diff --git a/.gitignore b/.gitignore
index cbb8e3a..4f750ba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,7 @@ Icon
 Network Trash Folder
 Temporary Items
 .apdisk
+
+# TonUINO
+/sd-card*
+/tools/*.pyc
diff --git a/Tonuino.ino b/Tonuino.ino
index 2cb78d2..510c502 100644
--- a/Tonuino.ino
+++ b/Tonuino.ino
@@ -105,6 +105,15 @@ class Mp3Notify {
     static void OnCardRemoved(uint16_t code) {
       Serial.println(F("SD Karte entfernt "));
     }
+    static void OnUsbOnline(uint16_t code) {
+      Serial.println(F("USB online "));
+    }
+    static void OnUsbInserted(uint16_t code) {
+      Serial.println(F("USB bereit "));
+    }
+    static void OnUsbRemoved(uint16_t code) {
+      Serial.println(F("USB entfernt "));
+    }
 };
 
 static DFMiniMp3<SoftwareSerial, Mp3Notify> mp3(mySoftwareSerial);