diff options
author | Timur Tabi <timur@codeaurora.org> | 2015-06-29 11:46:17 -0500 |
---|---|---|
committer | Wim Van Sebroeck <wim@iguana.be> | 2015-09-09 21:33:36 +0200 |
commit | f15d7114bbdd594f1d8b644a44f647d2b6e9772e (patch) | |
tree | 85b2543dbe2e04d13b87bdd523bd5cdb1b9df3a8 /Documentation | |
parent | c13dcf9f2d6f5f06ef1bf79ec456df614c5e058b (diff) | |
download | linux-f15d7114bbdd594f1d8b644a44f647d2b6e9772e.tar.gz linux-f15d7114bbdd594f1d8b644a44f647d2b6e9772e.tar.bz2 linux-f15d7114bbdd594f1d8b644a44f647d2b6e9772e.zip |
Documentation/watchdog: add timeout and ping rate control to watchdog-test.c
The watchdog test program is much more useful if it can configure the
timeout value and ping rate. This will allow you to test actual timeouts.
Adds the -t parameter to set the timeout value (in seconds), and -p to set
the ping rate (number of seconds between pings).
Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/watchdog/src/watchdog-test.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/Documentation/watchdog/src/watchdog-test.c b/Documentation/watchdog/src/watchdog-test.c index 3da822967ee0..fcdde8fc98be 100644 --- a/Documentation/watchdog/src/watchdog-test.c +++ b/Documentation/watchdog/src/watchdog-test.c @@ -41,6 +41,7 @@ static void term(int sig) int main(int argc, char *argv[]) { int flags; + unsigned int ping_rate = 1; fd = open("/dev/watchdog", O_WRONLY); @@ -63,22 +64,33 @@ int main(int argc, char *argv[]) fprintf(stderr, "Watchdog card enabled.\n"); fflush(stderr); goto end; + } else if (!strncasecmp(argv[1], "-t", 2) && argv[2]) { + flags = atoi(argv[2]); + ioctl(fd, WDIOC_SETTIMEOUT, &flags); + fprintf(stderr, "Watchdog timeout set to %u seconds.\n", flags); + fflush(stderr); + goto end; + } else if (!strncasecmp(argv[1], "-p", 2) && argv[2]) { + ping_rate = strtoul(argv[2], NULL, 0); + fprintf(stderr, "Watchdog ping rate set to %u seconds.\n", ping_rate); + fflush(stderr); } else { - fprintf(stderr, "-d to disable, -e to enable.\n"); + fprintf(stderr, "-d to disable, -e to enable, -t <n> to set " \ + "the timeout,\n-p <n> to set the ping rate, and \n"); fprintf(stderr, "run by itself to tick the card.\n"); fflush(stderr); goto end; } - } else { - fprintf(stderr, "Watchdog Ticking Away!\n"); - fflush(stderr); } + fprintf(stderr, "Watchdog Ticking Away!\n"); + fflush(stderr); + signal(SIGINT, term); while(1) { keep_alive(); - sleep(1); + sleep(ping_rate); } end: close(fd); |