include/media/v4l2-ctrls.h

461  * @hdl:	The control handler.
478  * error will also be stored in @hdl->error.
480 int v4l2_ctrl_handler_init_class(struct v4l2_ctrl_handler *hdl,
490  * @hdl:	The control handler.
505 #define v4l2_ctrl_handler_init(hdl, nr_of_controls_hint)		\  argument
509 		v4l2_ctrl_handler_init_class(hdl, nr_of_controls_hint,	\
513 					"(" #hdl ")->_lock");		\
517 #define v4l2_ctrl_handler_init(hdl, nr_of_controls_hint)		\  argument
518 	v4l2_ctrl_handler_init_class(hdl, nr_of_controls_hint, NULL, NULL)
524  * @hdl:	The control handler.
526  * Does nothing if @hdl == NULL.
528 void v4l2_ctrl_handler_free(struct v4l2_ctrl_handler *hdl);
555  * @hdl:	The control handler.
559  * If @hdl == NULL, then this just returns 0.
561 int __v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl);
566  * @hdl:	The control handler.
570  * If @hdl == NULL, then this just returns 0.
572 int v4l2_ctrl_handler_setup(struct v4l2_ctrl_handler *hdl);
576  * @hdl:	The control handler.
584  * Does nothing if @hdl == NULL.
586 void v4l2_ctrl_handler_log_status(struct v4l2_ctrl_handler *hdl,
593  * @hdl:	The control handler.
598  * and @hdl->error is set to the error code (if it wasn't set already).
600 struct v4l2_ctrl *v4l2_ctrl_new_custom(struct v4l2_ctrl_handler *hdl,
608  * @hdl:	The control handler.
617  * ID is not known, then NULL is returned and @hdl->error is set to the
624 struct v4l2_ctrl *v4l2_ctrl_new_std(struct v4l2_ctrl_handler *hdl,
633  * @hdl:	The control handler.
650 struct v4l2_ctrl *v4l2_ctrl_new_std_menu(struct v4l2_ctrl_handler *hdl,
658  * @hdl:	The control handler.
675 struct v4l2_ctrl *v4l2_ctrl_new_std_menu_items(struct v4l2_ctrl_handler *hdl,
685  * @hdl:       The control handler.
696 struct v4l2_ctrl *v4l2_ctrl_new_std_compound(struct v4l2_ctrl_handler *hdl,
704  * @hdl:	The control handler.
717 struct v4l2_ctrl *v4l2_ctrl_new_int_menu(struct v4l2_ctrl_handler *hdl,
733  *	handler @hdl.
735  * @hdl:	The control handler.
737  *		the @hdl control handler.
740  *		device than @hdl.
745  * In case of an error @hdl->error will be set to the error code (if it
748 int v4l2_ctrl_add_handler(struct v4l2_ctrl_handler *hdl,
815  * @hdl:	The control handler.
818  * If @hdl == NULL this will return NULL as well. Will lock the handler so
821 struct v4l2_ctrl *v4l2_ctrl_find(struct v4l2_ctrl_handler *hdl, u32 id);
1283  * @hdl: Put this control handler
1288 static inline void v4l2_ctrl_request_hdl_put(struct v4l2_ctrl_handler *hdl)  in v4l2_ctrl_request_hdl_put()  argument
1290 	if (hdl)  in v4l2_ctrl_request_hdl_put()
1291 		media_request_object_put(&hdl->req_obj);  in v4l2_ctrl_request_hdl_put()
1297  * @hdl: The control handler from the request.
1304 v4l2_ctrl_request_hdl_ctrl_find(struct v4l2_ctrl_handler *hdl, u32 id);
1312  * @hdl: pointer to &struct v4l2_ctrl_handler
1315  * If hdl == NULL then they will all return -EINVAL.
1317 int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc);
1323  * @hdl: pointer to &struct v4l2_ctrl_handler
1326  * If hdl == NULL then they will all return -EINVAL.
1328 int v4l2_query_ext_ctrl(struct v4l2_ctrl_handler *hdl,
1335  * @hdl: pointer to &struct v4l2_ctrl_handler
1338  * If hdl == NULL then they will all return -EINVAL.
1340 int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm);
1346  * @hdl: pointer to &struct v4l2_ctrl_handler
1349  * If hdl == NULL then they will all return -EINVAL.
1351 int v4l2_g_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *ctrl);
1358  * @hdl: pointer to &struct v4l2_ctrl_handler
1362  * If hdl == NULL then they will all return -EINVAL.
1364 int v4l2_s_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl,
1371  * @hdl: pointer to &struct v4l2_ctrl_handler
1376  * If hdl == NULL then they will all return -EINVAL.
1378 int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct video_device *vdev,
1385  * @hdl: pointer to &struct v4l2_ctrl_handler
1390  * If hdl == NULL then they will all return -EINVAL.
1392 int v4l2_try_ext_ctrls(struct v4l2_ctrl_handler *hdl,
1402  * @hdl: pointer to &struct v4l2_ctrl_handler
1407  * If hdl == NULL then they will all return -EINVAL.
1409 int v4l2_s_ext_ctrls(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl,
1438  * @hdl: pointer to &struct v4l2_ctrl_handler to register controls on
1450  * Controls already registered by the caller with the @hdl control handler are
1456 int v4l2_ctrl_new_fwnode_properties(struct v4l2_ctrl_handler *hdl,