Hello, I'm using ROS with Eclipse and I'm trying to get the serial port to work so I can send commands to a robot platform. I'm new to C++ so that might be a problem. The code compiles ok, but the problem is when I write to the serial port what I wanted to write doesn't get written. However when I set a breakpoint at this line: cnt = write(port,&this->packet[byteNum],1); in src/packet.cpp and run each time it stops, the serial port writes the correct data in the buffer. My code is posted on: http://code.google.com/p/txt-ros/source/browse/ Any help would be appreciated. Thanks, Titus