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Add logic to re-direct debug output to a sysloggin device

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4381 42af7a65-404d-4744-a932-0658087f49c3
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patacongo 2012-02-11 14:20:40 +00:00
parent 93cf0f6ed5
commit 7513263914
1 changed files with 26 additions and 0 deletions
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26
configs/README.txt
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@ -357,6 +357,32 @@ defconfig -- This is a configuration file similar to the Linux
CONFIG_SIG_SIGWORK - The signal number that will be used to wake-up
the worker thread. Default: 4
System Logging:
CONFIG_SYSLOG enables general system logging support.
At present, the only system loggin device is a circular buffer in RAM.
If CONFIG_SYSLOG is selected, then these options are also available.
CONFIG_RAMLOG - Enables the RAM logging feature
CONFIG_RAMLOG_CONSOLE - Use the RAM logging device as a system console.
If this feature is enabled (along with CONFIG_DEV_CONSOLE), then all
console output will be re-directed to a circular buffer in RAM. This
is useful, for example, if the only console is a Telnet console. Then
in that case, console output from non-Telnet threads will go to the
circular buffer and can be viewed using the NSH 'dmesg' command.
CONFIG_RAMLOG_SYSLOG - Use the RAM logging device for the syslogging
interface. If this feature is enabled (along with CONFIG_SYSLOG),
then all debug output (only) will be re-directed to the circular
buffer in RAM. This RAM log can be view from NSH using the 'dmesg'
command.
CONFIG_RAMLOG_NPOLLWAITERS - The number of threads than can be waiting
for this driver on poll(). Default: 4
If CONFIG_RAMLOG_CONSOLE or CONFIG_RAMLOG_SYSLOG is selected, then the
following may also be provided:
CONFIG_RAMLOG_CONSOLE_BUFSIZE - Size of the console RAM log. Default: 1024
Kernel build options:
CONFIG_NUTTX_KERNEL - Builds NuttX as a separately compiled kernel.
CONFIG_SYS_RESERVED - Reserved system call values for use