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Commit f15d7114 authored by Timur Tabi's avatar Timur Tabi Committed by Wim Van Sebroeck
Browse files

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: default avatarTimur Tabi <timur@codeaurora.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent c13dcf9f

Documentation/watchdog/src/watchdog-test.c

+17 −5
Original line number Diff line number Diff line
@@ -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);

    }



    signal(SIGINT, term);



    while(1) {

	keep_alive();

	sleep(1);

	sleep(ping_rate);

    }

end:

    close(fd);