Add a pad flag to indicate that the pad uses multiplexed streams. A pad
with multiplexed streams won't support pad format configuration and e.g.
VIDIOC_SUBDEV_S_FMT should return -ENOIOCTLCMD.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxxxxxxxxx>
---
Documentation/userspace-api/media/mediactl/media-types.rst | 6 ++++++
include/uapi/linux/media.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/Documentation/userspace-api/media/mediactl/media-types.rst b/Documentation/userspace-api/media/mediactl/media-types.rst
index 0a26397bd01d..d1dca50649f9 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-MULTIPLEXED:
.. flat-table:: Media pad flags
:header-rows: 0
@@ -382,6 +383,11 @@ 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_MULTIPLEXED``
+ - The pad has multiplexed streams. A pad with multiplexed streams
+ won't support pad format configuration and e.g. VIDIOC_SUBDEV_S_FMT
+ should return -ENOIOCTLCMD.
+
One and only one of ``MEDIA_PAD_FL_SINK`` and ``MEDIA_PAD_FL_SOURCE``
must be set for every pad.
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index 200fa8462b90..bdaadef80cbd 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -211,6 +211,7 @@ struct media_entity_desc {
#define MEDIA_PAD_FL_SINK (1 << 0)
#define MEDIA_PAD_FL_SOURCE (1 << 1)
#define MEDIA_PAD_FL_MUST_CONNECT (1 << 2)
+#define MEDIA_PAD_FL_MULTIPLEXED (1 << 3)
struct media_pad_desc {
__u32 entity; /* entity ID */
--
2.25.1
