diff --git a/ledd.proto b/ledd.proto
index ed88034..bada61f 100644
--- a/ledd.proto
+++ b/ledd.proto
@@ -7,19 +7,20 @@ import "client.proto";
 import "google/protobuf/any.proto";
 import "google/protobuf/empty.proto";
 
-service LedDService {
-    rpc getLED (LED) returns (RPCResponse) {}
-    rpc getLEDs (google.protobuf.Empty) returns (RPCResponse) {}
-    rpc addLED (LED) returns (RPCResponse) {}
-    rpc addLEDGroup (LEDGroup) returns (RPCResponse) {}
-    rpc addLEDGroups (google.protobuf.Empty) returns (RPCResponse) {}
-    rpc removeLED(LED) returns (RPCResponse) {}
-    rpc removeLEDGroup(LEDGroup) returns (RPCResponse) {}
-    rpc addClient(Client) returns (RPCResponse) {}
-    rpc removeClient(Client) returns (RPCResponse) {}
-    rpc init(Client) returns (LedD) {}
-    rpc updateClient(Client) returns (RPCResponse) {}
-
+service LEDInterface {
+    rpc GetLED (LED) returns (RPCResponse) {}
+    rpc ListLED (google.protobuf.Empty) returns (stream LED) {}
+    rpc AddLED (LED) returns (RPCResponse) {}
+    rpc AddLEDGroup (LEDGroup) returns (RPCResponse) {}
+    rpc ListLEDGroup (google.protobuf.Empty) returns (stream LEDGroup) {}
+    rpc RemoveLED(LED) returns (RPCResponse) {}
+    rpc RemoveLEDGroup(LEDGroup) returns (RPCResponse) {}
+    rpc AddClient(Client) returns (RPCResponse) {}
+    rpc RemoveClient(Client) returns (RPCResponse) {}
+    rpc Init(Client) returns (LedD) {}
+    rpc UpdateClient(Client) returns (RPCResponse) {}
+    rpc UpdateLED(stream LED) returns (stream LED) {}
+    rpc UpdateLEDGroup(stream LEDGroup) returns (stream LEDGroup) {}
 }
 
 message LedD {