On 06/05/2023 00:52, Sakari Ailus wrote:
Internal source pads will be used as routing endpoints in V4L2
[GS]_ROUTING IOCTLs, to indicate that the stream begins in the entity.
Also prevent creating links to pads that have been flagged as internal.
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
---
.../userspace-api/media/mediactl/media-types.rst | 7 +++++++
drivers/media/mc/mc-entity.c | 8 +++++++-
include/uapi/linux/media.h | 1 +
3 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/Documentation/userspace-api/media/mediactl/media-types.rst b/Documentation/userspace-api/media/mediactl/media-types.rst
index 0ffeece1e0c8..c724139ad46c 100644
--- a/Documentation/userspace-api/media/mediactl/media-types.rst
+++ b/Documentation/userspace-api/media/mediactl/media-types.rst
@@ -361,6 +361,7 @@ Types and flags used to represent the media graph elements
.. _MEDIA-PAD-FL-SINK:
.. _MEDIA-PAD-FL-SOURCE:
.. _MEDIA-PAD-FL-MUST-CONNECT:
+.. _MEDIA-PAD-FL-INTERNAL-SOURCE:
.. flat-table:: Media pad flags
:header-rows: 0
@@ -382,6 +383,12 @@ Types and flags used to represent the media graph elements
when this flag isn't set; the absence of the flag doesn't imply
there is none.
+ * - ``MEDIA_PAD_FL_INTERNAL_SOURCE``
+ - This flag indicates an internal pad that has no external
+ connections. Such a pad may not be connected with a link. The internal
"must not"? Or "shall not"?
Tomi
