Hi, I have a strang proglem any help will be appriciated I have s program sending data VIA serial port between 2 machines. The program works fine when both are Linux. I use cygwin to port the program to windows (I run the program under Dos shell not Cygwin) and I have problem with the port setup part, the program cannot set the serial port parameters (speed, data bits etc). When I disable the port setup part and use mode to set the port parameters the program works fine. Does any one has code example (in C, C++) that does the work? I'm using termios tcsetattr. Thanks. Arik -- 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/