Hi, this is possibly unrelated to the cause of the problem faced by the previous poster, but I also had CAM1 not recognised, both on a single and a dual camera setup. On a dual camera setup, CAM0 would be recognised, no problem (I am using the right camera adaptor boards, as I have bought an extra s...

I get the same error. pi@raspberrypi ~ $ v4l2-ctl --list-ctrls --device /dev/video0 Failed to open /dev/video0: Interrupted system call Same when using sudo. Loaded driver with: sudo uv4l --driver raspicam --auto-video_nr --width 800 --height 600 --encoding jpeg --quality 100 --nopreview --sched-rr ...