Lines Matching refs:controls

19 VIDIOC_QUERYCTRL - VIDIOC_QUERY_EXT_CTRL - VIDIOC_QUERYMENU - Enumerate controls and menu control i…
55 It is possible to enumerate controls by calling ``VIDIOC_QUERYCTRL``
59 controls, which are not defined in this specification, by starting at
70 can be specified to enumerate all compound controls (i.e. controls with
72 controls that contain more than one value). Specify both
74 order to enumerate all controls, compound or not. Drivers which do not
78 support controls that can use compound types, and to expose additional
86 Additional information is required for menu controls: the names of the
159 	the user can change controls by keyboard or GUI buttons, rather
169 	for other types of controls.
173 	   Drivers reset controls to their default value only when
241 	the user can change controls by keyboard or GUI buttons, rather
248 	or ``_U16`` control. Not valid for other types of controls.
252 	   Drivers reset controls to their default value only when
264 	array. For string controls ``elem_size`` is equal to
313 	``V4L2_CTRL_TYPE_MENU`` type controls.
318 	``V4L2_CTRL_TYPE_INTEGER_MENU`` type controls.
497 	Such controls may be displayed specially in a user interface.
506 	controls within the same control class. Applications should update
522 	is typically present for relative controls or action controls
547 	for controls that are an array, string, or have a compound type.
557 	error flag or triggering the flash. All the controls of the type
568 	Note that typically controls with this flag will also set the
593    can skip predefined controls not supported by the hardware (although
595    controls after hardware detection without the trouble of reordering
597    controls because it would prematurely end the enumeration).