Updates for submodule usage

Protocol.py

@@ -2,9 +2,10 @@ from __future__ import annotations
 from typing import Union
 import importlib
 
+
 class Protocol:
     """
-    Generic protocol, inherited by all concrete 
+    Generic protocol, inherited by all concrete protocols.
     """
     
 
@@ -47,7 +48,7 @@ class Protocol:
         :param protocol_data: Dictionary containing the protocol data.
         :param device: Dictionary containing the device metadata.
         """
-        module = importlib.import_module(f"{protocol_name}")
+        module = importlib.import_module(f".{protocol_name}", package="protocols")
         cls = getattr(module, protocol_name)
         return cls(protocol_data, device)