Bug 205261

Summary:	KERNEL: Proper Handling of ISDV4 wacom tablets built into newer TABLET PCS (USB)
Product:	Gentoo Linux	Reporter:	Matt Whitton <farthom>
Component:	[OLD] Core system	Assignee:	Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel>
Status:	RESOLVED UPSTREAM
Severity:	enhancement
Priority:	Lowest
Version:	2007.0
Hardware:	x86
OS:	Linux
URL:	http://sourceforge.net/tracker/index.php?func=detail&aid=1593330&group_id=69596&atid=525127
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	Full lsusb -v output dmesg output. Gathered right after boot. dmesg output, gathered immediately after running "rmmod wacom && modprobe wacom"

Description Matt Whitton 2008-01-10 23:51:00 UTC

Some newer tablet PCs use a different flavor of Wacom tablet using the "ISDV4" protocol. The current Wacom Kernel module does not seem to behave correctly with this device. No device nodes are generated, and no entry for the tablet can be found in /proc/bus/usb/devices. If the module is disabled, then an entry can be found here, but then it also says "Driver=(none)". Obviously in both cases no device nodes are generated, and the device does not function. 

Related Forum Post:
http://forums.gentoo.org/viewtopic-t-638402.html

Comment 1 Jakub Moc (RETIRED) gentoo-dev

2008-01-10 23:59:14 UTC

May I ask why is this a Gentoo-specific issue? Because we don't develop kernel, we are just shipping it.

Comment 2 Daniel Drake (RETIRED) gentoo-dev

2008-01-24 18:00:52 UTC

Please post "lsusb -v" output for this device

Comment 3 Matt Whitton 2008-01-26 20:20:51 UTC

Created attachment 141839 [details]
Full lsusb -v output

Comment 4 Mike Pagano gentoo-dev

2008-02-01 23:13:47 UTC

Can you attach the output of dmesg?

Comment 5 Sebastian Kromp 2008-02-07 23:09:43 UTC

It seems that this tablet is totally unsupported for now and no patches exist to fix that, but Ping Cheng from the linux wacom project is aware of this and will work on it soon,  you can see it at
http://sourceforge.net/tracker/index.php?func=detail&aid=1593330&group_id=69596&atid=525127

Comment 6 Matt Whitton 2008-02-08 00:07:32 UTC

Created attachment 142945 [details]
dmesg output. Gathered right after boot.

Comment 7 Matt Whitton 2008-02-08 00:08:22 UTC

Created attachment 142946 [details]
dmesg output, gathered immediately after running "rmmod wacom && modprobe wacom"

Comment 8 Daniel Drake (RETIRED) gentoo-dev

2008-02-08 12:40:41 UTC

Thanks Sebastian. Matt, I suggest you keep an eye on the sourceforge bug, and when patches become available feel free to reopen this one (provided that it appears the patches are going upstream through the wacom project).