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-rw-r--r--Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
index 87698c15c027..37dad2f4df8c 100644
--- a/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
+++ b/Documentation/userspace-api/media/v4l/ext-ctrls-image-process.rst
@@ -20,6 +20,8 @@ Image Process Control IDs
``V4L2_CID_IMAGE_PROC_CLASS (class)``
The IMAGE_PROC class descriptor.
+.. _v4l2-cid-link-freq:
+
``V4L2_CID_LINK_FREQ (integer menu)``
Data bus frequency. Together with the media bus pixel code, bus type
(clock cycles per sample), the data bus frequency defines the pixel

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