diff --git a/tuhi/wacom.py b/tuhi/wacom.py
index 0b572bd..0d4bc7a 100644
--- a/tuhi/wacom.py
+++ b/tuhi/wacom.py
@@ -545,6 +545,13 @@ class WacomProtocolLowLevelComm(GObject.Object):
 
         return args
 
+    # The callback used by the protocol messages
+    def nordic_data_exchange(self, request, requires_reply=False, userdata=None):
+        if request is not None:
+            self.send_nordic_command(request.opcode, request)
+        if requires_reply:
+            return self.wait_nordic_data(expected_opcode=None, timeout=5)
+
 
 class WacomRegisterHelper(WacomProtocolLowLevelComm):
     '''