On Fri, Dec 19, 2008 at 2:30 PM, Gary R. Van Sickle wrote: >> From: Alex Martin >> >> Hello, >> >> I have a cygwin environment, running some software I am >> writing to talk to some serial devices. >> >> Somehow, trying to debug why I could not see printf output to >> console, I ran a serial port sniffer and voila all of my >> printf commands are writing on the serial port. >> > > I can't say that it would cross my mind to look for my missing printf output > on a serial port, even if I was using a serial port in other parts of the > program to talk to something. Whatever it was that gave you the hunch to do > that is probably at the core of your problem.
My slightly wild guess is that you do an open() on the serial device without a controlling terminal and without passing the O_NOCTTY flag, causing the serial device to become your controlling terminal. ~Matt -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/