better USBMIDI_CREATE_INSTANCE MACRO

Author: lathoub

examples/NoteOnOffEverySec/NoteOnOffEverySec.ino

@@ -22,6 +22,7 @@ void setup()
 {
   Serial.begin(115200);
   while (!Serial);
+  
   MIDI.begin();
   MIDI.setHandleNoteOn(handleNoteOn);
   MIDI.setHandleNoteOff(handleNoteOff);
@@ -34,4 +35,4 @@ void setup()
 void loop()
 {
   MIDI.read();
-}
+}

src/USB-MIDI.h

@@ -170,12 +170,11 @@ class usbMidiTransport
 
 /*! \brief
  */
-#define USBMIDI_CREATE_INSTANCE(CABLENR)  \
-    typedef USBMIDI_NAMESPACE::usbMidiTransport __umt;\
-    __umt usbMIDI(CABLENR);\
-    MIDI_NAMESPACE::MidiInterface<__umt> MIDI((__umt&)usbMIDI);
+#define USBMIDI_CREATE_INSTANCE(CableNr, Name)  \
+    USBMIDI_NAMESPACE::usbMidiTransport usb##Name(CableNr);\
+    MIDI_NAMESPACE::MidiInterface<USBMIDI_NAMESPACE::usbMidiTransport> Name((USBMIDI_NAMESPACE::usbMidiTransport&)usb##Name);
 
 #define USBMIDI_CREATE_DEFAULT_INSTANCE()  \
-    USBMIDI_CREATE_INSTANCE(0)
+    USBMIDI_CREATE_INSTANCE(0, MIDI)
 
 END_USBMIDI_NAMESPACE