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

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Message-ID: <497D9469.3030908@wincor-nixdorf.com>
Date:	Mon, 26 Jan 2009 11:46:01 +0100
From:	Niels de Vos <niels.devos@...cor-nixdorf.com>
To:	Max Weninger <max.weninger@...il.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: support of touchscreen reported as eGalax but is not working

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 ;)

Hope that helps,
Niels

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