/* Example Watchdog Driver
 * from /usr/src/linux/Documentation/watchdog.txt
 */

#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>

int main(int argc, const char *argv[])
{
	int fd=open("/dev/watchdog",O_WRONLY);
	if(fd==-1)
	{
		perror("watchdog");
		exit(1);
	}
	while(1)
	{
		write(fd,"\0",1);
		fsync(fd);
		sleep(10);
	}
}