Re: Turning of webcam auto-focus

[Ed Greshko]

On 12/03/2021 05:24, Paul Smith wrote:
> #  v4l2-ctl -l
> User Controls
>                  keep_format 0x0098f900 (bool)   : default=0 value=0
>            sustain_framerate 0x0098f901 (bool)   : default=0 value=0
>                      timeout 0x0098f902 (int)    : min=0 max=100000
>
> step=1 default=0 value=0
>                 timeout_image_io 0x0098f903 (bool)   : default=0 value=0
> #
>
> I have only one webcam. But I am using a virtual camera via OBS Studio.

AFAIK, the v4l2-ctl command gets its information from the device and/or driver in use by the device.

Do you know if the loss of focus_auto happen recently?  If so, try booting to a previous kernel to see
if a kernel change may have triggered it.

FWIW, the webcam of my laptop has ceased working.  Old age.  And I only have a USB Capture HDMI
device on my desktop that does create both a /dev/video0 and /dev/video1.