Linux下串口编程之二：读串口和写串口
1，打开串口
/**打开串口，dev 串口设备名， mode 打开方式，**/
int opendev(char *dev,mode_t mode)
{
int fd;
fd = open(dev, mode);
if (-1 == fd){
perror("Can't Open Serial Port");
return -1;
}
else{
fcntl(fd, F_SETFL, FNDELAY);
return fd;
}
}
2，写串口
#define FALSE -1
#define TRUE 0
#define NET_PORT 19988
#define MAX_BUF_SIZE 4096
struct net2net_buf{
int len;
char buf[MAX_BUF_SIZE];
};
#define RSDEV_NAME "/dev/ttyS1"
int main(void)
{
int rsfd = 0;
int nwrite;
char input_buf[64];
rsfd = opendev(RSDEV_NAME,O_RDWR | O_NOCTTY |
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目录结构为：
inc/hello.h
src/hello.c
main/main.c
Makefile
文件内容为：
hello.h:
void hello(char name[]);
hello.c:
#include <stdio.h>
void hello(char name[])
{
printf("Hello %s!\n", name);
}
main.c:
#include <stdio.h>
#include "hello.h"
// The second hello.h should ......
# tar -zxvf mysql-5.0.45.tar.gz -C /usr/src/
# cd /usr/src/mysql-5.0.45
# ./configure --prefix=/usr/local/mysql --with-charset=gbk
--localstatedir=/usr/local/mysql/data
# make
# make install
# groupadd mysql
# useradd mysql -g mysql
# cd /usr/local/mysql/bin
# ./mysql_install_db --user=mys ......
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< src="http://pagead2.googlesyndication.com/pagead/show_ads.js" type="text/javasc ......
1，串口操作需要的头文件
#include <stdio.h> /* 标准输入输出定义 */
#include <stdlib.h> /* 标准函数库定义 */
#include <unistd.h> /* Unix 标准函数定义 */
#include <sys/types.h>
#include <sys/stat.h>
#incl ......
