lkml.org 
[lkml]   [2015]   [Aug]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 2/8] videodev2.h: Extend struct v4l2_ext_controls
Date
So it can be used to get the default value of a control.

Without this change it is not possible to get get the
default value of array controls.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
---
include/uapi/linux/videodev2.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 72fa3e490e30..2e857b19a155 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1461,7 +1461,10 @@ 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];
@@ -1472,6 +1475,8 @@ 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,
--
2.5.0


\
 
 \ /
  Last update: 2015-08-21 12:01    [W:0.071 / U:0.116 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site