From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Aurel <aurel@gmx.de>
Cc: linux-media@vger.kernel.org
Subject: Re: White Balance Temperature
Date: Sun, 15 Jan 2012 19:01:30 +0100 [thread overview]
Message-ID: <201201151901.31380.laurent.pinchart@ideasonboard.com> (raw)
In-Reply-To: <loom.20120115T110626-849@post.gmane.org>
Hi Aurel,
On Sunday 15 January 2012 11:16:30 Aurel wrote:
> Hi there
>
> my "Live! Cam Socialize HD VF0610", Device ID: 041e:4080, Driver: uvcvideo
> is running perfectly on Fedora 16 Linux, except one thing:
> When I try to switch on "White Balance Temperature, Auto" or just try to
> change "White Balance Temperature" slider I get a failure message and it
> won't work. All other controls, like contrast, gamma, etc. are working.
> "v4l2-ctl -d 1 --set-ctrl=white_balance_temperature_auto=1" produces an
> error message:
> "VIDIOC_S_CTRL: failed: Input/output error
> white_balance_temperature_auto: Input/output error"
>
> As soon as I boot Windows (inside Linux out of a Virtual Box), start the
> camera there and go back to Linux, I am able to adjust and switch on the
> White Balance things in Linux.
> "v4l2-ctl -d 1 --set-ctrl=white_balance_temperature_auto=1" working fine
> after running the camera in Windows.
>
> Everytime I switch off my computer or disconnect the camera, I have to run
> the camera in Windows again, bevor I can adjust White Balance in Linux.
>
> What can I do to get White Balance controls working in Linux, without
> having to run the camera in Windows every time?
> Is there a special command I have to send to the camera for initializing or
> so?
Not that I know of. If you use the stock UVC driver in Windows, without having
installed a custom driver for your device, that's quite unlikely.
Could you dump the value of all controls in Linux before and after booting
Windows ?
--
Regards,
Laurent Pinchart
next prev parent reply other threads:[~2012-01-15 18:01 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-15 10:16 White Balance Temperature Aurel
2012-01-15 18:01 ` Laurent Pinchart [this message]
2012-01-15 20:25 ` Aurel
2012-01-17 10:56 ` Laurent Pinchart
2012-01-17 20:47 ` Aurel
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