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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 |