From: Ricardo Ribalda <ricardo.ribalda@gmail.com>
Date: Thu, 29 Oct 2015 10:10:27 +0000 (-0200)
Subject: [media] videodev2.h: Extend struct v4l2_ext_controls
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=35ec2a2fa5a362b07b590ae1568dc35e47a7b846;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

[media] videodev2.h: Extend struct v4l2_ext_controls

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>
---

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index a0e87d16b726..4d88ee2d268e 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1476,7 +1476,10 @@ struct v4l2_ext_control {
 } __attribute__ ((packed));
 
 struct v4l2_ext_controls {
-	__u32 ctrl_class;
+	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,