In just quickly thinking about this... if finding a touchscreen driver is a problem, then why not skip it.
What I'm thinking is something along the following lines...
1. Get a touch screen with a serial interface.
2. Install this on to a Winblows PC
3. Watch how the touch screen communicates with the PC by taping into the serial comms either by hardware or software.
4. Create a microcontroller hardware interface that translates touchscreen serial data to Amiga mouse port data. (sort of tricking the Amiga into thinking the mouse is talking to it when it fact the touchscreen is.)
I realize this is quite simplified and there are many considerations such as brand, model, etc of touchscreen (Hey! this is my idea and I reserve the right to brand it with my own silly C= based logo, fight over my copyrights and use another persons artwork to depict the product even if it doesn't look anything like the end product.) (Sorry, just had to get that out of my system.)
On a serious note, I've got some mircocontrollers laying around and a couple of old touchscreens in my storage. I might dig them out and give this a go.
Regards,
AmigaEd
