[media] videodev2.h: Extend struct v4l2_ext_controls (35ec2a2f) · Commits · 戴 / test

So it can be used to get the default value of a control. Without this change it is not possible to get the default value of array controls. Signed-off-by:

Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> Signed-off-by:

Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:

Mauro Carvalho Chehab <mchehab@osg.samsung.com>

include/uapi/linux/videodev2.h

+6 −1

Original line number	Diff line number	Diff line
		@@ -1476,7 +1476,10 @@ struct v4l2_ext_control {
		} __attribute__ ((packed));

		struct v4l2_ext_controls {
		union {
		__u32 ctrl_class;
		__u32 which;
		};
		__u32 count;
		__u32 error_idx;
		__u32 reserved[2];
		@@ -1487,6 +1490,8 @@ struct v4l2_ext_controls {
		#define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL)
		#define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000)
		#define V4L2_CTRL_MAX_DIMS (4)
		#define V4L2_CTRL_WHICH_CUR_VAL 0
		#define V4L2_CTRL_WHICH_DEF_VAL 0x0f000000

		enum v4l2_ctrl_type {
		V4L2_CTRL_TYPE_INTEGER = 1,

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