#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <termios.h>
void main()
{
struct termios opt;
int tty;
int len;
int i;
unsigned char data[1024] = {'a','b','c','d','e','f','g','h','i','j'};
printf("log.anycle.com");
printf("\n");
tty = open("/dev/ttyUSB0", O_RDWR );
if (tcgetattr(tty, &opt)< 0) {
printf(" get error\n");
}
cfsetispeed(&opt, B115200);
cfsetospeed(&opt, B115200);
cfmakeraw(&opt);
if (tcsetattr(tty, TCSANOW, &opt)<0) {
printf(" set error\n");
}
write(tty, data, 10);
while( (len = read(tty, data, 1024)) <= 0){
usleep(50);
}
printf(" %d\n", len);
for(i=0;i<len;i++){
printf(" %02x", data[i]);
}
printf(" \n");
close(tty);
}