linux-kernel - Re: Acecad USB Tablet: usbmouse takeover and odd motion

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Date:	Fri, 20 Apr 2007 10:26:27 +0200
From:	"Giuseppe Bilotta" <giuseppe.bilotta@...il.com>
To:	"Jiri Kosina" <jkosina@...e.cz>
Cc:	linux-kernel@...r.kernel.org, dmitry.torokhov@...il.com,
	edouard.tisserant@...adoo.fr
Subject: Re: Acecad USB Tablet: usbmouse takeover and odd motion

On 4/20/07, Jiri Kosina <jkosina@...e.cz> wrote:
> On Fri, 20 Apr 2007, Giuseppe Bilotta wrote:
>
> > The first problem is that the usbmouse and usbhid drivers take control
> > of the device, so that when I plug it in the tablet appears as a mouse,
> > with extremely funny effects (cursor jumping around, buttons clicking
> > out of nowhere, and other strange stuff).I have to rmmod usbmouse and
> > usbhid and then re-modprobe acecad to get proper data from the tablet
> > (where by 'proper' I mean that input-events reports apparently correct
> > values for X, Y, pressure and keypresses.
>
> Hi Giuseppe,
>
> could you please send me the product ID of the hardware in question? (you
> could get it for example by running lsusb). Currently the usbhid driver
> blacklists just product ids 0x0004 and 0x0008 (so that for these product
> ids, the HID driver doesn't claim the device and lets other driver -
> acecad - to claim it). I guess you have some newer version of the device,
> so just adding it to blacklist should suffice.

Hello Jiri,

lsusb claims:

Bus 002 Device 003: ID 0460:0004 Ace Cad Enterprise Co., Ltd

and according to hid-core.c this *is* a blacklisted ID ...

-- 
Giuseppe "Oblomov" Bilotta
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