Adlink CSA-5200 Manual de usuario descargar pdf (Pagina 38)

CSA-5200

* the Watchdog to reset its internal timer so it doesn't trigger

* a computer reset.

static void keep_alive(void)

{

int dummy;

ioctl(fd, WDIOC_KEEPALIVE, &dummy);

}

* The main program. Run the program with "-d" to disable the card,

* or "-e" to enable the card.

int main(int argc, char *argv[])

{

int flags;

if(argc == 2 && !strncasecmp(argv[1], "-h", 2))

{

fprintf(stderr, "wdogfeed options:\n");

fprintf(stderr, "-e<1|0>: Turn on/off the watchdog timer.\n");

fprintf(stderr, "-b<1|0>: Enable/disable the bypass lan.\n");

fprintf(stderr, "-t: Query the watchdog timeout parameter.\n");

fprintf(stderr, "-s: Change the watchdog timeout parameter.\n");

fprintf(stderr, "For example:\n");

fprintf(stderr, "./wdt-test -h // Print the help menu\n");

fprintf(stderr, "./wdt-test -e 0 // Turn off the watchdog timer\n");

fprintf(stderr, "./wdt-test -b 0 // Disable the bypass lan\n");

fprintf(stderr, "./wdt-test -t // Query watchdog timeout period\n");

fprintf(stderr, "./wdt-test -s 10 // Set watchdog timeout period to 10s\n");

fflush(stderr);

exit(0);

}

fd = open("/dev/watchdog", O_WRONLY);

if (fd == -1)

{

fprintf(stderr, "Watchdog device not enabled.\n");

fflush(stderr);

exit(-1);

}

if (argc > 1)

{

if (!strncasecmp(argv[1], "-e", 2))

{

if(!strncasecmp(argv[2], "1", 1))

{

flags = WDIOS_ENABLECARD;

ioctl(fd, WDIOC_SETOPTIONS, &flags);

fprintf(stderr, "Watchdog card enabled.\n");

fflush(stderr);

exit(0);

}

if(!strncasecmp(argv[2], "0", 1))

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Adlink CSA-5200 Manual de usuario Pagina 38

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