Merge pull request arduino#138 from hathach/master

fix incorrect midi descriptor template

Author: ladyada

cores/arduino/Adafruit_TinyUSB_Core/tinyusb/src/device/usbd.h

@@ -179,7 +179,7 @@ TU_ATTR_WEAK void tud_resume_cb(void);
 // MIDI simple descriptor
 // - 1 Embedded Jack In connected to 1 External Jack Out
 // - 1 Embedded Jack out connected to 1 External Jack In
-#define TUD_MIDI_DESCRIPTOR(_itfnum, _stridx, _epin, _epout, _epsize) \
+#define TUD_MIDI_DESCRIPTOR(_itfnum, _stridx, _epout, _epin, _epsize) \
   /* Audio Control (AC) Interface */\
   9, TUSB_DESC_INTERFACE, _itfnum, 0, 0, TUSB_CLASS_AUDIO, AUDIO_SUBCLASS_CONTROL, AUDIO_PROTOCOL_V1, _stridx,\
   /* AC Header */\