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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2012-02-11 00:32:53 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2012-02-11 00:32:53 +0000
commit24af177eb1a3e7036f8a3ee5342970ddeb151124 (patch)
treecb21dffb332218477b6ad468053c61df6b9d8830 /nuttx/drivers/README.txt
parentd52c77f6349fdb61f27818e2f85a217509f949ce (diff)
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Add a RAM-based logging device
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4379 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/drivers/README.txt')
-rw-r--r--nuttx/drivers/README.txt13
1 files changed, 13 insertions, 0 deletions
diff --git a/nuttx/drivers/README.txt b/nuttx/drivers/README.txt
index e5a1483b2..0cddb9311 100644
--- a/nuttx/drivers/README.txt
+++ b/nuttx/drivers/README.txt
@@ -31,6 +31,19 @@ ramdisk.c
a block driver that can be mounted as a files system. See
include/nuttx/ramdisk.h.
+ramlog.c
+ This is a driver that was intended to support debugging output,
+ aka syslogging, when the normal serial output is not available.
+ For example, if you are using a telnet or USB serial console,
+ the debug output will get lost.
+
+ This driver is similar to a pipe in that it saves the debugging
+ output in a FIFO in RAM. It differs from a pipe in numerous
+ details as needed to support logging.
+
+ This driver is built when CONFIG_RAMLOG is defined in the Nuttx
+ configuration.
+
rwbuffer.c
A facility that can be use by any block driver in-order to add
writing buffering and read-ahead buffering.