include/media/media-device.h

3  * Media device
17 #include <media/media-devnode.h>
18 #include <media/media-entity.h>
25  * struct media_entity_notify - Media Entity Notify
32  * registered with the media device. This handler is intended for creating
43  * struct media_device_ops - Media device operations
75  * struct media_device - Media device
77  * @devnode:	Media device node
110  * This structure represents an abstract high-level media device. It allows easy
111  * access to entities and provides basic media device-level support. The
115  * media device.
198  * @mdev: The related media device
210  * media_device_init() - Initializes a media device element
214  * This function initializes the media device prior to its registration.
215  * The media device initialization and registration is split in two functions
216  * to avoid race conditions and make the media device available to user-space
217  * before the media graph has been completed.
219  * So drivers need to first initialize the media device, register any entity
220  * within the media device, create pad to pad links and then finally register
221  * the media device by calling media_device_register() as a final step.
226  * media_device_cleanup() - Cleanups a media device element
236  * __media_device_register() - Registers a media device element
273 …*    #) Upon successful registration a character device named media[0-9]+ is created. The device m…
275  *    #) Unregistering a media device that hasn't been registered is **NOT** safe.
284  * media_device_register() - Registers a media device element
294  * media_device_unregister() - Unregisters a media device element
299  * media device.
304  * media_device_register_entity() - registers a media entity inside a
305  *	previously registered media device.
310  * Entities are identified by a unique positive integer ID. The media
343  * media_device_unregister_entity() - unregisters a media entity.
353  * When a media device is unregistered, all its entities are unregistered
364  * media_device_register_entity_notify() - Registers a media entity_notify
367  * @mdev:      The media device
380  * media_device_unregister_entity_notify() - Unregister a media entity notify
383  * @mdev:      The media device
412  * @name:	media device name. If %NULL, the routine will use the default
424  * @board_name:	media device name. If %NULL, the routine will use the usb
489  * @name:	media device name. If %NULL, the routine will use the usb