Messages in this thread Patch in this message | | | From | Ricardo Ribalda Delgado <> | Subject | [PATCH v10 6/8] Documentation: media: Describe V4L2_CID_UNIT_CELL_SIZE | Date | Mon, 7 Oct 2019 13:35:00 +0200 |
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New control to pass to userspace the width/height of a pixel. Which is needed for calibration and lens selection.
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Ricardo Ribalda Delgado <ribalda@kernel.org> --- Documentation/media/uapi/v4l/ext-ctrls-image-source.rst | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/Documentation/media/uapi/v4l/ext-ctrls-image-source.rst b/Documentation/media/uapi/v4l/ext-ctrls-image-source.rst index 2c3ab5796d76..6388668855d0 100644 --- a/Documentation/media/uapi/v4l/ext-ctrls-image-source.rst +++ b/Documentation/media/uapi/v4l/ext-ctrls-image-source.rst @@ -55,3 +55,12 @@ Image Source Control IDs ``V4L2_CID_TEST_PATTERN_GREENB (integer)`` Test pattern green (next to blue) colour component. + +``V4L2_CID_UNIT_CELL_SIZE (struct)`` + This control returns the unit cell size in nanometers. The struct + :c:type:`v4l2_area` provides the width and the height in separate + fields to take into consideration asymmetric pixels and/or hardware + binning. + The unit cell consists of the whole area of the pixel, sensitive and + non-sensitive. + This control is required for automatic calibration of sensors/cameras. -- 2.23.0
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