Lines Matching refs:controls

13 VIDIOC_QUERYCTRL - VIDIOC_QUERY_EXT_CTRL - VIDIOC_QUERYMENU - Enumerate controls and menu control i…
47 It is possible to enumerate controls by calling ``VIDIOC_QUERYCTRL``
51 controls, which are not defined in this specification, by starting at
62 can be specified to enumerate all compound controls (i.e. controls with
64 controls that contain more than one value). Specify both
66 order to enumerate all controls, compound or not. Drivers which do not
70 support controls that can use compound types, and to expose additional
78 Additional information is required for menu controls: the names of the
150 	the user can change controls by keyboard or GUI buttons, rather
160 	for other types of controls.
164 	   Drivers reset controls to their default value only when
231 	the user can change controls by keyboard or GUI buttons, rather
238 	or ``_U16`` control. Not valid for other types of controls.
242 	   Drivers reset controls to their default value only when
254 	array. For string controls ``elem_size`` is equal to
297 	``V4L2_CTRL_TYPE_MENU`` type controls.
301 	``V4L2_CTRL_TYPE_INTEGER_MENU`` type controls.
553 	Such controls may be displayed specially in a user interface.
562 	controls within the same control class. Applications should update
578 	is typically present for relative controls or action controls
603 	for controls that are an array, string, or have a compound type.
613 	error flag or triggering the flash. All the controls of the type
624 	Note that typically controls with this flag will also set the
656    can skip predefined controls not supported by the hardware (although
658    controls after hardware detection without the trouble of reordering
660    controls because it would prematurely end the enumeration).