The Digital Arts & Crafts Studio from Fisher-Price is a USB-based drawing tablet-with-buttons. It comes with proprietary software for Windows. I'd like to get it working with Tux Paint, an Open Source drawing program for kids, for Linux, Windows and Mac OS X.
I'm currently trying to use libusb, a userland library for talking to USB devices. I'm doing development under Linux, but the library supports Windows and Mac, so adding this capability to Tux Paint should also be cross-platform!
November 8, 2007 — I'm as far as finding and opening the device, but seem to fail when trying to read input via interrupts. I'm very new at USB and libusb. My initial attempt was with libhid, but people tell me this device is so simple, that libhid is overkill and using libusb should be plenty.
If you can help, find me (usually "kendwork") on the "#tux4kids" IRC channel on irc.freenode.net, or email me at: firstname.lastname@example.org, or post a message to the "tuxpaint-devel" mailing list.
With a baby and a full-time job, I usually have time to play with this device on my train trips to and from work, on Tuesdays and Thursdays, ~7am-10am and ~7pm-10pm, Pacific time. (Currently PST, so -0800 off UTC.)