Baud Rate Detector

get_baudrate.c

#include <termios.h>
#include <unistd.h>
#include <stdio.h>

// Author: clacke
// Ref: http://unix.stackexchange.com/questions/72979/how-does-cat-know-the-baud-rate-of-the-serial-port

// do a lookup for the value returned in termbits.h

int main() {
  struct termios tios;
  tcgetattr(0, &tios);
  speed_t ispeed = cfgetispeed(&tios);
  speed_t ospeed = cfgetospeed(&tios);
  printf("baud rate in: 0%x\n", ispeed);
  printf("baud rate out: 0%x\n", ospeed);
  return 0;
}