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

const char *dev_path = "/dev/mylp0";

int main(){
  int i, fd;
  char str[3];
  fd = open(dev_path, O_RDWR);
  for(i = 0; i < 20; i++){
    read(fd, str, 3);
    printf("[%d:%d]\n", str[0], str[1]);
    //    usleep(1000);
  }
  close(fd);
}