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Date: Sat, 31 Jan 2009 23:09:01 +0100
From: Max Weninger <max.weninger@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
       Niels de Vos <niels.devos@wincor-nixdorf.com>,
       linux-usb@vger.kernel.org
Subject: Re: SOLVED support of touchscreen reported as eGalax but is not
 working
Message-ID: <20090131230901.13e2058e@vostro.foo.com>
In-Reply-To: <20090130151836.891f3204.akpm@linux-foundation.org>
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	<20090127013806.5e31199f@zork.foo.com>
	<20090127014822.780ecb90@zork.foo.com>
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	<20090130151836.891f3204.akpm@linux-foundation.org>
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Hi to all

On Fri, 30 Jan 2009 15:18:36 -0800
Andrew Morton <akpm@linux-foundation.org> wrote:

> (cc restored - please jsut do reply-to-all, always)
> 
> On Tue, 27 Jan 2009 02:05:29 +0100
> Max Weninger <max.weninger@gmail.com> wrote:
> 
> > Hi again
> > 
> > On Tue, 27 Jan 2009 01:48:22 +0100
> > Max Weninger <max.weninger@gmail.com> wrote:
> > 
> > > On Tue, 27 Jan 2009 01:38:06 +0100
> > > Max Weninger <max.weninger@gmail.com> wrote:
> > > 
> > > > Hi
> > > > 
> > > > On Mon, 26 Jan 2009 13:13:23 +0100
> > > > Niels de Vos <niels.devos@wincor-nixdorf.com> wrote:
> > > > 
> > > > > Max Weninger wrote:
> > > > > > Niels de Vos <niels.devos@wincor-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
> > 
> 
> So... how do we fix this for real?

Well I am really not an expert in kernel programming :-)
I found out that these lines where added based on this thread from 2008

http://kerneltrap.org/mailarchive/linux-kernel/2008/6/28/2286264/thread

So all I can do is to provide any help in testing if needed

Regards

Max


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