Commit 3f0a7006 authored by Ricardo Ribalda's avatar Ricardo Ribalda Committed by Mauro Carvalho Chehab
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media: Documentation: media: Describe V4L2_CID_UNIT_CELL_SIZE 



New control to pass to userspace the width/height of a pixel. Which is
needed for calibration and lens selection.

Reviewed-by: default avatarPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: default avatarRicardo Ribalda Delgado <ribalda@kernel.org>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
parent 61fd036d

Documentation/media/uapi/v4l/ext-ctrls-image-source.rst

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@@ -55,3 +55,13 @@ 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.

    This control does not take into consideration any possible 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.