From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Jeffrin Jose <jeffrin@rajagiritech.edu.in>
Cc: mchehab@kernel.org, linux-media@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PROBLEM] uvcvideo: Failed to query (GET_INFO) UVC control
Date: Mon, 9 Dec 2019 03:18:04 +0200 [thread overview]
Message-ID: <20191209011804.GM14311@pendragon.ideasonboard.com> (raw)
In-Reply-To: <20191207182152.GB5280@debian>
Hello Jeffrin,
On Sat, Dec 07, 2019 at 11:51:52PM +0530, Jeffrin Jose wrote:
> hello,
>
> i get this output piece from "dmesg -l err" of kernel 5.4.2
>
>
> -------------------x---------------------------x------------------
> uvcvideo: Failed to query (GET_INFO) UVC control 6 on unit 1: -32 (exp. 1).
> uvcvideo: Failed to query (GET_INFO) UVC control 7 on unit 1: -32 (exp. 1).
> -------------------x----------------------------x-----------------
>
> Additional information:
> Linux debian 5.4.2 #17 SMP Sat Dec 7 01:39:12 IST 2019 x86_64 GNU/Linux
>
> Relevant file:
> drivers/media/usb/uvc/uvc_video.c
Does the camera otherwise fail to operate correctly ? Was the problem
present in older kernel versions, or did it appear with v5.4.2 ? Are the
above messages output every time you plug the camera (or load the driver
in case the camera is built in), or only randomly ? What is the exact
camera model, and could you please send me the lsusb -v output for it
(running as root if possible) ?
--
Regards,
Laurent Pinchart
next prev parent reply other threads:[~2019-12-09 1:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-07 18:21 [PROBLEM] uvcvideo: Failed to query (GET_INFO) UVC control Jeffrin Jose
2019-12-09 1:18 ` Laurent Pinchart [this message]
2019-12-14 18:04 ` Jeffrin Jose
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