Lines Matching refs:controls

12 VIDIOC_QUERYCTRL - VIDIOC_QUERY_EXT_CTRL - VIDIOC_QUERYMENU - Enumerate controls and menu control i…
48 It is possible to enumerate controls by calling ``VIDIOC_QUERYCTRL``
52 controls, which are not defined in this specification, by starting at
63 can be specified to enumerate all compound controls (i.e. controls with
65 controls that contain more than one value). Specify both
67 order to enumerate all controls, compound or not. Drivers which do not
71 support controls that can use compound types, and to expose additional
79 Additional information is required for menu controls: the names of the
152 	the user can change controls by keyboard or GUI buttons, rather
162 	for other types of controls.
166 	   Drivers reset controls to their default value only when
234 	the user can change controls by keyboard or GUI buttons, rather
241 	or ``_U16`` control. Not valid for other types of controls.
245 	   Drivers reset controls to their default value only when
257 	array. For string controls ``elem_size`` is equal to
306 	``V4L2_CTRL_TYPE_MENU`` type controls.
311 	``V4L2_CTRL_TYPE_INTEGER_MENU`` type controls.
450 	Such controls may be displayed specially in a user interface.
459 	controls within the same control class. Applications should update
475 	is typically present for relative controls or action controls
500 	for controls that are an array, string, or have a compound type.
510 	error flag or triggering the flash. All the controls of the type
521 	Note that typically controls with this flag will also set the
546    can skip predefined controls not supported by the hardware (although
548    controls after hardware detection without the trouble of reordering
550    controls because it would prematurely end the enumeration).