I'm using the new 0.8.1 version with an ASUS R1F and Ubuntu 8.04. (2.6.24-19-generic) I've got it working except for one major flaw. The pressure value that gets sent to X is interpreted as signed for some reason. This is problematic because positive pressure values count as a click, and non-positive count as a release, so it's difficult to sustain strokes.
when the pen is neutral, the wacdump reads:
PRESSURE=+00000 (+00000 .. +00255)
When the pen is pressed gently, it reads:
PRESSURE=+ positive values up to 127
As I continue to press harder, it reads negative values, starting at -128, and up to -1 for maximum pressure.
The crossover point seems consistent with where X "releases" a stroke.
Please give advise to troubleshoot or patch.