linux 下利用tty 发送PTZ CMD的测试程式

#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> #include <fcntl.h> /*文件控制定义*/ #include <termios.h> /*PPSIX 终端控制定义*/ #include <errno.h> /*错误号定义*/ //up /**# ./tty1 w //down /**# ./tty1 s //left /**# ./tty1 a //right /**# ./tty1 d //stop /**# ./tty1 q int main(int argc,char *argv[]) { unsigned char cmd485[5][7]={{0xFF,0x01,0x00,0x10,0x2F,0x2F,0x6F}, {0xFF,0x01,0x00,0x08,0x2F,0x2F,0x67}, {0xFF,0x01,0x00,0x04,0x2F,0x2F,0x63}, {0xFF,0x01,0x00,0x02,0x2F,0x2F,0x61}, {0xFF,0x01,0x00,0x00,0x00,0x00,0x01}}; //up,down,left,right,stop int fd; fd=open("/dev/ttyS2",O_RDWR); if(fd<0) exit(1); switch(*argv[1]) { case 'w': //up write(fd,cmd485[0],8); break; case 's': //down write(fd,cmd485[1],8); break; case 'a': //left write(fd,cmd485[2],8); break; case 'd': //right write(fd,cmd485[3],8); break; case 'q': write(fd,cmd485[4],8); break; default: ; } return 0; }