Hi Hans, > > This is very much a driver-specific control. So you have to make your > own. > > This series is a good example on how to add a custom control: > > https://lore.kernel.org/linux-media/20221028023554.928-1-jammy_huang@xxxxxxxxxxxxxx/ > > Driver-specific controls are fine, as long as they are properly documented. Thanks for the advice, I'll add our own custom control. Regards, Marvin