include/media/v4l2-ctrls.h

3  *  V4L2 controls support header.
104  *		for volatile (and usually read-only) controls such as a control
112  *		one else can access controls owned by that handler.
160  * @ncontrols:	Number of controls in cluster array.
199  * @step:	The control's step value for non-menu controls.
204  * @menu_skip_mask: The control's skip mask for menu controls. This makes it
231  *		through a pointer (for compound controls only).
303  *		the control has been applied. This prevents applying controls
304  *		from a cluster with multiple controls twice (when the first
314  * keep a sorted-by-control-ID list of all controls, while the next pointer
330  *	controls: both the controls owned by the handler and those inherited
334  * @lock:	Lock to control access to this handler and its controls.
336  * @ctrls:	The list of controls owned by this handler.
356  *		in which these controls are applied. Once the request is
382  * @type_ops:	The control type ops. Only needed for compound controls.
388  * @step:	The control's step value for non-menu controls.
390  * @p_def:	The control's default value for compound controls.
394  * @menu_skip_mask: The control's skip mask for menu controls. This makes it
441  * This works for all standard V4L2 controls.
442  * For non-standard controls it will only fill in the given arguments
462  * @nr_of_controls_hint: A hint of how many controls this handler is
464  *		any inherited controls. It doesn't have to be precise, but if
491  * @nr_of_controls_hint: A hint of how many controls this handler is
493  *		any inherited controls. It doesn't have to be precise, but if
522  * v4l2_ctrl_handler_free() - Free all controls owned by the handler and free
551  * __v4l2_ctrl_handler_setup() - Call the s_ctrl op for all controls belonging
557  * Button controls will be skipped, as are read-only controls.
564  * v4l2_ctrl_handler_setup() - Call the s_ctrl op for all controls belonging
568  * Button controls will be skipped, as are read-only controls.
575  * v4l2_ctrl_handler_log_status() - Log all controls owned by the handler.
622  * Use v4l2_ctrl_new_std_menu() when adding menu controls.
637  * @mask:	The control's skip mask for menu controls. This makes it
662  * @mask:	The control's skip mask for menu controls. This makes it
690  * Sames as v4l2_ctrl_new_std(), but with support to compound controls, thanks
732  * v4l2_ctrl_add_handler() - Add all controls from handler @add to
736  * @add:	The control handler whose controls you want to add to
738  * @filter:	This function will filter which controls should be added.
739  * @from_other_dev: If true, then the controls in @add were defined in another
743  * If @filter is NULL, then all controls are added. Otherwise only those
744  * controls for which @filter returns true will be added.
754  * v4l2_ctrl_radio_filter() - Standard filter for radio controls.
758  * This will return true for any controls that are valid for radio device
759  * nodes. Those are all of the V4L2_CID_AUDIO_* user controls and all FM
760  * transmitter class controls.
767  * v4l2_ctrl_cluster() - Mark all controls in the cluster as belonging
770  * @ncontrols:	The number of controls in this cluster.
771  * @controls:	The cluster control array of size @ncontrols.
773 void v4l2_ctrl_cluster(unsigned int ncontrols, struct v4l2_ctrl **controls);
777  * v4l2_ctrl_auto_cluster() - Mark all controls in the cluster as belonging
780  * @ncontrols:	The number of controls in this cluster.
781  * @controls:	The cluster control array of size @ncontrols. The first control
785  * @set_volatile: If true, then all controls except the first auto control will
789  * the other controls are only active whenever the automatic feature is turned
793  * The behavior of such controls is as follows:
795  * When the autofoo control is set to automatic, then any manual controls
799  * When the autofoo control is set to manual, then any manual controls will
808 			    struct v4l2_ctrl **controls,
888  * INTEGER, BOOLEAN, MENU, INTEGER MENU and BITMASK. For menu controls the
910  * INTEGER, BOOLEAN, MENU, INTEGER MENU and BITMASK. For menu controls the
989  * This function is for integer type controls only.
1003  * This function is for integer type controls only.
1017  * This function is for integer type controls only.
1040  * This function is for 64-bit integer type controls only.
1054  * This function is for 64-bit integer type controls only.
1069  * This function is for 64-bit integer type controls only.
1092  * This function is for string type controls only.
1107  * This function is for string type controls only.
1131  * This function is for compound type controls only.
1148  * This function is for compound type controls only.
1163 /* Helper defines for area type controls */
1201  * Can be used as a vidioc_log_status function that just dumps all controls
1252  * The function first obtains the values of any volatile controls in the control
1427  * v4l2_ctrl_subdev_log_status - Log all controls owned by subdev's control
1435  * v4l2_ctrl_new_fwnode_properties() - Register controls for the device
1438  * @hdl: pointer to &struct v4l2_ctrl_handler to register controls on
1439  * @ctrl_ops: pointer to &struct v4l2_ctrl_ops to register controls with
1442  * This function registers controls associated to device properties, using the
1446  * Currently the following v4l2 controls are parsed and registered:
1450  * Controls already registered by the caller with the @hdl control handler are
1451  * not overwritten. Callers should register the controls they want to handle