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

void main(void){

	int fd;

	char *hello_node = "/dev/hello_ctl123";

    if((fd = open(hello_node, O_RDWR | O_NDELAY)) < 0){
      printf("APP open %s failed", hello_node);
    }else{
      printf("APP open %s success", hello_node);
      ioctl(fd, 1, 6);
    }
close(fd);
}