2/defconfig
+++ b/nuttx/configs/stm3220g-eval/nsh2/defconfig
@@ -373,7 +373,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/stm3220g-eval/ostest/defconfig b/nuttx/configs/stm3220g-eval/ostest/defconfig
index f03f67cbd..fbd7a0c1b 100644
--- a/nuttx/configs/stm3220g-eval/ostest/defconfig
+++ b/nuttx/configs/stm3220g-eval/ostest/defconfig
@@ -327,7 +327,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=n
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/stm3220g-eval/telnetd/defconfig b/nuttx/configs/stm3220g-eval/telnetd/defconfig
index b89e7d4f7..18ed2babb 100644
--- a/nuttx/configs/stm3220g-eval/telnetd/defconfig
+++ b/nuttx/configs/stm3220g-eval/telnetd/defconfig
@@ -328,7 +328,7 @@ CONFIG_NPTHREAD_KEYS=0
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=128
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=0
CONFIG_PREALLOC_MQ_MSGS=0
diff --git a/nuttx/configs/stm3240g-eval/discover/defconfig b/nuttx/configs/stm3240g-eval/discover/defconfig
index 37b74972f..ba67481e3 100644
--- a/nuttx/configs/stm3240g-eval/discover/defconfig
+++ b/nuttx/configs/stm3240g-eval/discover/defconfig
@@ -467,7 +467,7 @@ CONFIG_MM_REGIONS=2
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/stm3240g-eval/nsh/defconfig b/nuttx/configs/stm3240g-eval/nsh/defconfig
index efc60cd2f..018aafdcf 100644
--- a/nuttx/configs/stm3240g-eval/nsh/defconfig
+++ b/nuttx/configs/stm3240g-eval/nsh/defconfig
@@ -379,7 +379,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/stm3240g-eval/nsh2/defconfig b/nuttx/configs/stm3240g-eval/nsh2/defconfig
index 122910e4e..1c59b74a4 100644
--- a/nuttx/configs/stm3240g-eval/nsh2/defconfig
+++ b/nuttx/configs/stm3240g-eval/nsh2/defconfig
@@ -379,7 +379,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/stm3240g-eval/ostest/defconfig b/nuttx/configs/stm3240g-eval/ostest/defconfig
index f7eb4ef95..87cafe778 100644
--- a/nuttx/configs/stm3240g-eval/ostest/defconfig
+++ b/nuttx/configs/stm3240g-eval/ostest/defconfig
@@ -332,7 +332,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=n
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/stm3240g-eval/telnetd/defconfig b/nuttx/configs/stm3240g-eval/telnetd/defconfig
index ec04476b7..faab76377 100644
--- a/nuttx/configs/stm3240g-eval/telnetd/defconfig
+++ b/nuttx/configs/stm3240g-eval/telnetd/defconfig
@@ -334,7 +334,7 @@ CONFIG_NPTHREAD_KEYS=0
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=128
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=0
CONFIG_PREALLOC_MQ_MSGS=0
diff --git a/nuttx/configs/stm3240g-eval/webserver/defconfig b/nuttx/configs/stm3240g-eval/webserver/defconfig
index 6b4d47e53..f736a198b 100644
--- a/nuttx/configs/stm3240g-eval/webserver/defconfig
+++ b/nuttx/configs/stm3240g-eval/webserver/defconfig
@@ -379,7 +379,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/stm3240g-eval/xmlrpc/defconfig b/nuttx/configs/stm3240g-eval/xmlrpc/defconfig
index daa1efb8a..02b765c96 100644
--- a/nuttx/configs/stm3240g-eval/xmlrpc/defconfig
+++ b/nuttx/configs/stm3240g-eval/xmlrpc/defconfig
@@ -460,7 +460,7 @@ CONFIG_MM_REGIONS=2
