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. 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, The sensor driver should implement support for the V4L2 Selection API,
specifically it should implement support for the specifically it should implement support for the
`VIDIOC_SUBDEV_G_SELECTION`_ ioctl with support for the following selection `VIDIOC_SUBDEV_G_SELECTION`_ ioctl with support for the following selection