[CentOS] Logitech cordless desktop ex 90

Anyone using ex 90?
I have it running, no problem. Only mouse was little tricky, namely in X.
But jut a little change in xorg.conf and everything works fine (CO 5.1 desktop
install with vanilla kernel).
Now would like to get keyboards extra buttons in use. Question is, anyone 
configured it allready, or do I have to invent wheel? again :D

Jarmo