2 * Watchdog Driver Test Program
10 #include <sys/ioctl.h>
11 #include <linux/types.h>
12 #include <linux/watchdog.h>
17 * This function simply sends an IOCTL to the driver, which in turn ticks
18 * the PC Watchdog card to reset its internal timer so it doesn't trigger
25 ioctl(fd, WDIOC_KEEPALIVE, &dummy);
29 * The main program. Run the program with "-d" to disable the card,
30 * or "-e" to enable the card.
32 int main(int argc, char *argv[])
34 fd = open("/dev/watchdog", O_WRONLY);
37 fprintf(stderr, "Watchdog device not enabled.\n");
43 if (!strncasecmp(argv[1], "-d", 2)) {
44 ioctl(fd, WDIOC_SETOPTIONS, WDIOS_DISABLECARD);
45 fprintf(stderr, "Watchdog card disabled.\n");
48 } else if (!strncasecmp(argv[1], "-e", 2)) {
49 ioctl(fd, WDIOC_SETOPTIONS, WDIOS_ENABLECARD);
50 fprintf(stderr, "Watchdog card enabled.\n");
54 fprintf(stderr, "-d to disable, -e to enable.\n");
55 fprintf(stderr, "run by itself to tick the card.\n");
60 fprintf(stderr, "Watchdog Ticking Away!\n");