linux-kernel - Re: SOLVED support of touchscreen reported as eGalax but is not working

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Message-ID: <20090127020529.4070840b@zork.foo.com>
Date:	Tue, 27 Jan 2009 02:05:29 +0100
From:	Max Weninger <max.weninger@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: SOLVED support of touchscreen reported as eGalax but is not
 working

Hi again

On Tue, 27 Jan 2009 01:48:22 +0100
Max Weninger <max.weninger@...il.com> wrote:

> On Tue, 27 Jan 2009 01:38:06 +0100
> Max Weninger <max.weninger@...il.com> wrote:
> 
> > Hi
> > 
> > On Mon, 26 Jan 2009 13:13:23 +0100
> > Niels de Vos <niels.devos@...cor-nixdorf.com> wrote:
> > 
> > > Max Weninger wrote:
> > > > Niels de Vos <niels.devos@...cor-nixdorf.com> wrote:
> > > >> You can obviously download the drivers from
> > > >> <http://home.eeti.com.tw/web20/TouchKitDriver/linuxDriver.htm>.
> > > >>
> > > >> It would be great if eGalax could be convinced to get these
> > > >> drivers included in main-line ;)
> > > > 
> > > > Thanks for your quick reply
> > > > BUT: I have tried those driver also
> > > > 
> > > > I tried this "brandnew" one (but also older ones)
> > > > http://home.eeti.com.tw/web20/drivers/touch_driver/Linux/2.06.2416/TouchKit-2.06.2410-32b-k26.tar.gz
> > > > after making it compile for 2.6.28.2 :)
> > > > since there is source code delivered
> > > 
> > > For what it's worth; the version we use from eGalax is
> > > 1.0.3.1701. I don't have the hardware here atm, so I can't test
> > > an other driver now.
> > 
> > I tried kernel 2.6.23.17 and there the touchscreen is recognized
> > using the builtin usbtouchscreen driver
> 
> It also works with 2.6.26.8

After comparing the usbtouchscreen.c sources between the different
versions I got it working by commenting the follwoing lines

...
#ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
        /* ignore the HID capable devices, handled by usbhid */
        {USB_DEVICE_HID_CLASS(0x0eef, 0x0001), .driver_info = DEVTYPE_IGNORE},
        {USB_DEVICE_HID_CLASS(0x0eef, 0x0002), .driver_info = DEVTYPE_IGNORE},
...

Now the entry in /proc/bus/input/devices is created as in the
older versions.

So it seems that usbhid is not correctly handling my type
of touchscreen if I understand the comment there correctly

Regards

Max

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