How to programmatically disable the auto-focus of a webcam?

Question

I am trying to do computer vision using a webcam (the model is Hercules Dualpix). I know it is not the ideal camera to use, but I have no choice here.

The problem i

Answer 1

Try using uvcdynctrl where -l flag shall list you the features and -s can be used to set any feature http://manpages.ubuntu.com/manpages/natty/man1/uvcdynctrl.1.html