This ten-finger 3M screen has a kernel driver already (hid-3m-pct), but with a few glitches:
1. The one-touch down/up, which emits BTN_TOUCH events, sometimes does not work properly. This results in buttons getting stuck in the button-down state in the window manager. A somewhat intrusive patch that fixes this problem is attached.
2. The action after touch-up in one spot followed by a touch-down in another spot sometimes causes a sequence of strange finger-tracing events along the perimeter of the rectangle between the two spots. The problem is amplified by how mtdev interprets these events, and changing mtdev papers over some of the effect, but the root problem seems to come from the device via HID. Resolving this issue will require a bit more investigation.
DKMS package can be found in this PPA: https:/