Is there a way around this problem? Would I have to reach out to the device manufacturer? On 1/28/22 4:47 AM, Laurent Pinchart wrote: > 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
