Hi Andrej, On 17/06/2019 12:33, Andrej Pashnin wrote: > Dear developers, > > I would like to control (pan-tilt-zoom) the following conference camera: >> Bus 001 Device 005: ID 046d:0837 Logitech, Inc. BCC950 ConferenceCam > It's a PTZ (pan-tilt-zoom) camera and I can control all 3 parameters > with a remote control device. > > However, using the *v4l2-ctr* utility I can only change the ZOOM > parameter. It doesn't contain neither PAN nor TILT in the list of > controllable parameters. > > *Question #1. * > Why? Could you list the controls that are provided please? I.e. the output of : v4l2-ctl -d /dev/video0 -l (where /dev/video0 is your device, and updated if necessary) > > *Question #2.* > Is it possible to add this options to the driver? I don't mind writing > some linux kernel module if necessary. I just don't know where I should > start. It depends on how the camera exposes the controls. They could be custom properties or non-standard controls from the camera which the windows driver knows about specifically? > I also know that it can be controlled programmatically with DirectShow > under Windows. > > > Thank you in advance for any suggestions. > > Cheers, > Andrey > > > _______________________________________________ > Linux-uvc-devel mailing list > Linux-uvc-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/linux-uvc-devel > -- Regards -- Kieran