Linux非阻塞读取串口数据

最新推荐文章于 2024-07-12 17:21:26 发布

disadministrator

最新推荐文章于 2024-07-12 17:21:26 发布

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分类专栏：嵌入式

本文链接：https://blog.youkuaiyun.com/disadministrator/article/details/78921651

#include <stdio.h>
#include<sys/stat.h>
#include<fcntl.h>
#include <stdlib.h>
char *dev="/dev/ttyUSB0";

int OpenDev(char *Dev)
{
    int fd = open( Dev, O_RDWR | O_NOCTTY | O_NDELAY);         
    if (-1 == fd) { 
        perror("Can't Open Serial Port");
        return -1;
    } else
        return fd;
}

int read_fun(