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[media] v4l: Image source control class

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Add image source control class. This control class is intended to contain
low level controls which deal with control of the image capture process ---
the A/D converter in image sensors, for example.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sakari Ailus 2011-10-04 08:20:05 -03:00 • committed by Mauro Carvalho Chehab
parent 6016af82ea
commit 8c9d236ec6
4 changed files with 108 additions and 0 deletions
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9
include/linux/videodev2.h
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@ -1139,6 +1139,7 @@ struct v4l2_ext_controls {
#define V4L2_CTRL_CLASS_FM_TX 0x009b0000 /* FM Modulator control class */
#define V4L2_CTRL_CLASS_FLASH 0x009c0000 /* Camera flash controls */
#define V4L2_CTRL_CLASS_JPEG 0x009d0000 /* JPEG-compression controls */
#define V4L2_CTRL_CLASS_IMAGE_SOURCE 0x009e0000 /* Image source controls */
#define V4L2_CTRL_ID_MASK (0x0fffffff)
#define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL)
@ -1788,6 +1789,14 @@ enum v4l2_jpeg_chroma_subsampling {
#define V4L2_JPEG_ACTIVE_MARKER_DQT (1 << 17)
#define V4L2_JPEG_ACTIVE_MARKER_DHT (1 << 18)
/* Image source controls */
#define V4L2_CID_IMAGE_SOURCE_CLASS_BASE (V4L2_CTRL_CLASS_IMAGE_SOURCE | 0x900)
#define V4L2_CID_IMAGE_SOURCE_CLASS (V4L2_CTRL_CLASS_IMAGE_SOURCE | 1)
#define V4L2_CID_VBLANK (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 1)
#define V4L2_CID_HBLANK (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 2)
#define V4L2_CID_ANALOGUE_GAIN (V4L2_CID_IMAGE_SOURCE_CLASS_BASE + 3)
/*
* T U N I N G
*/