Hi Hans, On Thursday 24 December 2015 13:54:11 hverkuil wrote: > On 2015-12-24 12:29, Laurent Pinchart wrote: > >> Control classes are not deprecated, only the use of the control_class > >> field in struct v4l2_ext_controls to limit the controls in the list to > >> a single control class is deprecated. That old limitation was from pre- > >> control-framework times to simplify driver design. With the creation > >> of the control framework that limitation is no longer needed. > > > > Doesn't that effectively deprecated control classes ? We can certainly > > group controls in categories for documentation purposes, but the control > > class as an API concept is quite useless nowadays. > > No it's not. It is meant to be used by GUIs to group controls into tab > pages or something similar. See qv4l2 or v4l2-ctl. It's very useful. I guess I'll just keep disagreeing with you regarding whether the kernel should provide GUI hints then (cf. V4L2_CTRL_FLAG_SLIDER) :-) -- 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
