diff --git a/lib/parser.js b/lib/parser.js
index e5fafa5..f4b3874 100644
--- a/lib/parser.js
+++ b/lib/parser.js
@@ -11,10 +11,19 @@ module.exports = () => {
 
   const s = new stream.Writable();
 
-  // const lifee = new EventEmitter();
+  
+  // gets called by c with 1 argument, a number
   const lifemit = s.emit.bind(s);
 
   const triee = new EventEmitter();
+
+  // gets called by c with 5 arguments
+  // string        eventName
+  // number        state->time
+  // int           command
+  // int           state->value
+  // int           state->mask
+
   const triemit = triee.emit.bind(triee);
   let triemit2 = triemit;