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Linux Kernel
3.7.1
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Linux Kernel
3.7.1
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#include <v4l2-ctrls.h>
Data Fields | |
| int(* | g_volatile_ctrl )(struct v4l2_ctrl *ctrl) |
| int(* | try_ctrl )(struct v4l2_ctrl *ctrl) |
| int(* | s_ctrl )(struct v4l2_ctrl *ctrl) |
struct v4l2_ctrl_ops - The control operations that the driver has to provide. : Get a new value for this control. Generally only relevant for volatile (and usually read-only) controls such as a control that returns the current signal strength which changes continuously. If not set, then the currently cached value will be returned. : Test whether the control's value is valid. Only relevant when the usual min/max/step checks are not sufficient. : Actually set the new control value. s_ctrl is compulsory. The ctrl->handler->lock is held when these ops are called, so no one else can access controls owned by that handler.
Definition at line 50 of file v4l2-ctrls.h.
1.8.2