video - detect/use rear-facing camera
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I have a device which has two built-in camera: font and rear (Acer Switch). However, I'm not able to use this second input device in any application, e.g cheese. Not sure, but looks like a second video input was detected: $ ls /dev/video* /dev/video1 /dev/video2 I also tried to record directly from the device using ffmpeg as explained here: $ ffmpeg -f video4linux2 -s 320x240 -i /dev/video1 out.mp4 ... recorded and created file "out.mp4" as expected $ ffmpeg -f video4linux2 -s 320x240 -i /dev/video2 out.mp4 FAIL: /dev/video2: Inappropriate ioctl for device Any ideas? Using Ubuntu 18.10 GNOME 3.30.1
video 18.10 camera input-devices video-recording
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