> Not sure why it fails with the dtyU0 device. Maybe because the tests where done using "cat /dev/dtyU0" throughout this thread. cat(1) itself buffers, defeating any "stty raw" games to unbuffer the the device. You need to use "cat -u" when testing with cat(1). (I also suggest "-v" in order to not mess up the terminal with control codes.)
Martin Neitzel
