In fact it doesn't work with Linux that well. Well it isn't usable with Linux at all. I made some progress with udev rules hacking but didn't really got a solution.
Things that worked for me:
Surprisingly I got the hotkeys to work, they are reported as keyboard.
The display is somewhat useable when I load with evdev, but I really would prefer libinput. But evdev doesn't detect pressure sensitivity.
Here are my current udev rules, maybe someone spots what I did wrong.