Hi Hans, Thanks for the patch. On Tuesday 07 June 2011 17:05:13 Hans Verkuil wrote: > From: Hans Verkuil <hans.verkuil@xxxxxxxxx> > > It is a bit tricky to handle autogain/gain type scenerios correctly. Such > controls need to be clustered and the V4L2_CTRL_FLAG_UPDATE should be set > on the autofoo controls. In addition, the manual controls should be marked > inactive when the automatic mode is on, and active when the manual mode is > on. This also requires specialized volatile handling. > > The chances of drivers doing all these things correctly are pretty remote. > So a new v4l2_ctrl_auto_cluster function was added that takes care of these > issues. Sorry for being a killjoy, but how is this supposed to handle the auto- exposure control ? Auto-exposure can be in complete auto mode, where both exposure time and aperture are controlled automatically, in exposure- or aperture-priority mode, where only one the exposure time and aperture is controlled automatically, or in manual mode. -- 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