I am trying to port a C/C++ program (for a USB-serial device) from Linux (ubuntu) to Cygwin. The device works fine on the Windows (XP) PC (that has Cygwin installed) in the sense that it shows up as COM7 in the Windows device manager and I can talk to it using a terminal program. But in Cygwin I don't see COM7 under /dev/. Am I missing a driver for Cygwin? Please help! Thank you!