Hello Jeffrin, On Sat, Dec 07, 2019 at 11:51:52PM +0530, Jeffrin Jose wrote: > hello, > > i get this output piece from "dmesg -l err" of kernel 5.4.2 > > > -------------------x---------------------------x------------------ > uvcvideo: Failed to query (GET_INFO) UVC control 6 on unit 1: -32 (exp. 1). > uvcvideo: Failed to query (GET_INFO) UVC control 7 on unit 1: -32 (exp. 1). > -------------------x----------------------------x----------------- > > Additional information: > Linux debian 5.4.2 #17 SMP Sat Dec 7 01:39:12 IST 2019 x86_64 GNU/Linux > > Relevant file: > drivers/media/usb/uvc/uvc_video.c Does the camera otherwise fail to operate correctly ? Was the problem present in older kernel versions, or did it appear with v5.4.2 ? Are the above messages output every time you plug the camera (or load the driver in case the camera is built in), or only randomly ? What is the exact camera model, and could you please send me the lsusb -v output for it (running as root if possible) ? -- Regards, Laurent Pinchart
