Vincenzo, that is just a matter of creating the appropriate symlink:
sudo ln -s /dev/ttyS0 /dev/input/wacom
Then restart the X server and now the pen should work - well, until you put the computer in standby.
Vincenzo, that is just a matter of creating the appropriate symlink:
sudo ln -s /dev/ttyS0 /dev/input/wacom
Then restart the X server and now the pen should work - well, until you put the computer in standby.