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

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Date:	Mon, 26 Jan 2009 12:49:41 +0100
From:	Max Weninger <max.weninger@...il.com>
To:	Niels de Vos <niels.devos@...cor-nixdorf.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: support of touchscreen reported as eGalax but is not working

Hi

On Mon, 26 Jan 2009 11:46:01 +0100
Niels de Vos <niels.devos@...cor-nixdorf.com> wrote:

> Max Weninger wrote:
> > Hi
> > 
> > I recently got a used USB touchscreen and try to get it working
> > It looks like a eGalax type but not really is :-(
> > 
> ...
> > /proc/bus/usb/devices gives
> > 
> > T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 13 Spd=1.5 MxCh= 0
> > D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
> > P:  Vendor=0eef ProdID=0001 Rev= 1.00
> > C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr= 44mA
> > I:* If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
> > E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=5ms
> > 
> > I compared this output to other eGalax and discovered some differences
> > like that iManufactur and iProduct is not filled also
> > bInterfaceSubClass and bInterfaceProtocol
> 
> Looks like a touchscreen which is supported by a closed(?) source driver
> of eGalax we have here too:
> $ /sbin/modinfo tkusb.ko 
> filename:       tkusb.ko
> license:        GPL
> description:    USB TouchScreen Driver
> author:         eGalax Inc. http://www.egalax.com.tw
> srcversion:     B0872D8913B07BF5665B5BA
> alias:          usb:v3823p0001d*dc*dsc*dp*ic*isc*ip*
> alias:          usb:v0EEFp0002d*dc*dsc*dp*ic*isc*ip*
> alias:          usb:v0EEFp0001d*dc*dsc*dp*ic*isc*ip*
> alias:          usb:v1234p0002d*dc*dsc*dp*ic*isc*ip*
> alias:          usb:v1234p0001d*dc*dsc*dp*ic*isc*ip*
> depends:        usbcore
> vermagic:       2.6.17-8.wn mod_unload 686 REGPARM 4KSTACKS gcc-4.0
> 
> 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

If I didnt make any error I get exactly the same error
maybe I did some error in the configuration but
it loads the tkusb kernel module instead of the usbtoucscreen
(which I added to the module blacklist) when plugin the screen
so I think I did it right :)

So maybe the problem is that the kernel is just too new 
and some other changes broke the support :)
So I will try with the kernel you are using
(2.6.17-8) to make sure

Regards

max



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