include/media/media-device.h

3  * Media device
19 #include <media/media-devnode.h>
20 #include <media/media-entity.h>
26  * struct media_entity_notify - Media Entity Notify
33  * registered with the media device. This handler is intended for creating
44  * struct media_device_ops - Media device operations
76  * struct media_device - Media device
78  * @devnode:	Media device node
111  * This structure represents an abstract high-level media device. It allows easy
112  * access to entities and provides basic media device-level support. The
116  * media device.
195  * media_device_init() - Initializes a media device element
199  * This function initializes the media device prior to its registration.
200  * The media device initialization and registration is split in two functions
201  * to avoid race conditions and make the media device available to user-space
202  * before the media graph has been completed.
204  * So drivers need to first initialize the media device, register any entity
205  * within the media device, create pad to pad links and then finally register
206  * the media device by calling media_device_register() as a final step.
208  * The caller is responsible for initializing the media device before
220  * media_device_cleanup() - Cleanups a media device element
230  * __media_device_register() - Registers a media device element
264 …*    #) Upon successful registration a character device named media[0-9]+ is created. The device m…
266  *    #) Unregistering a media device that hasn't been registered is **NOT** safe.
275  * media_device_register() - Registers a media device element
285  * media_device_unregister() - Unregisters a media device element
290  * media device.
295  * media_device_register_entity() - registers a media entity inside a
296  *	previously registered media device.
301  * Entities are identified by a unique positive integer ID. The media
334  * media_device_unregister_entity() - unregisters a media entity.
344  * When a media device is unregistered, all its entities are unregistered
355  * media_device_register_entity_notify() - Registers a media entity_notify
358  * @mdev:      The media device
371  * media_device_unregister_entity_notify() - Unregister a media entity notify
374  * @mdev:      The media device
403  * @name:	media device name. If %NULL, the routine will use the default
415  * @board_name:	media device name. If %NULL, the routine will use the usb
485  * @name:	media device name. If %NULL, the routine will use the usb