January 10, 20242 yr I have a Logitech C920 webcam I am trying to use on my Radxa Zero. I'm running Armbian 23.11.1 Bookworm 6.1.63 64-bit. When I run v4l2-ctl -i /dev/video1 --list-formats to query the webcam, it errors out. VIDIOC_S_INPUT: failed: Inappropriate ioctl for device ioctl: VIDIOC_ENUM_FMT Type: Video Capture Multiplanar [0]: 'NM12' (Y/UV 4:2:0 (N-C)) It seems anything relying on v4l2 is also failing to work. Anyone have ideas of what the issue may be? Thanks! ---------------------- FYI...If I use this webcam on a RaspberryPi 4 running Bookworm, it produces the following output and all v4l2 work. Video input set to 0 (Input 1: Camera, ok) ioctl: VIDIOC_ENUM_FMT Type: Video Capture [0]: 'YUYV' (YUYV 4:2:2) [1]: 'H264' (H.264, compressed) [2]: 'MJPG' (Motion-JPEG, compressed)
January 11, 20242 yr Author Quote What does dmesg show when connecting the device on both the rpi and the zero? See attached log files. Thanks! RockZero-dmesg.log RPi4-dmesg.log Edited January 11, 20242 yr by Bones558
January 14, 20242 yr On 1/10/2024 at 6:08 AM, Bones558 said: It seems anything relying on v4l2 is also failing to work You get anything from: v4l2-ctl --list-devices
January 17, 20242 yr Author On 1/14/2024 at 1:06 PM, Igor said: You get anything from: v4l2-ctl --list-devices No, that does not work either. The issue happens under "Armbian Bookworm Minimal CLI". Another fact I've found: Since posting the original question, I tried "Armbian Jammy Minimal CLI". The camera works under Jammy. So the issue seems specific to Armbian Bookworm. (Note the camera also works under Raspberry PI's Bookworm.)
May 25, 20251 yr Hi! I'm new here too. I tested my webcam using webcammictest.io, and it worked fine, so the hardware seems okay. If you're encountering the "Inappropriate ioctl for device" error with v4l2-ctl, it might be due to driver compatibility issues or kernel differences. You could try using a different Armbian version, like Jammy, to see if that resolves the problem
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