Thanks Marc for your answer, I have a /dev/video0 but no /dev/video. Should I create a link ? Or a new rule in udev ? Patrick m.roth at 5-cent.us wrote: > Patrick Begou wrote: >> Hi, >> >> I've launched a "yum upgrade" command on a CentOS6 laptop which has >> updated nearly 600 packages. Automatic updates were not working because > of a >> conflict on a package. >> >> So the laptop is now uptodate but the camera did not works after this. The >> message is: >> >> kernel: uvcvideo: Failed to query (GET_DEF) UVC control 6 on unit 2: -110 >> (exp. 2). >> >> The camera is detected as USB, lsusb shows: >> Bus 001 Device 003: ID 0c45:646b Microdia > <snip> > We use motion, so I' m not familiar with camera, but does it load an v4l2 > kernel module, and so create /dev/video0? If so, does the /dev/video > device exist? > > mark > -- =================================================================== | Equipe M.O.S.T. | | | Patrick BEGOU | mailto:Patrick.Begou at grenoble-inp.fr | | LEGI | | | BP 53 X | Tel 04 76 82 51 35 | | 38041 GRENOBLE CEDEX | Fax 04 76 82 52 71 | ===================================================================