include/media/media-entity.h

24  * enum media_gobj_type - type of a graph object
43 /* Structs to represent the objects that belong to a media graph */
46  * struct media_gobj - Define a graph object.
55  * All objects on the media graph should have this struct embedded
78  * struct media_graph - Media graph traversal state
80  * @stack:		Graph traversal stack; the stack contains information
83  * @stack.entity:	pointer to &struct media_entity at the graph.
102  * @graph:		Media graph walk during pipeline start / stop
106 	struct media_graph graph;  member
110  * struct media_link - A link object part of a media graph.
179  * struct media_pad - A media pad graph object.
251  * struct media_entity - A media entity graph object.
321  * struct media_interface - A media interface graph object.
323  * @graph_obj:		embedded graph object
324  * @links:		List of links pointing to graph entities
359  * media_entity_id() - return the media entity graph object id
371  * @gobj:	Pointer to the struct &media_gobj graph object
381  * @gobj:	Pointer to the struct &media_gobj graph object
559  * @gobj: Pointer to the struct &media_gobj graph object
568  * @gobj: Pointer to the struct &media_gobj graph object
577  * @gobj: Pointer to the struct &media_gobj graph object
586  * @gobj: Pointer to the struct &media_gobj graph object
601  *  media_gobj_create - Initialize a graph object
605  * @gobj:	Pointer to the struct &media_gobj graph object
608  * media graph object. It is called automatically if ``media_*_create``
618  *  media_gobj_destroy - Stop using a graph object on a media device
620  * @gobj:	Pointer to the struct &media_gobj graph object
623  * that remove/destroy media graph objects.
884  * media_graph_walk_init - Allocate resources used by graph walk.
886  * @graph: Media graph structure that will be used to walk the graph
890 	struct media_graph *graph, struct media_device *mdev);
893  * media_graph_walk_cleanup - Release resources used by graph walk.
895  * @graph: Media graph structure that will be used to walk the graph
897 void media_graph_walk_cleanup(struct media_graph *graph);
900  * media_graph_walk_start - Start walking the media graph at a
903  * @graph: Media graph structure that will be used to walk the graph
907  * used to allocate resources used for walking the graph. This
908  * function initializes the graph traversal structure to walk the
909  * entities graph starting at the given entity. The traversal
910  * structure must not be modified by the caller during graph
911  * traversal. After the graph walk, the resources must be released
914 void media_graph_walk_start(struct media_graph *graph,
918  * media_graph_walk_next - Get the next entity in the graph
919  * @graph: Media graph structure
921  * Perform a depth-first traversal of the given media entities graph.
923  * The graph structure must have been previously initialized with a call to
926  * Return: returns the next entity in the graph or %NULL if the whole graph
929 struct media_entity *media_graph_walk_next(struct media_graph *graph);