/*
 * Watchdog Driver Test Program
 */

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <linux/types.h>
#include <linux/watchdog.h>

int fd;
const char v = 'V';

/*
 * This function simply sends an IOCTL to the driver, which in turn ticks
 * the PC Watchdog card to reset its internal timer so it doesn't trigger
 * a computer reset.
 */
static void keep_alive(void)
{
    int dummy;

    printf(".");
    ioctl(fd, WDIOC_KEEPALIVE, &dummy);
}

/*
 * The main program.  Run the program with "-d" to disable the card,
 * or "-e" to enable the card.
 */

static void term(int sig)
{
    int ret = write(fd, &v, 1);

    close(fd);
    if (ret < 0)
	printf("\nStopping watchdog ticks failed (%d)...\n", errno);
    else
	printf("\nStopping watchdog ticks...\n");
    exit(0);
}

int main(int argc, char *argv[])
{
    int flags;
    unsigned int ping_rate = 1;
    int ret;

    setbuf(stdout, NULL);

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

    if (fd == -1) {
	printf("Watchdog device not enabled.\n");
	exit(-1);
    }

    if (argc > 1) {
	if (!strncasecmp(argv[1], "-d", 2)) {
	    flags = WDIOS_DISABLECARD;
	    ioctl(fd, WDIOC_SETOPTIONS, &flags);
	    printf("Watchdog card disabled.\n");
	    goto end;
	} else if (!strncasecmp(argv[1], "-e", 2)) {
	    flags = WDIOS_ENABLECARD;
	    ioctl(fd, WDIOC_SETOPTIONS, &flags);
	    printf("Watchdog card enabled.\n");
	    goto end;
	} else if (!strncasecmp(argv[1], "-t", 2) && argv[2]) {
	    flags = atoi(argv[2]);
	    ioctl(fd, WDIOC_SETTIMEOUT, &flags);
	    printf("Watchdog timeout set to %u seconds.\n", flags);
	    goto end;
	} else if (!strncasecmp(argv[1], "-p", 2) && argv[2]) {
	    ping_rate = strtoul(argv[2], NULL, 0);
	    printf("Watchdog ping rate set to %u seconds.\n", ping_rate);
	} else {
	    printf("-d to disable, -e to enable, -t <n> to set " \
		"the timeout,\n-p <n> to set the ping rate, and \n");
	    printf("run by itself to tick the card.\n");
	    goto end;
	}
    }

    printf("Watchdog Ticking Away!\n");

    signal(SIGINT, term);

    while(1) {
	keep_alive();
	sleep(ping_rate);
    }
end:
    ret = write(fd, &v, 1);
    if (ret < 0)
	printf("Stopping watchdog ticks failed (%d)...\n", errno);
    close(fd);
    return 0;
}
i/linux/net-next.git/log/drivers/usb/serial/io_16654.h'>
<input type='hidden' name='id' value='2883aaea363f7a897ff06d2e6c73ae7aae285bcb'/><input type='hidden' name='id2' value='e26bfebdfc0d212d366de9990a096665d5c0209a'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/diff/?id=2883aaea363f7a897ff06d2e6c73ae7aae285bcb&amp;id2=e26bfebdfc0d212d366de9990a096665d5c0209a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers?id=2883aaea363f7a897ff06d2e6c73ae7aae285bcb&amp;id2=e26bfebdfc0d212d366de9990a096665d5c0209a'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb?id=2883aaea363f7a897ff06d2e6c73ae7aae285bcb&amp;id2=e26bfebdfc0d212d366de9990a096665d5c0209a'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial?id=2883aaea363f7a897ff06d2e6c73ae7aae285bcb&amp;id2=e26bfebdfc0d212d366de9990a096665d5c0209a'>serial</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/serial/io_16654.h?id=2883aaea363f7a897ff06d2e6c73ae7aae285bcb&amp;id2=e26bfebdfc0d212d366de9990a096665d5c0209a'>io_16654.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='2883aaea363f7a897ff06d2e6c73ae7aae285bcb'/><input type='hidden' name='id2' value='e26bfebdfc0d212d366de9990a096665d5c0209a'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=2883aaea363f7a897ff06d2e6c73ae7aae285bcb&amp;id2=e26bfebdfc0d212d366de9990a096665d5c0209a'>Diffstat</a> (limited to 'drivers/usb/serial/io_16654.h')</div><table summary='diffstat' class='diffstat'>