Warnings in the MIDI library were fixed upstream: FortySevenEffects/arduino_midi_library@5b3e4ac.

Author: Lauszus

.travis.yml

@@ -51,7 +51,7 @@ env:
     - PLATFORMIO_CI_SRC=examples/PSBuzz
     # - PLATFORMIO_CI_SRC=examples/testusbhostFAT
     - PLATFORMIO_CI_SRC=examples/USB_desc
-    # - PLATFORMIO_CI_SRC=examples/USBH_MIDI/bidrectional_converter
+    - PLATFORMIO_CI_SRC=examples/USBH_MIDI/bidrectional_converter
     - PLATFORMIO_CI_SRC=examples/USBH_MIDI/eVY1_sample
     - PLATFORMIO_CI_SRC=examples/USBH_MIDI/USB_MIDI_converter
     - PLATFORMIO_CI_SRC=examples/USBH_MIDI/USB_MIDI_converter_multi