Hi Aurel, On Sunday 15 January 2012 11:16:30 Aurel wrote: > Hi there > > my "Live! Cam Socialize HD VF0610", Device ID: 041e:4080, Driver: uvcvideo > is running perfectly on Fedora 16 Linux, except one thing: > When I try to switch on "White Balance Temperature, Auto" or just try to > change "White Balance Temperature" slider I get a failure message and it > won't work. All other controls, like contrast, gamma, etc. are working. > "v4l2-ctl -d 1 --set-ctrl=white_balance_temperature_auto=1" produces an > error message: > "VIDIOC_S_CTRL: failed: Input/output error > white_balance_temperature_auto: Input/output error" > > As soon as I boot Windows (inside Linux out of a Virtual Box), start the > camera there and go back to Linux, I am able to adjust and switch on the > White Balance things in Linux. > "v4l2-ctl -d 1 --set-ctrl=white_balance_temperature_auto=1" working fine > after running the camera in Windows. > > Everytime I switch off my computer or disconnect the camera, I have to run > the camera in Windows again, bevor I can adjust White Balance in Linux. > > What can I do to get White Balance controls working in Linux, without > having to run the camera in Windows every time? > Is there a special command I have to send to the camera for initializing or > so? Not that I know of. If you use the stock UVC driver in Windows, without having installed a custom driver for your device, that's quite unlikely. Could you dump the value of all controls in Linux before and after booting Windows ? -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
