ioctl.c

来自「Windows设备驱动程序设计 (*.ppt) intoduce about h」· C语言 代码 · 共 28 行

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

main(int agc, char *agr[])
{
int testdev;
if(agc != 2) 
{
	printf("Too more or less paramter.\n");
	exit (0);
}
testdev = open("/dev/testpcidevice",O_RDWR);
if ( testdev == -1 )
{
        printf("Cann't open file \n");
        exit(0);
}
switch(*agr[1] )
{
	case 'i' : {ioctl(testdev,1);break;}
        case 'r' : {ioctl(testdev,2);break;}
	default  : {printf("The paramer is error.\n"); break;}   
}
close(testdev);
}