Re: Getting touchscreen to work on Fujitsu B6210

[Dmitry Torokhov <dtor@insightbb.com>]

On Thursday 05 April 2007 16:36, Stephen Hemminger wrote:
> On Wed, 4 Apr 2007 01:16:57 -0400
> Dmitry Torokhov <dtor@insightbb.com> wrote:
> 
> > Hi Stephen,
> > 
> > On Thursday 22 February 2007 01:16, Stephen Hemminger wrote:
> > > I did a little investigation and the touchscreen on B6210 is
> > > attached via the 8250 serial port. I tried enabling it with
> > > inputattach but seem to get garbage.
> > > 
> > > I can extract the initialization code from the evtouch driver
> > > to a usermode program and read information from /dev/ttyS0.
> > > 
> > > The lifebook psmouse extension won't work because it tries
> > > to grab the 8042 (touchpad) rather than the touch screen.
> > > 
> > > Ideas?
> > > 
> > 
> > Please try the patch below. You will need to load 8250_pnp,
> > serport and fujitsu_ts modules, then do
> > 
> >         inputattach -fjt /dev/ttyS0
> >
> 
> inputattach runs (then waits). Data is arriving when I touch
> the screen. Now what?

Could ypou please load evbug module or run evtest utility and
verify that the driver produces reasonable events?

> Do I need an Xorg driver for it? 

Mousedev (i.e. /dev/input/{mouseX|mice} will provide crude
emulation of normal mouse; there is evtouch X driver that
should work better. You may also try evdev X driver from
recent releases of x.org; as far as I know they want it to
supesede evtouch eventually.

There are also solutions based on tslib library that allows
touchscreen calibrating, etc. but I am not familiar with it
so I am CCing Richard Purdie.

-- 
Dmitry