Erik Grootjans wrote: > Thanks > > But i m only in the first stage --> configuring as root > and at this moment even that does not work. > (as root im owner of the device - so rights must not be a problem, i > guess > > The next step is then to get it working as an user. > > Erik > Another thing to check - if the kernel actually detected those ports... having dev nodes laying around but not attached to anything is not out of the question. # dmesg | grep tty That should do the trick for detection... whether or not the uart is properly supported can be checked by examining the output of: # cat /proc/tty/driver/serial - Gareth