#include <v4l2-ctrls.h>

Data Fields
struct mutex	_lock

struct mutex *	lock

struct list_head	ctrls

struct list_head	ctrl_refs

struct v4l2_ctrl_ref *	cached

struct v4l2_ctrl_ref **	buckets

u16	nr_of_buckets

int	error

Detailed Description

struct v4l2_ctrl_handler - The control handler keeps track of all the controls: both the controls owned by the handler and those inherited from other handlers. : Default for "lock". : Lock to control access to this handler and its controls. May be replaced by the user right after init. : The list of controls owned by this handler. : The list of control references. : The last found control reference. It is common that the same control is needed multiple times, so this is a simple optimization. : Buckets for the hashing. Allows for quick control lookup. : Total number of buckets in the array. : The error code of the first failed control addition.