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.
Regards,
Hans
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