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UVC / webcam control in ubuntu

v4l2-ctl

Installing

• sudo apt-get install v4l-utils

Using

• set max zoom with c920:
  • v4l2-ctl -c zoom_absolute=200
• set max tele with c920:
  • v4l2-ctl -c zoom_absolute=100
• list all controllable settings:
  • v4l2-ctl --list-ctrls<code>

guvcview

• comes installed.
• launch it:
  • <code>guvcview
• should give you full access to your camera controls.