Function doReadByte

gpio/gpio.c:667–682

 */

static void doReadByte (int argc, char *argv [], int printHex)
{
  int val ;

  if (argc != 2)
  {
    fprintf (stderr, "Usage: %s rbx|rbd\n", argv [0]) ;
    exit (1) ;
  }

  val = digitalReadByte () ;
  if (printHex)
    printf ("%02X\n", val) ;
  else
    printf ("%d\n", val) ;
}


/*