From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Document the new struct media_v2_pad 'index' field.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Acked-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
.../media/uapi/mediactl/media-ioc-g-topology.rst | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/Documentation/media/uapi/mediactl/media-ioc-g-topology.rst b/Documentation/media/uapi/mediactl/media-ioc-g-topology.rst
index a3f259f83b25..bae2b4db89cc 100644
--- a/Documentation/media/uapi/mediactl/media-ioc-g-topology.rst
+++ b/Documentation/media/uapi/mediactl/media-ioc-g-topology.rst
@@ -176,7 +176,7 @@ desired arrays with the media graph elements.
* - struct media_v2_intf_devnode
- ``devnode``
- Used only for device node interfaces. See
- :c:type:`media_v2_intf_devnode` for details..
+ :c:type:`media_v2_intf_devnode` for details.
.. tabularcolumns:: |p{1.6cm}|p{3.2cm}|p{12.7cm}|
@@ -218,7 +218,15 @@ desired arrays with the media graph elements.
- Pad flags, see :ref:`media-pad-flag` for more details.
* - __u32
- - ``reserved``\ [5]
+ - ``index``
+ - Pad index, starts at 0. Only valid if ``MEDIA_V2_PAD_HAS_INDEX(media_version)``
+ returns true. The ``media_version`` is defined in struct
+ :c:type:`media_device_info` and can be retrieved using
+ :ref:`MEDIA_IOC_DEVICE_INFO`. Pad indices are stable. If new pads are added
+ for an entity in the future, then those will be added at the end.
+
+ * - __u32
+ - ``reserved``\ [4]
- Reserved for future extensions. Drivers and applications must set
this array to zero.
--
2.18.0
