NekoCWD/libcamera
NekoCWD/libcamera
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages 7 Wiki Activity Actions

documentation: sensor_drivers: Document H/V flip

Browse source 
Briefly document the optional requirement support for H/V flip controls.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
This commit is contained in:
Jacopo Mondi 2022-11-24 13:12:20 +01:00
parent 517017c49a
commit bb35ac92e4
1 changed files with 12 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

12
Documentation/sensor_driver_requirements.rst
View file

@ -62,6 +62,18 @@ The sensor driver should support the following V4L2 controls:
The controls are used to register the camera location and rotation.
In order to support rotating the image the sensor driver should support
* `V4L2_CID_HFLIP`_
* `V4L2_CID_VFLIP`_
.. _V4L2_CID_HFLIP: https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/control.html
.. _V4L2_CID_VFLIP: https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/control.html
The controls must be writable from userspace. In case of a RAW Bayer sensors,
drivers should correctly report if vertical/horizontal flips modify the Bayer
pattern ordering by reporting the `V4L2_CTRL_FLAG_MODIFY_LAYOUT` control flag.
The sensor driver should implement support for the V4L2 Selection API,
specifically it should implement support for the
`VIDIOC_SUBDEV_G_SELECTION`_ ioctl with support for the following selection