From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Philipp Dreimann <philipp@dreimann.net>
Cc: linux-media@vger.kernel.org
Subject: Re: uvcvideo issue with kernel 3.5-rc2 and 3
Date: Mon, 18 Jun 2012 12:41:59 +0200 [thread overview]
Message-ID: <4704338.LhTThHjxGK@avalon> (raw)
In-Reply-To: <CADYPuQ4eoX-eZNPQE6S2DYQFA-z2UuBNdpUNz4UCVi6GJWHruw@mail.gmail.com>
Hi Philipp,
On Sunday 17 June 2012 13:35:07 Philipp Dreimann wrote:
> Hello,
>
> my external webcam from Logitech (I guess it's a c910) stopped working
> using kernel 3.5-rc3.( 3.4 worked fine.)
>
> uvcvideo: Found UVC 1.00 device <unnamed> (046d:0821)
> input: UVC Camera (046d:0821) as
> /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.2/input/input14
> usbcore: registered new interface driver uvcvideo
> USB Video Class driver (1.1.1)
> uvcvideo: Failed to query (GET_DEF) UVC control 2 on unit 2: -71 (exp. 2).
> uvcvideo: Failed to query (GET_DEF) UVC control 2 on unit 2: -71 (exp. 2).
> uvcvideo: Failed to query (GET_DEF) UVC control 3 on unit 2: -71 (exp. 2).
> uvcvideo: Failed to query (GET_DEF) UVC control 7 on unit 2: -71 (exp. 2).
> uvcvideo: Failed to query (GET_DEF) UVC control 11 on unit 2: -71 (exp. 1).
> uvcvideo: Failed to query (GET_DEF) UVC control 4 on unit 2: -71 (exp. 2).
> uvcvideo: Failed to query (GET_DEF) UVC control 5 on unit 2: -71 (exp. 1).
> uvcvideo: Failed to query (GET_CUR) UVC control 11 on unit 2: -71 (exp. 1).
> uvcvideo: Failed to query (GET_DEF) UVC control 8 on unit 2: -71 (exp. 2).
> uvcvideo: Failed to query (GET_DEF) UVC control 1 on unit 2: -71 (exp. 2).
> uvcvideo: Failed to set UVC probe control : -71 (exp. 26).
> uvcvideo: Failed to set UVC probe control : -71 (exp. 26).
> uvcvideo: Failed to set UVC probe control : -71 (exp. 26).
> uvcvideo: Failed to set UVC probe control : -71 (exp. 26).
> (the last line is being repeated...)
This might be cause by a bug in the USB core or in the UVC driver. Would you
be able to bisect the regression ? Or, alternatively, test the v3.4 uvcvideo
driver on v3.5-rc3 ? Or the other way around, test the latest v4l tree on v3.4
(instructions regarding how to compile the v4l tree with a different kernel
are available at
http://linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-
DVB_Device_Drivers).
> I used cheese to test the webcam. My other webcam is working fine:
> uvcvideo: Found UVC 1.00 device Integrated Camera (04f2:b217)
> input: Integrated Camera as
> /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6/1-1.6:1.0/input/input13
--
Regards,
Laurent Pinchart
next prev parent reply other threads:[~2012-06-18 10:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-17 11:35 uvcvideo issue with kernel 3.5-rc2 and 3 Philipp Dreimann
2012-06-18 10:41 ` Laurent Pinchart [this message]
2012-06-19 20:05 ` Philipp Dreimann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4704338.LhTThHjxGK@avalon \
--to=laurent.pinchart@ideasonboard.com \
--cc=linux-media@vger.kernel.org \
--cc=philipp@dreimann.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox