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| author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2023-10-17 13:31:19 +0300 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-12-13 13:21:20 +0100 |
| commit | cff18d8f8bf158701da815c8443c2363abb945ad (patch) | |
| tree | 4bfd80e8d1154761048cc656d5c2f22dbd8a080c /Documentation/driver-api | |
| parent | ab8d7194acd1fea1702fff41a1ec93e458b6dcbf (diff) | |
| download | linux-cff18d8f8bf158701da815c8443c2363abb945ad.tar.gz | |
media: Documentation: BT.601 is not a bus
BT.601 is not actually a bus specification, leaving parallel bus without a
specification to refer to. Fix this.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'Documentation/driver-api')
| -rw-r--r-- | Documentation/driver-api/media/camera-sensor.rst | 4 | ||||
| -rw-r--r-- | Documentation/driver-api/media/tx-rx.rst | 13 |
2 files changed, 9 insertions, 8 deletions
diff --git a/Documentation/driver-api/media/camera-sensor.rst b/Documentation/driver-api/media/camera-sensor.rst index 7a3c610e4c7bff..b4920b34cebcc7 100644 --- a/Documentation/driver-api/media/camera-sensor.rst +++ b/Documentation/driver-api/media/camera-sensor.rst @@ -9,8 +9,8 @@ This document covers the in-kernel APIs only. For the best practices on userspace API implementation in camera sensor drivers, please see :ref:`media_using_camera_sensor_drivers`. -CSI-2 and parallel (BT.601 and BT.656) busses ---------------------------------------------- +CSI-2, parallel and BT.656 buses +-------------------------------- Please see :ref:`transmitter-receiver`. diff --git a/Documentation/driver-api/media/tx-rx.rst b/Documentation/driver-api/media/tx-rx.rst index e1e9258dd86246..7c70b9d106346a 100644 --- a/Documentation/driver-api/media/tx-rx.rst +++ b/Documentation/driver-api/media/tx-rx.rst @@ -6,8 +6,8 @@ Pixel data transmitter and receiver drivers =========================================== V4L2 supports various devices that transmit and receive pixel data. Examples of -these devices include a camera sensor, a TV tuner and a parallel or a CSI-2 -receiver in an SoC. +these devices include a camera sensor, a TV tuner and a parallel, a BT.656 or a +CSI-2 receiver in an SoC. Bus types --------- @@ -22,12 +22,13 @@ the host SoC. It is defined by the `MIPI alliance`_. .. _`MIPI alliance`: https://www.mipi.org/ -Parallel -^^^^^^^^ +Parallel and BT.656 +^^^^^^^^^^^^^^^^^^^ -`BT.601`_ and `BT.656`_ are the most common parallel busses. +The parallel and `BT.656`_ buses transport one bit of data on each clock cycle +per data line. The parallel bus uses synchronisation and other additional +signals whereas BT.656 embeds synchronisation. -.. _`BT.601`: https://en.wikipedia.org/wiki/Rec._601 .. _`BT.656`: https://en.wikipedia.org/wiki/ITU-R_BT.656 Transmitter drivers |