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author | Randy Dunlap <rdunlap@xenotime.net> | 2006-05-21 20:58:10 -0700 |
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committer | Wim Van Sebroeck <wim@iguana.be> | 2006-06-28 21:24:11 +0200 |
commit | 56fb9e5346b99bc6b77def79b3739097bc13ea8a (patch) | |
tree | 157e54d73ade3b65018c809a2f4109cdafeec658 /Documentation/watchdog/watchdog-api.txt | |
parent | dfc7bd9c385a888851a2d009ba272099549f98cc (diff) | |
download | linux-56fb9e5346b99bc6b77def79b3739097bc13ea8a.tar.gz linux-56fb9e5346b99bc6b77def79b3739097bc13ea8a.tar.bz2 linux-56fb9e5346b99bc6b77def79b3739097bc13ea8a.zip |
[WATCHDOG] Documentation/watchdog update
Documentation/watchdog/:
Expose example and tool source files in the Documentation/ directory in
their own files instead of being buried (almost hidden) in readme/txt files.
This will make them more visible/usable to users who may need
to use them, to developers who may need to test with them, and
to janitors who would update them if they were more visible.
Also, if any of these possibly should not be in the kernel tree at
all, it will be clearer that they are here and we can discuss if
they should be removed.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'Documentation/watchdog/watchdog-api.txt')
-rw-r--r-- | Documentation/watchdog/watchdog-api.txt | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/Documentation/watchdog/watchdog-api.txt b/Documentation/watchdog/watchdog-api.txt index d738ec25eaa4..958ff3d48be3 100644 --- a/Documentation/watchdog/watchdog-api.txt +++ b/Documentation/watchdog/watchdog-api.txt @@ -34,22 +34,7 @@ activates as soon as /dev/watchdog is opened and will reboot unless the watchdog is pinged within a certain time, this time is called the timeout or margin. The simplest way to ping the watchdog is to write some data to the device. So a very simple watchdog daemon would look -like this: - -#include <stdlib.h> -#include <fcntl.h> - -int main(int argc, const char *argv[]) { - int fd=open("/dev/watchdog",O_WRONLY); - if (fd==-1) { - perror("watchdog"); - exit(1); - } - while(1) { - write(fd, "\0", 1); - sleep(10); - } -} +like this source file: see Documentation/watchdog/src/watchdog-simple.c A more advanced driver could for example check that a HTTP server is still responding before doing the write call to ping the watchdog. |