I have a car computer project in progress and use an eGalax touchscreen in the dashboard. It is almost the working perfectly in Ubuntu 8.04. I followed these great instructions from the eee user forums on how to get it configured.

http://forum.eeeuser.com/viewtopic.php?pid=363668

My problem is that in the /etc/X11/xorg.conf entry, an event number must be specified and that number changes every reboot. Sometimes it is event5 or event3 or some other number.

Is there a way to stop the event number from changing?

So far I have found something on udev, but the more I read about it, the less it seems like the correct answer.