What does this statement do:
tcflush(fd,TCIOFLUSH);
Are you sure you are not flushing stuff away, that you should keep ?
Having the Arduino code would also be helpfull.
What does this statement do:
tcflush(fd,TCIOFLUSH);
Are you sure you are not flushing stuff away, that you should keep ?
Having the Arduino code would also be helpfull.