wdt_test.c

linux 看门狗程序

#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/ioctl.h>

#include <asm/types.h>
#include "watchdog.h"


/*******************************************************************/
int main(int argc,const char * argv[])
{
  	int fd,timeoutvalue;
	int c;
  	printf("Enable watchdog\n");
  	fd=watchdog_enable();

	watchdog_get_timeout(&timeoutvalue);
  	printf("Get watchdog timeout =>%d second\n",timeoutvalue);

  	watchdog_set_timeout(10);
  	printf("Set watchdog new timeout => 10 seconds\n");
	
	for(;;){
		printf("Press any key to feed watchdog, else to reboot after 10 seconds\n");
		c=getchar();
		if(c==27)break;
		watchdog_feed();   	
	}
	printf("\nDisable watchdog\n");
	watchdog_disable(); 	
}