2 files changed, 24 insertions, 12 deletions
diff --git a/src/libcamera/control_serializer.cpp b/src/libcamera/control_serializer.cpp
index 803ac16c..2b66ab97 100644
--- a/src/libcamera/control_serializer.cpp
+++ b/src/libcamera/control_serializer.cpp
@@ -27,17 +27,6 @@ namespace libcamera {
 
 LOG_DEFINE_CATEGORY(Serializer)
 
-namespace {
-
-static constexpr size_t ControlValueSize[] = {
-	[ControlTypeNone]	= 1,
-	[ControlTypeBool]	= sizeof(bool),
-	[ControlTypeInteger32]	= sizeof(int32_t),
-	[ControlTypeInteger64]	= sizeof(int64_t),
-};
-
-} /* namespace */
-
 /**
  * \class ControlSerializer
  * \brief Serializer and deserializer for control-related classes
@@ -106,7 +95,7 @@ void ControlSerializer::reset()
 
 size_t ControlSerializer::binarySize(const ControlValue &value)
 {
-	return ControlValueSize[value.type()];
+	return value.data().size_bytes();
 }
 
 size_t ControlSerializer::binarySize(const ControlRange &range)
diff --git a/src/libcamera/controls.cpp b/src/libcamera/controls.cpp
index 76230a05..e5131880 100644
--- a/src/libcamera/controls.cpp
+++ b/src/libcamera/controls.cpp
@@ -47,6 +47,17 @@ namespace libcamera {
 
 LOG_DEFINE_CATEGORY(Controls)
 
+namespace {
+
+static constexpr size_t ControlValueSize[] = {
+	[ControlTypeNone]		= 1,
+	[ControlTypeBool]		= sizeof(bool),
+	[ControlTypeInteger32]		= sizeof(int32_t),
+	[ControlTypeInteger64]		= sizeof(int64_t),
+};
+
+} /* namespace */
+
 /**
  * \enum ControlType
  * \brief Define the data type of a Control
@@ -92,6 +103,18 @@ ControlValue::ControlValue()
  */
 
 /**
+ * \brief Retrieve the raw data of a control value
+ * \return The raw data of the control value as a span of uint8_t
+ */
+Span<const uint8_t> ControlValue::data() const
+{
+	return {
+		reinterpret_cast<const uint8_t *>(&bool_),
+		ControlValueSize[type_]
+	};
+}
+
+/**
  * \brief Assemble and return a string describing the value
  * \return A string describing the ControlValue
  */