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-rw-r--r--Documentation/userspace-api/media/mediactl/media-controller-model.rst15
1 files changed, 7 insertions, 8 deletions
diff --git a/Documentation/userspace-api/media/mediactl/media-controller-model.rst b/Documentation/userspace-api/media/mediactl/media-controller-model.rst
index 865e73d934d6..78bfdfb2a322 100644
--- a/Documentation/userspace-api/media/mediactl/media-controller-model.rst
+++ b/Documentation/userspace-api/media/mediactl/media-controller-model.rst
@@ -1,11 +1,4 @@
-.. Permission is granted to copy, distribute and/or modify this
-.. document under the terms of the GNU Free Documentation License,
-.. Version 1.1 or any later version published by the Free Software
-.. Foundation, with no Invariant Sections, no Front-Cover Texts
-.. and no Back-Cover Texts. A copy of the license is included at
-.. Documentation/userspace-api/media/fdl-appendix.rst.
-..
-.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
+.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. _media-controller-model:
@@ -40,3 +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. \ No newline at end of file