Hi Bastian, On Mon, Sep 05, 2011 at 09:32:55AM +0000, Bastian Hecht wrote: > 2011/9/1 Sakari Ailus <sakari.ai...@iki.fi>: > > On Thu, Sep 01, 2011 at 11:14:08AM +0200, Sylwester Nawrocki wrote: > >> Hi Sakari, > >> > >> On 09/01/2011 10:47 AM, Sakari Ailus wrote: > >> > On Thu, Sep 01, 2011 at 09:15:20AM +0200, Guennadi Liakhovetski wrote: > >> >> On Thu, 1 Sep 2011, Sakari Ailus wrote: > >> >> > >> >>> On Wed, Aug 31, 2011 at 03:27:49PM +0000, Bastian Hecht wrote: > >> >>>> 2011/8/28 Laurent Pinchart <laurent.pinch...@ideasonboard.com>: > >> >>> [clip] > >> >>>>> If I'm not mistaken V4L2_CID_PRIVATE_BASE is deprecated. > >> >>>> > >> >>>> I checked at http://v4l2spec.bytesex.org/spec/x542.htm, googled > >> >>>> "V4L2_CID_PRIVATE_BASE deprecated" and read > >> >>>> Documentation/feature-removal-schedule.txt. I couldn't find anything. > >> >>> > >> >>> Hmm. Did you happen to check when that has been written? :) > >> >>> > >> >>> Please use this one instead: > >> >>> > >> >>> <URL:http://hverkuil.home.xs4all.nl/spec/media.html> > >> >> > >> >> "Drivers can also implement their own custom controls using > >> >> V4L2_CID_PRIVATE_BASE and higher values." > >> >> > >> >> Which specific location describes V4L2_CID_PRIVATE_BASE differently > >> >> there? > >> > > >> > That was a general comment, not related to the private base. There's no > >> > use for a three-year-old spec as a reference! > >> > > >> > The control framework does not support private controls, for example. The > >> > controls should be put to their own class in videodev2.h nowadays, > >> > that's my > >> > understanding. Cc Hans. > >> > >> Is this really the case that we close the door for private controls in > >> the mainline kernel ? Or am I misunderstanding something ? > >> How about v4l2_ctrl_new_custom() ? > >> > >> What if there are controls applicable to single driver only ? > >> Do we really want to have plenty of such in videodev2.h ? > > > > We have some of those already in videodev2.h. I'm not certain if I'm happy > > with this myself, considering e.g. that we could get a few truckloads of > > only camera lens hardware specific controls in the near future. > > So in my case (as these are controls that might be used by others too) > I should add something like > > #define V4L2_CID_BLUE_SATURATION (V4L2_CID_CAMERA_CLASS_BASE+19) > #define V4L2_CID_RED_SATURATION (V4L2_CID_CAMERA_CLASS_BASE+20)
What do these two controls do? Do they control gain or something else? > #define V4L2_CID_GRAY_SCALE_IMAGE (V4L2_CID_CAMERA_CLASS_BASE+21) V4L2_CID_COLOR_KILLER looks like something which would fit for the purpose. > #define V4L2_CID_SOLARIZE_EFFECT (V4L2_CID_CAMERA_CLASS_BASE+22) Sounds interesting for a sensor. I wonder if this would fall under a menu control, V4L2_CID_COLORFX. -- Sakari Ailus e-mail: sakari.ai...@iki.fi jabber/XMPP/Gmail: sai...@retiisi.org.uk -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
