On Fri, Jan 28, 2022 at 09:31:43AM +0100, Ricardo Ribalda wrote: > I received out of list the dmesg output from Mohammad > > It looks like a hardware error to me: > > [ 48.729618] iTCO_wdt: unable to reset NO_REBOOT flag, device disabled by hardware/BIOS > [ 48.749361] uvcvideo: Found UVC 1.00 device j5 WebCam JVCU100 (0711:3108) > [ 48.751876] uvcvideo: Failed to query (129) UVC probe control : -32 (exp. 26). A GET_CUR failure on the video probe control is indeed fairly bad. If I had to guess, I would suspect either an issue at the USB level, or a firmware bug in the webcam. > [ 48.751879] uvcvideo: Failed to initialize the device (-5). > [ 48.751930] usbcore: registered new interface driver uvcvideo > > > On Wed, 26 Jan 2022 at 17:23, Ricardo Ribalda wrote: > > > > Hi Mohammad > > > > Could you share the output of dmesg when you connect the device? > > > > And also lsusb -vvvv -d 0711:3108 > > > > > > Thanks! > > > > On Wed, 26 Jan 2022 at 17:20, Mohammad wrote: > > > > > > Greetings, > > > > > > I have been trying to use the j5 WebCam JVCU100 on Linux and it doesn't > > > function properly. Cheese cannot seem to find it, and I did not see it > > > listed on your list of supported devices, so I thought I would bring it > > > to your attention. Here is what I see from running lsusb: > > > > > > Bus 001 Device 006: ID 0711:3108 Magic Control Technology Corp. j5 > > > WebCam JVCU100 > > > > > > Also, running lsusb -d 0711:3108 -v | grep "14 Video" returns > > > > > > Couldn't open device, some information will be missing > > > bFunctionClass 14 Video > > > bInterfaceClass 14 Video > > > bInterfaceClass 14 Video > > > bInterfaceClass 14 Video > > > bInterfaceClass 14 Video > > > > > > So, looks like the Linux UVC driver at least recognizes the webcam. > > > Please let me know if you can help with this, thanks! > > > > > > Regards, > > > > > > Mohammad -- Regards, Laurent Pinchart
