On 2020-04-07 18:35, Marc Fonvieille wrote: > "ugen0.3: <vendor 0x05a9 product 0xa511> at usbus0 (disconnected)" and > webcamd ends, always at the same place. This means the firmware has crashed. Likely the last command is causing this. Try using usbdump: usbdump -i usbusX -f Y -s 65536 -vvv --HPS