Fix neurosky runtime error

driver.go

@@ -103,7 +103,12 @@ func (d *Driver) Events() map[string]*Event {
 }
 
 func (d *Driver) Event(name string) *Event {
-	return d.events[name]
+	e, ok := d.events[name]
+	if ok {
+		return e
+	} else {
+		panic(fmt.Sprintf("Unknown Driver Event: %v", name))
+	}
 }
 
 func (d *Driver) AddEvent(name string) {

platforms/neurosky/neurosky_driver.go

@@ -90,29 +90,29 @@ func (n *NeuroskyDriver) parsePacket(data []byte) {
 		b, _ := buf.ReadByte()
 		switch b {
 		case CodeEx:
-			gobot.Publish(n.Event("Extended"), nil)
+			gobot.Publish(n.Event("extended"), nil)
 		case CodeSignalQuality:
 			ret, _ := buf.ReadByte()
-			gobot.Publish(n.Event("Signal"), ret)
+			gobot.Publish(n.Event("signal"), ret)
 		case CodeAttention:
 			ret, _ := buf.ReadByte()
-			gobot.Publish(n.Event("Attention"), ret)
+			gobot.Publish(n.Event("attention"), ret)
 		case CodeMeditation:
 			ret, _ := buf.ReadByte()
-			gobot.Publish(n.Event("Meditation"), ret)
+			gobot.Publish(n.Event("meditation"), ret)
 		case CodeBlink:
 			ret, _ := buf.ReadByte()
-			gobot.Publish(n.Event("Blink"), ret)
+			gobot.Publish(n.Event("blink"), ret)
 		case CodeWave:
 			buf.Next(1)
 			var ret = make([]byte, 2)
 			buf.Read(ret)
-			gobot.Publish(n.Event("Wave"), ret)
+			gobot.Publish(n.Event("wave"), ret)
 		case CodeAsicEEG:
 			var ret = make([]byte, 25)
 			i, _ := buf.Read(ret)
 			if i == 25 {
-				gobot.Publish(n.Event("EEG"), n.parseEEG(ret))
+				gobot.Publish(n.Event("eeg"), n.parseEEG(ret))
 			}
 		}
 	}