{"slug": "is-it-possible-to-get-usb-camera-working-with-so101-arm-through-wsl-ubuntu", "title": "Is it possible to get USB camera working with SO101 arm through WSL Ubuntu?", "summary": "A user reports that a Logitech C270 USB webcam fails to work with the SO101 Arm kit through Windows Subsystem for Linux (WSL) Ubuntu, with the `lerobot-find-cameras opencv` command returning errors including 'ioctl(VIDIOC_QBUF): Bad file descriptor' and 'Inappropriate ioctl for device'. The user has enabled WSL passthrough and tried changing the format to V4L2, but the camera still times out waiting for a frame. The issue is likely related to WSL's limited support for USB video devices, as the camera works in native Linux environments.", "body_md": "Hello,\n\nI just got a SO101 Arm kit, finished building it and managed to get teleop working. I wanted to continue with the tutorials that are recommended before trying to do anything on my own, but I’ve come to a issue with trying to get cameras working.\n\nI have a Logitech C270 usb webcam (wsl passthrough has been enabled), and when running the `lerobot-find-cameras opencv`\n\ncommand I received this error message. I tried a couple things like changing the format to V4L2, but haven’t gotten this command to work as it does in the example. The only thing I found, but probably isn’t what i’m looking for is [`OpenCVCameraConfig` settings fail under `backend=ANY` on Linux; the same settings work with `backend=V4L2` · Issue #3198 · huggingface/lerobot · GitHub](https://github.com/huggingface/lerobot/issues/3198)\n\nThank you\n\nHere is the error listed below:\n\nioctl(VIDIOC_QBUF): Bad file descriptor\n\n[video4linux2,v4l2 @ 0x5b2d2bd784c0] ioctl(VIDIOC_G_INPUT): Inappropriate ioctl for device\n\n-– Detected Cameras —\n\nCamera #0:\n\nName: OpenCV Camera @ /dev/video0\n\nType: OpenCV\n\nId: /dev/video0\n\nBackend api: FFMPEG\n\nDefault stream profile:\n\nFormat: 0.0\n\nFourcc:\n\nWidth: 640\n\nHeight: 480\n\nFps: 30.0\n\nWARNING:lerobot.cameras.opencv.camera_opencv:Error reading frame in background thread for OpenCVCamera(/dev/video0): OpenCVCamera(/dev/video0) read failed (status=False).\n\nWARNING:lerobot.cameras.opencv.camera_opencv:Error reading frame in background thread for OpenCVCamera(/dev/video0): OpenCVCamera(/dev/video0) read failed (status=False).\n\nERROR:lerobot.scripts.lerobot_find_cameras:Failed to connect or configure OpenCV camera /dev/video0: Timed out waiting for frame from camera OpenCVCamera(/dev/video0) after 1000 ms. Read thread alive: True.\n\nWARNING:lerobot.cameras.opencv.camera_opencv:Error reading frame in background thread for OpenCVCamera(/dev/video0): OpenCVCamera(/dev/video0) read failed (status=False).\n\nioctl(VIDIOC_QBUF): Bad file descriptor\n\nWARNING:lerobot.scripts.lerobot_find_cameras:No cameras could be connected. Aborting image save.", "url": "https://wpnews.pro/news/is-it-possible-to-get-usb-camera-working-with-so101-arm-through-wsl-ubuntu", "canonical_source": "https://discuss.huggingface.co/t/is-it-possible-to-get-usb-camera-working-with-so101-arm-through-wsl-ubuntu/178337#post_1", "published_at": "2026-07-31 07:25:38+00:00", "updated_at": "2026-07-31 07:39:30.593226+00:00", "lang": "en", "topics": ["robotics", "developer-tools"], "entities": ["Logitech C270", "SO101 Arm", "WSL Ubuntu", "lerobot-find-cameras", "OpenCV", "Hugging Face LeRobot"], "alternates": {"html": "https://wpnews.pro/news/is-it-possible-to-get-usb-camera-working-with-so101-arm-through-wsl-ubuntu", "markdown": "https://wpnews.pro/news/is-it-possible-to-get-usb-camera-working-with-so101-arm-through-wsl-ubuntu.md", "text": "https://wpnews.pro/news/is-it-possible-to-get-usb-camera-working-with-so101-arm-through-wsl-ubuntu.txt", "jsonld": "https://wpnews.pro/news/is-it-possible-to-get-usb-camera-working-with-so101-arm-through-wsl-ubuntu.jsonld"}}