include/media/media-entity.h

26  * enum media_gobj_type - type of a graph object
45 /* Structs to represent the objects that belong to a media graph */
48  * struct media_gobj - Define a graph object.
57  * All objects on the media graph should have this struct embedded
80  * struct media_graph - Media graph traversal state
82  * @stack:		Graph traversal stack; the stack contains information
85  * @stack.entity:	pointer to &struct media_entity at the graph.
154  * struct media_link - A link object part of a media graph.
223  * struct media_pad - A media pad graph object.
315  * struct media_entity - A media entity graph object.
391  * struct media_interface - A media interface graph object.
393  * @graph_obj:		embedded graph object
394  * @links:		List of links pointing to graph entities
429  * media_entity_id() - return the media entity graph object id
441  * @gobj:	Pointer to the struct &media_gobj graph object
451  * @gobj:	Pointer to the struct &media_gobj graph object
629  * @gobj: Pointer to the struct &media_gobj graph object
638  * @gobj: Pointer to the struct &media_gobj graph object
647  * @gobj: Pointer to the struct &media_gobj graph object
656  * @gobj: Pointer to the struct &media_gobj graph object
671  *  media_gobj_create - Initialize a graph object
675  * @gobj:	Pointer to the struct &media_gobj graph object
678  * media graph object. It is called automatically if ``media_*_create``
688  *  media_gobj_destroy - Stop using a graph object on a media device
690  * @gobj:	Pointer to the struct &media_gobj graph object
693  * that remove/destroy media graph objects.
1086  * media_graph_walk_init - Allocate resources used by graph walk.
1088  * @graph: Media graph structure that will be used to walk the graph
1093  * The caller is required to hold the media_device graph_mutex during the graph
1094  * walk until the graph state is released.
1099 	struct media_graph *graph, struct media_device *mdev);
1102  * media_graph_walk_cleanup - Release resources used by graph walk.
1104  * @graph: Media graph structure that will be used to walk the graph
1108 void media_graph_walk_cleanup(struct media_graph *graph);
1111  * media_graph_walk_start - Start walking the media graph at a
1114  * @graph: Media graph structure that will be used to walk the graph
1120  * used to allocate resources used for walking the graph. This
1121  * function initializes the graph traversal structure to walk the
1122  * entities graph starting at the given entity. The traversal
1123  * structure must not be modified by the caller during graph
1124  * traversal. After the graph walk, the resources must be released
1127 void media_graph_walk_start(struct media_graph *graph,
1131  * media_graph_walk_next - Get the next entity in the graph
1132  * @graph: Media graph structure
1136  * Perform a depth-first traversal of the given media entities graph.
1138  * The graph structure must have been previously initialized with a call to
1141  * Return: returns the next entity in the graph or %NULL if the whole graph
1144 struct media_entity *media_graph_walk_next(struct media_graph *graph);