I just uploaded a driver for USB tablets based on the UGTABLET chipset to OS4 depot. At the very least this supports the XP-Pen Deco 01 tablet.
It's based on my previous UCLogic driver code. The code needs some cleanup but is functional.
The driver supports, absolute X / Y positioning, pressure and tilt. And also supports the 8 assignable buttons which are mapped to the F1-F8 function keys by default.
The keys can be configured using environment variables but I intend to improve this in the future. The templates can be created by saving the settings from the GUI (bring that up by typing "ctrl alt u" the they are of the form
UGTablet/keys/1 through 8
each var has the template
<usbkey> <rawkey> <qualifier>
usbkey is the key you want mapped and rawkey and qualifier the values in decimal to map too.
http://os4depot.net/?function=showfil ... driver/input/ugtablet.lha