Why my touch screen can not work?

[Leo]

Dear Peter:
    I attach my evtest&&xev log.  it seems to work ok.
But there's something intersting, I just repeat operation on the different
place of touch screen.
Evtest can distinguish the position, you can have a look at the log, the ABS
coordinate keep changing,
While XEV I run on my device, this test seems not as what we want,  it can
distinguish the BTN_PRESS && BTN_RELEASE or
motion, but the position never changed.

   I guess there's some place to transform the event as user want in Xorg.
evtest may read from the /dev/input/event3 directly, it's ok. But XEV Which
may depends on X11's transformation, so appears the different situation.

    Please give some hints, thanks [?]

BTW: I can not open the LINK [?]
http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
Is there any other website ?




2010/11/18 Peter Hutterer <peter.hutterer at who-t.net>

> On Wed, Nov 17, 2010 at 09:34:49AM +0800, Leo wrote:
> > I prepare to port Meego(Linux based) to my devkit8000, follow the porting
> > guide
> > http://wiki.meego.com/ARM/Meego_on_B...d_from_scratch<
> http://wiki.meego.com/ARM/Meego_on_Beagleboard_from_scratch>
> > everything seems ok: show the home screen, launch the application,
> > But there's problem about touch screen. Meego can not recognize my
> behavior.
> > I'm not sure it's related with Xorg or driver. Here is my Xorg log:
> >
> > 59.837] (II) config/udev: Adding input device ADS7846 Touchscreen
> (/dev/i)
> > [ 59.837] (**) ADS7846 Touchscreen: Applying InputClass "default"
> > [ 59.841] (**) ADS7846 Touchscreen: Applying InputClass "evdev
> touchscreen "
> > [ 59.842] (**) ADS7846 Touchscreen: always reports core events
> > [ 59.842] (**) ADS7846 Touchscreen: Device: "/dev/input/event3"
> > [ 59.842] (--) ADS7846 Touchscreen: Found absolute axes
> > [ 59.842] (--) ADS7846 Touchscreen: Found x and y absolute axes
> > [ 59.842] (--) ADS7846 Touchscreen: Found absolute touchscreen
> > [ 59.843] (II) ADS7846 Touchscreen: Configuring as touchscreen
> > [ 59.843] (**) ADS7846 Touchscreen: YAxisMapping: buttons 4 and 5
> > [ 59.843] (**) ADS7846 Touchscreen: EmulateWheelButton: 4,
> EmulateWheelIner0
> > [ 59.845] (II) XINPUT: Adding extended input device "ADS7846 Touchscreen"
> ()
> > [ 59.851] (II) ADS7846 Touchscreen: initialized for absolute axes.
> > [ 59.854] (II) config/udev: Adding input device ADS7846 Touchscreen
> (/dev/i)
> > [ 59.854] (**) ADS7846 Touchscreen: Applying InputClass "default"
> > [ 59.855] (**) ADS7846 Touchscreen: always reports core events
> > [ 59.855] (**) ADS7846 Touchscreen: Device: "/dev/input/mouse0"
> > [ 59.855] (EE) ioctl EVIOCGNAME failed: Inappropriate ioctl for device
> > [ 59.856] (II) UnloadModule: "evdev"
> > [ 59.856] (EE) PreInit returned NULL for "ADS7846 Touchscreen"
> > [ 60.102] (NI) OMAPFBSaveScreen: Dim backlight?
> >
> > who has the experience about these kind of problem, pls talk to me!
> > thanks very much
>
> does it work at all? do you see events come out of the device when you run
> evtest against it?
>
> as for the error message:
> http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
>
> Cheers,
>   Peter
>
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