varanus I hope you are able to get your device working. I’m afraid I can not help you as I do not know enough and I have no such device / nor experience.
I was surfing on multi-touch and I note some Fedora users have this working. It appears for Fedora they use a different driver called the evdev (possibly a Fork from ENAC’s driver where the reason for the different evdev driver is noted here. The Fedora evdev driver has its source/tarball here: ~carlosg/xf86-input-evdev - Evdev driver with support for Linux MT protocol.](http://cgit.freedesktop.org/~carlosg/xf86-input-evdev/log/?h=multitouch-subdevs)
Edit : Phoronix also have an article on the evdev driver: http://www.phoronix.com/scan.php?page=news_item&px=ODMxMw
Again, I have not tried this and I have no idea as to how any of this will integrate/work. I just post this as for now this appears to be a good thread to consolidate some of this information until a preferred solution comes out.
In the mean time, I also urge everyone to use their openSUSE forum user name and password and log on to openFate and vote for the feature: https://features.opensuse.org/310758.