Linux下键盘值 对应input_evnet的code值。

//文件名sim_ctrl.c

#include<stdio.h>

#include<stdlib.h>

#include<string.h>

#include<unistd.h>

#include<linux/input.h>

#include<fcntl.h>

#include<sys/time.h>

char * kbd_dev="/dev/input/event7";//可能不是event7,要使用cat /proc/bus/input/devices| grep kbd 查看

int  Ctrl(int kval)

{

    int fd = -;

    fd = open(kbd_dev, O_RDWR);

    if(fd <= )

    {

                printf("Can not open mouse input file\n");

                return -;

      }

      struct input_event event;

      //control down

      gettimeofday(&event.time, );

      event.type = EV_KEY;

      event.value = ;

      event.code = ;

      write(fd, &event, sizeof(event));

      //key down

      gettimeofday(&event.time, );

      event.type = EV_KEY;

      event.value = ;

      event.code = kval;

      write(fd, &event, sizeof(event));

    //key up

      gettimeofday(&event.time, );

      event.type = EV_KEY;

      event.value = ;

      event.code = kval;

      write(fd, &event, sizeof(event));

      //control up

      gettimeofday(&event.time, );

      event.type = EV_KEY;

      event.value = ;

      event.code = ;

      write(fd, &event, sizeof(event));

      //syn

      gettimeofday(&event.time, );

      event.type = EV_SYN;

      event.value = ;

      event.code = SYN_REPORT;

      write(fd, &event, sizeof(event));

      close(fd);

      return ;

}

int main()

{

    sleep();

    //模拟Ctrl+C

    Ctrl();//c的键值为44

}