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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2011-05-14 15:21:04 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2011-05-14 15:21:04 +0000
commitf62084035feaf8b9a22804821b22e2a3c15e6eda (patch)
treee2d1548a5bf0d8e33386a178103c756473b90ad6 /nuttx/configs/README.txt
parent6f8fd8927787deda605f6fb070bab21ee4022084 (diff)
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Implemented line-oriented buffering for std output
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3606 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/README.txt')
-rw-r--r--nuttx/configs/README.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/nuttx/configs/README.txt b/nuttx/configs/README.txt
index 88b368907..50208f210 100644
--- a/nuttx/configs/README.txt
+++ b/nuttx/configs/README.txt
@@ -503,6 +503,13 @@ defconfig -- This is a configuration file similar to the Linux
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_STDIO_LINEBUFFER - If standard C buffered I/O is enabled
+ (CONFIG_STDIO_BUFFER_SIZE > 0), then this option may be added
+ to force automatic, line-oriented flushing the output buffer
+ for printf() fprintf(), and vfprintf(). When a newline is
+ encountered in the format string, the output buffer will be
+ flushed. This (slightly) increases the NuttX footprint but
+ supports the kind of behavior that people expect for printf.
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