Hi, this should be now fix in git.
You just need to set debug to 0 in /lib/udev/uvcdynctrl,
another option if you want to keep the debug messages is to rotate the log file.

Regards,
Paulo

2013/12/25 Daniel Pocock <dan...@pocock.com.au>:
> Package: uvcdynctrl
> Version: 0.2.2-1
>
>
>
> I discovered /var filled up after connecting a Logitech B990 webcam
>
> This log file had appeared and grown to several gigabytes very quickly:
>
>    /var/log/uvcdynctrl-udev.log
>
> with the message below repeated many times.
>
> fuser tells me that this process is responsible for the ballooning logfile:
>
>   uvcdynctrl -d /dev/video0 --addctrl=046d:0828
>
>
>
> [libwebcam] Warning: The driver behind device video0 has a slightly
> buggy implementation
>   of the V4L2_CTRL_FLAG_NEXT_CTRL flag. It does not return the next higher
>   control ID if a control query fails. A workaround has been enabled.
> [libwebcam] Warning: The driver behind device video0 has a slightly
> buggy implementation
>   of the V4L2_CTRL_FLAG_NEXT_CTRL flag. It does not return the next higher
>   control ID if a control query fails. A workaround has been enabled.
> [libwebcam] Warning: The driver behind device video0 has a slightly
> buggy implementation
>   of the V4L2_CTRL_FLAG_NEXT_CTRL flag. It does not return the next higher
>   control ID if a control query fails. A workaround has been enabled.
> [libwebcam] Warning: The driver behind device video0 has a slightly
> buggy implementation
>   of the V4L2_CTRL_FLAG_NEXT_CTRL flag. It does not return the next higher
>   control ID if a control query fails. A workaround has been enabled.


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