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| author | Ricardo Ribalda <ricardo.ribalda@gmail.com> | 2015-10-29 08:10:27 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-11-17 14:42:42 -0200 |
| commit | 35ec2a2fa5a362b07b590ae1568dc35e47a7b846 (patch) | |
| tree | 85ca614f00129e6881cadc5e0bd7dfc6e3232d26 | |
| parent | dc5e02050b8574393d921ed76d37eb359b55f39a (diff) | |
| download | lwn-35ec2a2fa5a362b07b590ae1568dc35e47a7b846.tar.gz lwn-35ec2a2fa5a362b07b590ae1568dc35e47a7b846.zip | |
[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>
| -rw-r--r-- | include/uapi/linux/videodev2.h | 7 |
1 files changed, 6 insertions, 1 deletions
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, |