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[media] v4l2 core: add the missing pieces to support DVI/HDMI/DisplayPort

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These new controls and two new ioctls make it possible to properly support
VGA, DVI-A/D/I, HDMI and DisplayPort connectors. All these controls and the
ioctls are all at the sub-device level. They are meant for V4L2 bridge/platform
drivers or to be accessed on embedded systems through /dev/v4l-subdev* device
nodes.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
2012-07-05 10:58:06 -03:00
committed by Mauro Carvalho Chehab
parent faedc36377
commit 777f4f85b7
2 changed files with 33 additions and 0 deletions
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10
include/linux/v4l2-subdev.h
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@@ -148,6 +148,14 @@ struct v4l2_subdev_selection {
__u32 reserved[8];
};
struct v4l2_subdev_edid {
__u32 pad;
__u32 start_block;
__u32 blocks;
__u32 reserved[5];
__u8 __user *edid;
};
#define VIDIOC_SUBDEV_G_FMT _IOWR('V', 4, struct v4l2_subdev_format)
#define VIDIOC_SUBDEV_S_FMT _IOWR('V', 5, struct v4l2_subdev_format)
#define VIDIOC_SUBDEV_G_FRAME_INTERVAL \
@@ -166,5 +174,7 @@ struct v4l2_subdev_selection {
_IOWR('V', 61, struct v4l2_subdev_selection)
#define VIDIOC_SUBDEV_S_SELECTION \
_IOWR('V', 62, struct v4l2_subdev_selection)
#define VIDIOC_SUBDEV_G_EDID _IOWR('V', 40, struct v4l2_subdev_edid)
#define VIDIOC_SUBDEV_S_EDID _IOWR('V', 41, struct v4l2_subdev_edid)
#endif