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Thanks MacBreaker - I do have v4l-utils installed. Running v4l2-ctl --list-ctrls returns a blank line at the command prompt.

Hi, I'm trying to use commands v4l2-ctl --list-ctrls and v4l2-ctl --list-ctrls-menus on an Armbian PineCube. These commands work out of the box on NixOS, what preparation is necessary on Armbian?