include/media/v4l2-ctrls.h

3  *  V4L2 controls support header.
112  *		for volatile (and usually read-only) controls such as a control
120  *		one else can access controls owned by that handler.
166  * @ncontrols:	Number of controls in cluster array.
207  * @step:	The control's step value for non-menu controls.
215  * @menu_skip_mask: The control's skip mask for menu controls. This makes it
247  *		through a pointer (for compound controls only).
323  *		the control has been applied. This prevents applying controls
324  *		from a cluster with multiple controls twice (when the first
346  * keep a sorted-by-control-ID list of all controls, while the next pointer
365  *	controls: both the controls owned by the handler and those inherited
369  * @lock:	Lock to control access to this handler and its controls.
371  * @ctrls:	The list of controls owned by this handler.
391  *		in which these controls are applied. Once the request is
417  * @type_ops:	The control type ops. Only needed for compound controls.
423  * @step:	The control's step value for non-menu controls.
425  * @p_def:	The control's default value for compound controls.
429  * @menu_skip_mask: The control's skip mask for menu controls. This makes it
476  * This works for all standard V4L2 controls.
477  * For non-standard controls it will only fill in the given arguments
497  * @nr_of_controls_hint: A hint of how many controls this handler is
499  *		any inherited controls. It doesn't have to be precise, but if
526  * @nr_of_controls_hint: A hint of how many controls this handler is
528  *		any inherited controls. It doesn't have to be precise, but if
557  * v4l2_ctrl_handler_free() - Free all controls owned by the handler and free
586  * __v4l2_ctrl_handler_setup() - Call the s_ctrl op for all controls belonging
592  * Button controls will be skipped, as are read-only controls.
599  * v4l2_ctrl_handler_setup() - Call the s_ctrl op for all controls belonging
603  * Button controls will be skipped, as are read-only controls.
610  * v4l2_ctrl_handler_log_status() - Log all controls owned by the handler.
657  * Use v4l2_ctrl_new_std_menu() when adding menu controls.
672  * @mask:	The control's skip mask for menu controls. This makes it
697  * @mask:	The control's skip mask for menu controls. This makes it
725  * Sames as v4l2_ctrl_new_std(), but with support to compound controls, thanks
767  * v4l2_ctrl_add_handler() - Add all controls from handler @add to
771  * @add:	The control handler whose controls you want to add to
773  * @filter:	This function will filter which controls should be added.
774  * @from_other_dev: If true, then the controls in @add were defined in another
778  * If @filter is NULL, then all controls are added. Otherwise only those
779  * controls for which @filter returns true will be added.
789  * v4l2_ctrl_radio_filter() - Standard filter for radio controls.
793  * This will return true for any controls that are valid for radio device
794  * nodes. Those are all of the V4L2_CID_AUDIO_* user controls and all FM
795  * transmitter class controls.
802  * v4l2_ctrl_cluster() - Mark all controls in the cluster as belonging
805  * @ncontrols:	The number of controls in this cluster.
806  * @controls:	The cluster control array of size @ncontrols.
808 void v4l2_ctrl_cluster(unsigned int ncontrols, struct v4l2_ctrl **controls);
812  * v4l2_ctrl_auto_cluster() - Mark all controls in the cluster as belonging
815  * @ncontrols:	The number of controls in this cluster.
816  * @controls:	The cluster control array of size @ncontrols. The first control
820  * @set_volatile: If true, then all controls except the first auto control will
824  * the other controls are only active whenever the automatic feature is turned
828  * The behavior of such controls is as follows:
830  * When the autofoo control is set to automatic, then any manual controls
834  * When the autofoo control is set to manual, then any manual controls will
843 			    struct v4l2_ctrl **controls,
923  * INTEGER, BOOLEAN, MENU, INTEGER MENU and BITMASK. For menu controls the
945  * INTEGER, BOOLEAN, MENU, INTEGER MENU and BITMASK. For menu controls the
1077  * This function is for integer type controls only.
1091  * This function is for integer type controls only.
1105  * This function is for integer type controls only.
1128  * This function is for 64-bit integer type controls only.
1142  * This function is for 64-bit integer type controls only.
1157  * This function is for 64-bit integer type controls only.
1180  * This function is for string type controls only.
1195  * This function is for string type controls only.
1219  * This function is for compound type controls only.
1236  * This function is for compound type controls only.
1251 /* Helper defines for area type controls */
1289  * Can be used as a vidioc_log_status function that just dumps all controls
1340  * The function first obtains the values of any volatile controls in the control
1515  * v4l2_ctrl_subdev_log_status - Log all controls owned by subdev's control
1523  * v4l2_ctrl_new_fwnode_properties() - Register controls for the device
1526  * @hdl: pointer to &struct v4l2_ctrl_handler to register controls on
1527  * @ctrl_ops: pointer to &struct v4l2_ctrl_ops to register controls with
1530  * This function registers controls associated to device properties, using the
1534  * Currently the following v4l2 controls are parsed and registered:
1539  * not overwritten. Callers should register the controls they want to handle