On Sat, Apr 12, 2025 at 08:25:49PM -0000, Michael van Elst wrote: > Build a kernel with option UVIDEO_DEBUG, this might give some hint about the > error.
Right! # videoctl -d /dev/video0 -a videoctl: couldn't open '/dev/video0': Input/output error videoopen videoopen: flags=0x1 sc=0xffff81a57e505c40 parent=0xffff81a57e4e15c0 uvideo_open: sc=0xffff81a57e4eac40 uvideo_set_format: sc=0xffff81a57e4eac40 uvideo: error probe/GET_MAX: STALLED (17) uvideo: error commit/SET_CUR: STALLED (17) ... usbd_do_request_len()... time to add USB_DEBUG... > But a USB video device with two interfaces and two video streams > per interface is something new... and usbdevs just shows port 6 addr 2: high speed, power 500 mA, config 1, Integrated_Webcam_HD(0x5531), CKFIH12P466071019182(0x0bda), rev 81.78(0x8178), serial 200901010001 uvideo0 uvideo1 no sign of uvideo2 and 3. Cheers, Patrick
