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| author | Daniel Scally <djrscally@gmail.com> | 2022-03-03 01:03:01 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-04-24 09:58:16 +0300 |
| commit | 4e4dab4bb6029dbee63f12a249ddc44b0124ea63 (patch) | |
| tree | e929904c89ca6d746e4334b6520ee2daa17dd0bd /Documentation/userspace-api/media/mediactl/media-controller-model.rst | |
| parent | af3ed78ecbf367008ae4852cd676a75ce71db35f (diff) | |
| download | linux-4e4dab4bb6029dbee63f12a249ddc44b0124ea63.tar.xz | |
media: media.h: Add new media link type
To describe in the kernel the connection between devices and their
supporting peripherals (for example, a camera sensor and the vcm
driving the focusing lens for it), add a new type of media link
to introduce the concept of these ancillary links.
Add some elements to the uAPI documentation to explain the new link
type, their purpose and some aspects of their current implementation.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'Documentation/userspace-api/media/mediactl/media-controller-model.rst')
| -rw-r--r-- | Documentation/userspace-api/media/mediactl/media-controller-model.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/mediactl/media-controller-model.rst b/Documentation/userspace-api/media/mediactl/media-controller-model.rst index 222cb99debb5..78bfdfb2a322 100644 --- a/Documentation/userspace-api/media/mediactl/media-controller-model.rst +++ b/Documentation/userspace-api/media/mediactl/media-controller-model.rst @@ -33,3 +33,9 @@ are: - An **interface link** is a point-to-point bidirectional control connection between a Linux Kernel interface and an entity. + +- An **ancillary link** is a point-to-point connection denoting that two + entities form a single logical unit. For example this could represent the + fact that a particular camera sensor and lens controller form a single + physical module, meaning this lens controller drives the lens for this + camera sensor.
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