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/stm32f100rc_generic/nsh/defconfig b/nuttx/configs/stm32f100rc_generic/nsh/defconfig
index aea79ff3f..2ec1caf61 100644
--- a/nuttx/configs/stm32f100rc_generic/nsh/defconfig
+++ b/nuttx/configs/stm32f100rc_generic/nsh/defconfig
@@ -399,7 +399,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/stm32f100rc_generic/ostest/defconfig b/nuttx/configs/stm32f100rc_generic/ostest/defconfig
index 2d2842c54..907a9b800 100644
--- a/nuttx/configs/stm32f100rc_generic/ostest/defconfig
+++ b/nuttx/configs/stm32f100rc_generic/ostest/defconfig
@@ -381,7 +381,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
# CONFIG_LIBM is not set
diff --git a/nuttx/configs/stm32f4discovery/cxxtest/defconfig b/nuttx/configs/stm32f4discovery/cxxtest/defconfig
index e7fa49954..d95d2943a 100644
--- a/nuttx/configs/stm32f4discovery/cxxtest/defconfig
+++ b/nuttx/configs/stm32f4discovery/cxxtest/defconfig
@@ -387,7 +387,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIBM=y
diff --git a/nuttx/configs/stm32f4discovery/elf/defconfig b/nuttx/configs/stm32f4discovery/elf/defconfig
index f7e0dc5f2..02a081949 100644
--- a/nuttx/configs/stm32f4discovery/elf/defconfig
+++ b/nuttx/configs/stm32f4discovery/elf/defconfig
@@ -447,7 +447,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/stm32f4discovery/nsh/defconfig b/nuttx/configs/stm32f4discovery/nsh/defconfig
index ea97dfeff..69e06248b 100644
--- a/nuttx/configs/stm32f4discovery/nsh/defconfig
+++ b/nuttx/configs/stm32f4discovery/nsh/defconfig
@@ -455,7 +455,7 @@ CONFIG_BUILTIN=y
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/stm32f4discovery/nxlines/defconfig b/nuttx/configs/stm32f4discovery/nxlines/defconfig
index 58eebd41f..9f3b6d6c1 100644
--- a/nuttx/configs/stm32f4discovery/nxlines/defconfig
+++ b/nuttx/configs/stm32f4discovery/nxlines/defconfig
@@ -481,7 +481,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/stm32f4discovery/ostest/defconfig b/nuttx/configs/stm32f4discovery/ostest/defconfig
index 5fdd30f57..c7fb6b2a5 100644
--- a/nuttx/configs/stm32f4discovery/ostest/defconfig
+++ b/nuttx/configs/stm32f4discovery/ostest/defconfig
@@ -401,7 +401,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
# CONFIG_LIBM is not set
diff --git a/nuttx/configs/stm32f4discovery/pm/defconfig b/nuttx/configs/stm32f4discovery/pm/defconfig
index 981a8abb2..7a04e6557 100644
--- a/nuttx/configs/stm32f4discovery/pm/defconfig
+++ b/nuttx/configs/stm32f4discovery/pm/defconfig
@@ -367,7 +367,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
diff --git a/nuttx/configs/stm32f4discovery/posix_spawn/defconfig b/nuttx/configs/stm32f4discovery/posix_spawn/defconfig
index b365f735d..c34533c33 100644
--- a/nuttx/configs/stm32f4discovery/posix_spawn/defconfig
+++ b/nuttx/configs/stm32f4discovery/posix_spawn/defconfig
@@ -428,7 +428,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/stm32f4discovery/winbuild/defconfig b/nuttx/configs/stm32f4discovery/winbuild/defconfig
index 95be14886..30f6a225c 100644
--- a/nuttx/configs/stm32f4discovery/winbuild/defconfig
+++ b/nuttx/configs/stm32f4discovery/winbuild/defconfig
