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media: v4l2-subdev: Document that routing support depends on streams

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Routing support, through the subdev .set_routing() operation, requires
the subdev to support streams. This is however not clearly documented
anywhere. Fix it by expanding the operation's documentation to indicate
that subdevs must set the V4L2_SUBDEV_FL_STREAMS flag.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Laurent Pinchart 2023-08-18 18:55:18 +03:00 committed by Hans Verkuil
parent 71f8a5e4be
commit da7e34e558
1 changed files with 3 additions and 2 deletions
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5
include/media/v4l2-subdev.h
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@ -822,8 +822,9 @@ struct v4l2_subdev_state {
* operation shall fail if the pad index it has been called on
* is not valid or in case of unrecoverable failures.
*
* @set_routing: enable or disable data connection routes described in the
* subdevice routing table.
* @set_routing: Enable or disable data connection routes described in the
* subdevice routing table. Subdevs that implement this operation
* must set the V4L2_SUBDEV_FL_STREAMS flag.
*
* @enable_streams: Enable the streams defined in streams_mask on the given
* source pad. Subdevs that implement this operation must use the active