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[3/4] media: docs: USe SUBDEV_G_SELECTION for sensor properties

Message ID 20200805105721.15445-4-jacopo@jmondi.org
State New
Headers show
Series [1/4] media: docs: Describe pixel array properties | expand

Commit Message

Jacopo Mondi Aug. 5, 2020, 10:57 a.m. UTC 
Add a small note to the VIDIOC_SUBDEV_G_SELECTION IOCTL documentation
to report that the API can be used to access an image sensor pixel array
properties.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
---
 .../userspace-api/media/v4l/vidioc-subdev-g-selection.rst     | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/Documentation/userspace-api/media/v4l/vidioc-subdev-g-selection.rst b/Documentation/userspace-api/media/v4l/vidioc-subdev-g-selection.rst
index 06c9553ac48f5..05539f5deace2 100644
--- a/Documentation/userspace-api/media/v4l/vidioc-subdev-g-selection.rst
+++ b/Documentation/userspace-api/media/v4l/vidioc-subdev-g-selection.rst
@@ -46,6 +46,10 @@  The selections are used to configure various image processing
 functionality performed by the subdevs which affect the image size. This
 currently includes cropping, scaling and composition.
 
+This API can also be used to retrieve immutable properties of the device
+represented by the subdev, such as the pixel matrix properties of an image
+sensor.
+
 The selection API replaces
 :ref:`the old subdev crop API <VIDIOC_SUBDEV_G_CROP>`. All the
 function of the crop API, and more, are supported by the selections API.