How to make webcam settings permanent?
Solution 1:
This will do the trick:
% uvcdynctrl -L webcam_settings.gpfl
You can even create this file using the same tool:
% uvcdynctrl -W webcam_settings.gpfl
Solution 2:
The program guvcview uses a config file called .guvcviewrc in your home directory which controls all of the settings for guvcview. Inside you'll see in this example there is a profile path which defaults to default.gpfl
So, save your gpfl file as default.gpfl in your home directory and see if that works, if not, then change the location mentioned in the config file to where your profile file is.