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Commit ab4f5a4a authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

[media] v4l2-async: document the remaining stuff 



There are one enum and 4 functions undocumented there.
Document them. That will fix the broken links at the
v4l2-subdev.rst file.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 1bbcdae7

include/media/v4l2-async.h

+39 −0
Original line number Diff line number Diff line
@@ -23,6 +23,19 @@ struct v4l2_async_notifier; 
/* A random max subdevice number, used to allocate an array on stack */

#define V4L2_MAX_SUBDEVS 128U



/**

 * enum v4l2_async_match_type - type of asynchronous subdevice logic to be used

 *	in order to identify a match

 *

 * @V4L2_ASYNC_MATCH_CUSTOM: Match will use the logic provided by &struct

 * 	v4l2_async_subdev.match ops

 * @V4L2_ASYNC_MATCH_DEVNAME: Match will use the device name

 * @V4L2_ASYNC_MATCH_I2C: Match will check for I2C adapter ID and address

 * @V4L2_ASYNC_MATCH_OF: Match will use OF node

 *

 * This enum is used by the asyncrhronous sub-device logic to define the

 * algorithm that will be used to match an asynchronous device.

 */

enum v4l2_async_match_type {

	V4L2_ASYNC_MATCH_CUSTOM,

	V4L2_ASYNC_MATCH_DEVNAME,
@@ -91,9 +104,35 @@ struct v4l2_async_notifier { 
		       struct v4l2_async_subdev *asd);

};



/**

 * v4l2_async_notifier_register - registers a subdevice asynchronous notifier

 *

 * @v4l2_dev: pointer to &struct v4l2_device

 * @notifier: pointer to &struct v4l2_async_notifier

 */

int v4l2_async_notifier_register(struct v4l2_device *v4l2_dev,

				 struct v4l2_async_notifier *notifier);



/**

 * v4l2_async_notifier_unregister - unregisters a subdevice asynchronous notifier

 *

 * @notifier: pointer to &struct v4l2_async_notifier

 */

void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier);



/**

 * v4l2_async_register_subdev - registers a sub-device to the asynchronous

 * 	subdevice framework

 *

 * @sd: pointer to &struct v4l2_subdev

 */

int v4l2_async_register_subdev(struct v4l2_subdev *sd);



/**

 * v4l2_async_unregister_subdev - unregisters a sub-device to the asynchronous

 * 	subdevice framework

 *

 * @sd: pointer to &struct v4l2_subdev

 */

void v4l2_async_unregister_subdev(struct v4l2_subdev *sd);

#endif