I have Debian Etch here with a selfcompiled kernel 188.8.131.52 and the debian xorg 7.1.0 precompiled package.
I always try to avoid propetary stuff, so I used the usbtouchscreen kernel module and the evtouch 0.8.0 X-driver.
However, I was too lazy to compile evtouch myself, so I just slapped the precompiled evtouch_drv.o into /usr/lib/xorg/modules/input/ ..it works..
So, you are the author of calibrator?
Is it possible to make a regular user-program that gets its input direct from the kernel module and send corrected events as mouse events into the X-system?
If so, it would be nice to have a easy callable user-program that calibrates and corrects for unlinearities in the touch-screen.
It seems to me as the Lilliput touch-screen is a bit crappy, therefore the need for a easy way to recalibrate..
Just my .50 nkr