include/media/v4l2-event.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * v4l2-event.h
7  * Copyright (C) 2009--2010 Nokia Corporation.
25  * struct v4l2_kevent - Internal kernel event struct.
26  * @list:	List node for the v4l2_fh->available list.
39  * struct v4l2_subscribed_event_ops - Subscribed event operations.
54  * struct v4l2_subscribed_event - Internal struct representing a subscribed
57  * @list:	List node for the v4l2_fh->subscribed list.
60  * @flags:	Copy of v4l2_event_subscription->flags.
85  * v4l2_event_dequeue - Dequeue events from video device.
95  * v4l2_event_queue - Queue events to video device.
109  * v4l2_event_queue_fh - Queue events to video device.
124  * v4l2_event_wake_all - Wake all filehandles.
133  * v4l2_event_pending - Check if an event is available
142  * v4l2_event_subscribe - Subscribes to an event
145  * @sub: pointer to &struct v4l2_event_subscription
155 			 const struct v4l2_event_subscription *sub,
159  * v4l2_event_unsubscribe - Unsubscribes to an event
162  * @sub: pointer to &struct v4l2_event_subscription
165 			   const struct v4l2_event_subscription *sub);
167  * v4l2_event_unsubscribe_all - Unsubscribes to all events
174  * v4l2_event_subdev_unsubscribe - Subdev variant of v4l2_event_unsubscribe()
178  * @sub: pointer to &struct v4l2_event_subscription
182  *	This function should be used for the &struct v4l2_subdev_core_ops
187 				  struct v4l2_event_subscription *sub);
189  * v4l2_src_change_event_subscribe - helper function that calls
193  * @sub: pointer to &struct v4l2_event_subscription
196 				    const struct v4l2_event_subscription *sub);
198  * v4l2_src_change_event_subdev_subscribe - Variant of v4l2_event_subscribe(),
203  * @sub: pointer to &struct v4l2_event_subscription
207 					   struct v4l2_event_subscription *sub);