linux-kernel - Re: BUG: unable to handle kernel paging request at f8dbf000 "isight

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Message-ID: <dd18b0c30806081723y77f5038fm427b020d3723706a@mail.gmail.com>
Date:	Mon, 9 Jun 2008 00:23:48 +0000
From:	"Justin Mattock" <justinmattock@...il.com>
To:	"Matthew Garrett" <mjg59@...f.ucam.org>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: BUG: unable to handle kernel paging request at f8dbf000 "isight_firmware"

On Sun, Jun 8, 2008 at 11:11 PM, Matthew Garrett <mjg59@...f.ucam.org> wrote:
> On Sun, Jun 08, 2008 at 06:51:42PM +0000, Justin Mattock wrote:
>
>> Now on to the status with isight firmware, It seems The two modules
>> are loading uvcvideo and isight_firmware, but there not talking with
>> each other upon booting,
>
> I'm not quite sure I understand. They don't talk to each other as such -
> the firmware driver loads the firmware, at which point the isight will
> disconnect and reappear with a new USB id. uvcvideo should then be able
> to bind. What are you actually seeing?
>
> --
> Matthew Garrett | mjg59@...f.ucam.org
>

There not binding, or uvcvideo is not binding,
under dmesg I see:
when not binding:
[   14.971002] firmware: requesting isight.fw
[   15.183152] usbcore: registered new interface driver isight_firmware

[   16.849152] usbcore: registered new interface driver uvcvideo

when binded:

[   15.319330] firmware: requesting isight.fw
[   15.433080] usbcore: registered new interface driver isight_firmware

[   16.810149] usbcore: registered new interface driver uvcvideo
[   17.810745] uvcvideo: Found UVC 1.00 device Built-in iSight (05ac:8501)
[   17.819252] uvcvideo: Failed to query (135) UVC control 1 (unit 0)
: -32 (exp. 26).

I've noticed the not binding more than binding. Usually I have to
start the system and remove the two modules, and then modprobe the two
 then a reboot to have a proper load or binding of the two. Keep in
mind I am using a uvcvideo module that is a few weeks old, so maybe
this
is whats causing this.
regards;
-- 
Justin P. Mattock
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