Turning of webcam auto-focus

[Paul Smith]

Dear All,

To turn off the auto-focus feature of my webcam, I used the following command:

v4l2-ctl -c focus_auto=0

However, recently, the same command returns the following:

# v4l2-ctl -c focus_auto=0
unknown control 'focus_auto'
#

Any ideas?

Thanks in advance,

Paul