Re: ucb1400 and mouse emulation

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

Hi Pavel

On Mon, Oct 05, 2009 at 02:34:09PM +0200, Pavel Revak wrote:
> Hello, I upgraded to new kernel 2.6.31 (from 2.6.29) and I use
> touchscreen with ucb1400 through library "tslib" which has own
> calibration. from 2.6.30+ kernels this touchscreen emulate a mouse
> (with out tslib) but is uncalibrated.

This should not have changed, mousedev emulation was there for ages.

> My application use SDL with
> framebuffer (no X server) and read mouse and touchscreen
> simultaneously. But now it is unusable whne I use touchscreen, because
> I read now touch screen as generic mouse (uncalibrated) and as tslib
> (calibrated) at same time . Exist any way to calibrate touchscreen
> without X server or tslib for sdl applications (this is preferred to
> me) ? or can I disable mouse emulation from touchscreen and use only
> tslib for sdl apps ?
>

The application has to decide what interface it wishes to use (mousedev
or evdev) and read from that interface only.

-- 
Dmitry