Hi Igor,

On Wed, Jul 16, 2008 at 08:54:23PM +0400, Igor Zhbanov wrote:

Hello!

I have Samwell Ruggedbook Tablet PC 800:
http://www.ruggedbook.com.tw/product_view.asp?ID=50

It has 4-wire resistive touchscreen controlled by PIC16F819. Microcontroller
has 10-bit ADC and it seems to be connected to PS/2. (I have no idea what
is inside PIC's ROM.) Under Windows device works well with Wacom Tablet PC
and PanJit TouchSet drivers (the later is not proprietary for this device).

Under Linux I can capture events from /dev/input/event2 device. So I
have written
simple program that dumps data in hexadecimal view.

[ skip reverse-engineering effort of Linux event protocol, see
  include/linux/input.h and struct input_event in particular ]

Now is the main question. Is there a driver suitable for this protocol
or it should be written? Have you seen this protocol in another touchscreen
controllers already?

It looks that the device works in PS/2 compatibility mode. There seems
to be a driver on PanJit web site with some crude support, have you
tried it?

-- 
Dmitry