diff --git a/aasdk_proto/AVInputOpenRequestMessage.proto b/aasdk_proto/AVInputOpenRequestMessage.proto
index a5fb037..496ee4b 100644
--- a/aasdk_proto/AVInputOpenRequestMessage.proto
+++ b/aasdk_proto/AVInputOpenRequestMessage.proto
@@ -23,7 +23,7 @@ package f1x.aasdk.proto.messages;
 message AVInputOpenRequest
 {
 	required bool open = 1;
-	required bool anc = 2;
-	required bool ec = 3;
-	required int32 max_unacked = 4;
+	optional bool anc = 2;
+	optional bool ec = 3;
+	optional int32 max_unacked = 4;
 }
diff --git a/aasdk_proto/InputChannelMessageIdsEnum.proto b/aasdk_proto/InputChannelMessageIdsEnum.proto
index c9ea77f..c507f15 100644
--- a/aasdk_proto/InputChannelMessageIdsEnum.proto
+++ b/aasdk_proto/InputChannelMessageIdsEnum.proto
@@ -28,6 +28,5 @@ message InputChannelMessage
         INPUT_EVENT_INDICATION = 0x8001;
         BINDING_REQUEST = 0x8002;
         BINDING_RESPONSE = 0x8003;
-		
     }
 }
diff --git a/aasdk_proto/TouchActionEnum.proto b/aasdk_proto/TouchActionEnum.proto
index 412c856..7d889e1 100644
--- a/aasdk_proto/TouchActionEnum.proto
+++ b/aasdk_proto/TouchActionEnum.proto
@@ -27,7 +27,7 @@ message TouchAction
         PRESS = 0;
         RELEASE = 1;
         DRAG = 2;
-        POINTER_DOWN=5;
-        POINTER_UP=6;
+        POINTER_DOWN = 5;
+        POINTER_UP = 6;
     }
 }
diff --git a/aasdk_proto/TouchEventData.proto b/aasdk_proto/TouchEventData.proto
index b5335f6..bfab6ba 100644
--- a/aasdk_proto/TouchEventData.proto
+++ b/aasdk_proto/TouchEventData.proto
@@ -26,6 +26,6 @@ package f1x.aasdk.proto.data;
 message TouchEvent
 {
     repeated data.TouchLocation touch_location = 1;
-    required uint32 action_index = 2;
+    optional uint32 action_index = 2;
     required enums.TouchAction.Enum touch_action = 3;
 }