@@ -401,7 +401,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
# CONFIG_LIBM is not set
diff --git a/nuttx/configs/sure-pic32mx/ostest/defconfig b/nuttx/configs/sure-pic32mx/ostest/defconfig
index a04f2171a..52562f76a 100644
--- a/nuttx/configs/sure-pic32mx/ostest/defconfig
+++ b/nuttx/configs/sure-pic32mx/ostest/defconfig
@@ -244,7 +244,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/twr-k60n512/nsh/defconfig b/nuttx/configs/twr-k60n512/nsh/defconfig
index 959379bea..aaa1ea96f 100644
--- a/nuttx/configs/twr-k60n512/nsh/defconfig
+++ b/nuttx/configs/twr-k60n512/nsh/defconfig
@@ -261,7 +261,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/twr-k60n512/ostest/defconfig b/nuttx/configs/twr-k60n512/ostest/defconfig
index 14d3435da..12eb4855d 100644
--- a/nuttx/configs/twr-k60n512/ostest/defconfig
+++ b/nuttx/configs/twr-k60n512/ostest/defconfig
@@ -260,7 +260,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/ubw32/ostest/defconfig b/nuttx/configs/ubw32/ostest/defconfig
index a722e25e7..e183b7526 100644
--- a/nuttx/configs/ubw32/ostest/defconfig
+++ b/nuttx/configs/ubw32/ostest/defconfig
@@ -451,7 +451,7 @@ CONFIG_SYMTAB_ORDEREDBYNAME=y
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
# CONFIG_LIBM is not set
diff --git a/nuttx/configs/vsn/nsh/defconfig b/nuttx/configs/vsn/nsh/defconfig
index 88d14aba6..1a59feb9e 100755
--- a/nuttx/configs/vsn/nsh/defconfig
+++ b/nuttx/configs/vsn/nsh/defconfig
@@ -304,7 +304,7 @@ CONFIG_NPTHREAD_KEYS=4
CONFIG_NFILE_DESCRIPTORS=8
CONFIG_NFILE_STREAMS=8
CONFIG_NAME_MAX=32
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_NUNGET_CHARS=2
CONFIG_PREALLOC_MQ_MSGS=4
CONFIG_MQ_MAXMSGSIZE=32
diff --git a/nuttx/configs/z16f2800100zcog/ostest/defconfig b/nuttx/configs/z16f2800100zcog/ostest/defconfig
index 50c3a96c6..d94a52124 100644
--- a/nuttx/configs/z16f2800100zcog/ostest/defconfig
+++ b/nuttx/configs/z16f2800100zcog/ostest/defconfig
@@ -312,7 +312,7 @@ CONFIG_HEAP2_SIZE=0
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/z16f2800100zcog/pashello/defconfig b/nuttx/configs/z16f2800100zcog/pashello/defconfig
index 96bff8dee..30259aa40 100644
--- a/nuttx/configs/z16f2800100zcog/pashello/defconfig
+++ b/nuttx/configs/z16f2800100zcog/pashello/defconfig
@@ -312,7 +312,7 @@ CONFIG_HEAP2_SIZE=0
#
# Library Routines
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/zp214xpa/nsh/defconfig b/nuttx/configs/zp214xpa/nsh/defconfig
index 7f8ddc19b..fe79a4ac4 100644
--- a/nuttx/configs/zp214xpa/nsh/defconfig
+++ b/nuttx/configs/zp214xpa/nsh/defconfig
@@ -337,7 +337,7 @@ CONFIG_MM_REGIONS=1
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"
diff --git a/nuttx/configs/zp214xpa/nxlines/defconfig b/nuttx/configs/zp214xpa/nxlines/defconfig
index 209b4a5e4..ea2fb3906 100644
--- a/nuttx/configs/zp214xpa/nxlines/defconfig
+++ b/nuttx/configs/zp214xpa/nxlines/defconfig
@@ -412,7 +412,7 @@ CONFIG_MM_REGIONS=1
#
# Standard C Library Options
#
-CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_BUFFER_SIZE=64
CONFIG_STDIO_LINEBUFFER=y
CONFIG_NUNGET_CHARS=2
CONFIG_LIB_HOMEDIR="/"