📄 ioctl.c
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#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);}
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