Add Protocol-1 implementation

dynamixel/channel/channel.py

@@ -58,15 +58,12 @@ class Channel:
     
     pass
 
-class Protocol1:
 
-    pass
-
-class Protocol2:
+class Protocol:
 
-    def __init__(self, port_handler):
+    def __init__(self, port_handler, packet_handler):
         self.port_handler = port_handler
-        self.packet_handler = sdk.PacketHandler(2.0)
+        self.packet_handler = packet_handler
         pass
 
     def read(self, servo, row):
@@ -113,3 +110,19 @@ class Protocol2:
         
     pass
 
+
+class Protocol1(Protocol):
+
+    def __init__(self, port_handler):
+        super(Protocol1, self).__init__(port_handler, sdk.PacketHandler(1.0))
+        pass
+
+    pass
+
+class Protocol2(Protocol):
+
+    def __init__(self, port_handler):
+        super(Protocol2, self).__init__(port_handler, sdk.PacketHandler(2.0))
+        pass
+
+    pass