dpmd_sys.c

Linux下动态电源管理(Dynamic Power Management)的用户守护进程

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int dpmd_set_policy(char *p)
{
	char policy[512];

	sprintf(policy, "echo set_policy %s > /proc/driver/dpm/cmd", p);
#if 0
	printf("%s\n", policy);
#endif
	system(policy);
	return 0;
}

int dpmd_suspend(void)
{
	system("echo 1 > /proc/sys/pm/suspend");
	return 0;
}