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

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Message-Id: <20090130151836.891f3204.akpm@linux-foundation.org>
Date:	Fri, 30 Jan 2009 15:18:36 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Max Weninger <max.weninger@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Niels de Vos <niels.devos@...cor-nixdorf.com>,
	linux-usb@...r.kernel.org
Subject: Re: SOLVED support of touchscreen reported as eGalax but is not
 working

(cc restored - please jsut do reply-to-all, always)

On Tue, 27 Jan 2009 02:05:29 +0100
Max Weninger <max.weninger@...il.com> wrote:

> 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
> 

So... how do we fix this for real?
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