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media: v4l2-subdev: document controls need _FL_HAS_DEVNODE
authorLuca Ceresoli <luca@lucaceresoli.net>
Wed, 5 Dec 2018 16:55:37 +0000 (11:55 -0500)
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Fri, 7 Dec 2018 13:31:18 +0000 (08:31 -0500)
commitd138091ffca629a0914a37fde5d2253ef5f31ad2
tree42cacd21c2f30dea4c886c4066af778716ae0895tree | snapshot
parentbe7e3c3684e0790a84d25b3a7b70b434342e1cc3commit | diff
media: v4l2-subdev: document controls need _FL_HAS_DEVNODE

Control events can be subscribed and received by the user. Therefore
drivers that support controls must expose the
V4L2_SUBDEV_FL_HAS_EVENTS flag.

[As discussed in https://lkml.org/lkml/2018/11/27/637]

Reported-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
include/media/v4l2-subdev.h diff | blob | history
Domain: System / Kernel;