appback.c

来自「个人根据海德汉平面光栅Windows下的程序编写得Linux下的驱动程去源码」· C语言 代码 · 共 71 行

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <linux/ioctl.h>
#include "pciioctl.h"

#define BUFSIZE 70
#define IOCSTART _IO(
int main(int argc,char *argv[])
{	
	int fd;
	int choose,ready;
	int msg=10;
	int ch,letdo,a,c,save,period;
	char mode;
	int check=1;
	letdo=1;
	c=0;
while(letdo){
	ready=1;	
	if(check)
	{
		check=0;
		/* Open PCI_IK device */
		if ((fd = open("/dev/PCI_IK", O_WRONLY))<0) 
		{
			fprintf(stderr, "Error opening /dev/rtf0\n");
			exit(1);
		}
	}
	fprintf(stderr,"set the work mode:r for RUN\ts for stop\te for code set\tg for signal set\tR for reset\t \n");
	scanf("%c",&mode);
	fprintf(stderr,"mode=%c",mode);
	switch(mode)
	{
		case 'r':
			msg=ioctl(fd,IK_IOCSTART,NULL);
			break;
		case 's':
			msg=ioctl(fd,IK_IOCSTOP,NULL);
			break;
		case 'e':
			msg=ioctl(fd,IK_IOCENCODE,0);
			break;
		case 'g':
			msg=ioctl(fd,IK_IOCSIGNAL,0);
			break;
		case 'R':
			msg=ioctl(fd,IK_IOCRESET,NULL);
			break;
		case 'p':
			fprintf(stderr,"input the sampling period (ms)");
			scanf("%d",period);
			msg=ioctl(fd,IK_IOCSETPERIOD,period);
		default:
			break;
	}
		fprintf(stderr,"msg=%d",msg);	

}

	close(fd);
	return 0;

}