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| author | Jacopo Mondi <jacopo.mondi@ideasonboard.com> | 2023-12-21 11:12:33 +0100 |
|---|---|---|
| committer | Jacopo Mondi <jacopo.mondi@ideasonboard.com> | 2023-12-29 11:33:29 +0100 |
| commit | a4e6a5085b465216546b802e6bb9d55ecf278c63 (patch) | |
| tree | d884cbe4c584d4f09626c3b0ba4359eefc333216 /Documentation/guides/pipeline-handler.rst | |
| parent | 89289ceeb487fa305025802277222a0f21e9307e (diff) | |
libcamera: Add 'required' property to controls
Add to the ControlId class a 'required' boolean flag that determine
if the control (or property) is mandatory to be supported by a Camera
in order to comply with the libcamera API specification.
Add support for a 'required' field to the controls and properties yaml
file definition and control generation scripts.
Also plumb support for the flag in the control serializer component
to allow pass the information across IPC borders.
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Diffstat (limited to 'Documentation/guides/pipeline-handler.rst')
| -rw-r--r-- | Documentation/guides/pipeline-handler.rst | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst index 26dc9358..ad2a5beb 100644 --- a/Documentation/guides/pipeline-handler.rst +++ b/Documentation/guides/pipeline-handler.rst @@ -610,10 +610,15 @@ information can be found in the `ControlInfoMap`_ class documentation. .. _ControlInfoMap: https://libcamera.org/api-html/classlibcamera_1_1ControlInfoMap.html Pipeline handlers register controls to expose the tunable device and IPA -parameters to applications. Our example pipeline handler only exposes trivial -controls of the video device, by registering a ``ControlId`` instance with -associated values for each supported V4L2 control but demonstrates the mapping -of V4L2 Controls to libcamera ControlIDs. +parameters to applications and register properties to expose the Camera +immutable characteristics. Controls and properties which have the ``required`` +field specified in the YAML definition are mandatory to be supported by a Camera +in order for it to comply with the libcamera API specification. + +Our example pipeline handler only exposes trivial controls of the video device, +by registering a ``ControlId`` instance with associated values for each +supported V4L2 control but demonstrates the mapping of V4L2 Controls to +libcamera ControlIDs. Complete the initialization of the ``VividCameraData`` class by adding the following code to the ``VividCameraData::init()`` function to initialise the |