include/media/media-entity.h

25  * enum media_gobj_type - type of a graph object
44 /* Structs to represent the objects that belong to a media graph */
47  * struct media_gobj - Define a graph object.
56  * All objects on the media graph should have this struct embedded
79  * struct media_graph - Media graph traversal state
81  * @stack:		Graph traversal stack; the stack contains information
84  * @stack.entity:	pointer to &struct media_entity at the graph.
103  * @graph:		Media graph walk during pipeline start / stop
107 	struct media_graph graph;  member
111  * struct media_link - A link object part of a media graph.
181  * struct media_pad - A media pad graph object.
253  * struct media_entity - A media entity graph object.
323  * struct media_interface - A media interface graph object.
325  * @graph_obj:		embedded graph object
326  * @links:		List of links pointing to graph entities
361  * media_entity_id() - return the media entity graph object id
373  * @gobj:	Pointer to the struct &media_gobj graph object
383  * @gobj:	Pointer to the struct &media_gobj graph object
561  * @gobj: Pointer to the struct &media_gobj graph object
570  * @gobj: Pointer to the struct &media_gobj graph object
579  * @gobj: Pointer to the struct &media_gobj graph object
588  * @gobj: Pointer to the struct &media_gobj graph object
603  *  media_gobj_create - Initialize a graph object
607  * @gobj:	Pointer to the struct &media_gobj graph object
610  * media graph object. It is called automatically if ``media_*_create``
620  *  media_gobj_destroy - Stop using a graph object on a media device
622  * @gobj:	Pointer to the struct &media_gobj graph object
625  * that remove/destroy media graph objects.
886  * media_graph_walk_init - Allocate resources used by graph walk.
888  * @graph: Media graph structure that will be used to walk the graph
892 	struct media_graph *graph, struct media_device *mdev);
895  * media_graph_walk_cleanup - Release resources used by graph walk.
897  * @graph: Media graph structure that will be used to walk the graph
899 void media_graph_walk_cleanup(struct media_graph *graph);
902  * media_graph_walk_start - Start walking the media graph at a
905  * @graph: Media graph structure that will be used to walk the graph
909  * used to allocate resources used for walking the graph. This
910  * function initializes the graph traversal structure to walk the
911  * entities graph starting at the given entity. The traversal
912  * structure must not be modified by the caller during graph
913  * traversal. After the graph walk, the resources must be released
916 void media_graph_walk_start(struct media_graph *graph,
920  * media_graph_walk_next - Get the next entity in the graph
921  * @graph: Media graph structure
923  * Perform a depth-first traversal of the given media entities graph.
925  * The graph structure must have been previously initialized with a call to
928  * Return: returns the next entity in the graph or %NULL if the whole graph
931 struct media_entity *media_graph_walk_next(struct media_graph *graph);