I wrote a driver for my old pen tablet and used it draw something cute (project is on notabug)
scuti.neocities.org
3 votes c/freepost Posted by scuti — 3 votes, 3 comments — Source

It’s this repo on notabug:
https://notabug.org/scuti/hanvon-linux

Let me know your opinion on the drawing.

1 vote zPlus

I don’t see any drawings/pictures in the repository?

1 vote zPlus

ohhh I see! It’s on the website, not the repository. Sorry…

The sketch of the boy on the right looks nice! Do you have other drawings like that?

Congrats on writing a fully working driver though. That’s not an easy feat. I’m curious, what does a data packet sent from the tablet look like? How were you able to reverse-engineer it?

2 votes scuti

It didn’t send much data to begin with. I recall after I got libusb to pick up the device, I had it show the data it was sending. From there, I moved the pen around and could tell which index of the array represented what (cilck, position, angle, pressure).

https://notabug.org/scuti/hanvon-linux/src/libusb-port/hanvon-libusb.c#L116

edit: I don’t draw much anymore. So no other sketches on my site.