libcamera: controls: Add support for byte controls

Add support for byte values to the control framework and to the control
serializer.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/libcamera/control_serializer.cpp b/src/libcamera/control_serializer.cpp
index 5feaaa96..6c676811 100644
--- a/src/libcamera/control_serializer.cpp
+++ b/src/libcamera/control_serializer.cpp
@@ -153,6 +153,12 @@ void ControlSerializer::store(const ControlValue &value,
 		break;
 	}
 
+	case ControlTypeByte: {
+		uint8_t data = value.get<uint8_t>();
+		buffer.write(&data);
+		break;
+	}
+
 	case ControlTypeInteger32: {
 		int32_t data = value.get<int32_t>();
 		buffer.write(&data);
@@ -331,6 +337,12 @@ ControlValue ControlSerializer::load<ControlValue>(ControlType type,
 		return ControlValue(value);
 	}
 
+	case ControlTypeByte: {
+		uint8_t value;
+		b.read(&value);
+		return ControlValue(value);
+	}
+
 	case ControlTypeInteger32: {
 		int32_t value;
 		b.read(&value);