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Subject: media: v4l2-subdev: Document that routing support depends on streams
Author: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Date: Fri Aug 18 18:55:18 2023 +0300
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.pinch...@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkei...@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
include/media/v4l2-subdev.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index d9fca929c10b..820e38ec3dc9 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -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
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