[media] media: entity: Document the media_entity_ops structure
Currently, there's no documentation for the structure. Add a kernel-doc nano documentation to it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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@ -44,6 +44,15 @@ struct media_pad {
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unsigned long flags; /* Pad flags (MEDIA_PAD_FL_*) */
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};
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/**
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* struct media_entity_operations - Media entity operations
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* @link_setup: Notify the entity of link changes. The operation can
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* return an error, in which case link setup will be
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* cancelled. Optional.
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* @link_validate: Return whether a link is valid from the entity point of
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* view. The media_entity_pipeline_start() function
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* validates all links by calling this operation. Optional.
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*/
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struct media_entity_operations {
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int (*link_setup)(struct media_entity *entity,
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const struct media_pad *local,
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