buttontest.c

来自「arm2440下」· C语言 代码 · 共 51 行

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <pthread.h>

/*
void thread(void)
{
	while(1)
	{
		printf("I am still running\n");
		sleep(1);
	}
}
*/
int main()
{
	int fd;
	pthread_t id;
	int ret;
	unsigned int new;
	int count = 0;
	fd = open("/dev/button",O_RDWR);
	if(fd < 0)
	{
		//printf("open exint10 error \n");
		printf("open exint0 error \n");
		return -1;
	}
	else
	{
		printf("open sussssssssssssssss\n");
	}
//	ret = pthread_create(&id,NULL,(void*)thread,NULL);
	while(1)
	{
		
		read(fd,&new,sizeof(new));
		printf("new==========%d\n",new);
		sleep(1);
	}
	close(fd);
	return 0;
}