[libcamera-devel] [PATCH 1/2] libcamera: MediaEntity: expose the entity flags

[Niklas Söderlund]

The media entity flags can be useful for pipeline handlers to find the
default device in a media graph which is marked with the
MEDIA_ENT_FL_DEFAULT flag. This will be especially useful for the UVC
pipeline handler where the entity names differ per device.

Signed-off-by: Niklas Söderlund <niklas.soderlund at ragnatech.se>
---
 src/libcamera/include/media_object.h |  2 ++
 src/libcamera/media_object.cpp       | 13 ++++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/libcamera/include/media_object.h b/src/libcamera/include/media_object.h
index 64095bec8606bd32..2a3ffc06c876d792 100644
--- a/src/libcamera/include/media_object.h
+++ b/src/libcamera/include/media_object.h
@@ -85,6 +85,7 @@ class MediaEntity : public MediaObject
 public:
 	const std::string &name() const { return name_; }
 	unsigned int function() const { return function_; }
+	unsigned int flags() const { return flags_; }
 	const std::string &deviceNode() const { return deviceNode_; }
 	unsigned int deviceMajor() const { return major_; }
 	unsigned int deviceMinor() const { return minor_; }
@@ -106,6 +107,7 @@ private:
 
 	std::string name_;
 	unsigned int function_;
+	unsigned int flags_;
 	std::string deviceNode_;
 	unsigned int major_;
 	unsigned int minor_;
diff --git a/src/libcamera/media_object.cpp b/src/libcamera/media_object.cpp
index baf9aeaa8fffe1a6..f6abcd8676a3866d 100644
--- a/src/libcamera/media_object.cpp
+++ b/src/libcamera/media_object.cpp
@@ -265,6 +265,16 @@ void MediaPad::addLink(MediaLink *link)
  * \return The entity's function
  */
 
+/**
+ * \fn MediaEntity::flags()
+ * \brief Retrieve the entity's flags
+ *
+ * Media entity flags are expressed using the MEDIA_ENT_FL_* macros
+ * defined by the Media Controller API.
+ *
+ * \return The entity's flags
+ */
+
 /**
  * \fn MediaEntity::deviceNode()
  * \brief Retrieve the entity's device node path, if any
@@ -358,7 +368,8 @@ MediaEntity::MediaEntity(MediaDevice *dev,
 			 const struct media_v2_entity *entity,
 			 unsigned int major, unsigned int minor)
 	: MediaObject(dev, entity->id), name_(entity->name),
-	  function_(entity->function), major_(major), minor_(minor)
+	  function_(entity->function), flags_(entity->flags),
+	  major_(major), minor_(minor)
 {
 }
 
-- 
2.20.1