1  #if defined(USB_SERIAL)
 2  #include "../usb_serial/usb_api.cpp"
 3  #elif defined(USB_HID)
 4  #include "../usb_hid/usb_api.cpp"
 5  #elif defined(USB_SERIAL_HID)
 6  #include "../usb_serial_hid/usb_api.cpp"
 7  #elif defined(USB_DISK) || defined(USB_DISK_SDFLASH)
 8  #include "../usb_disk/usb_api.cpp"
 9  #elif defined(USB_MIDI)
10  #include "../usb_midi/usb_api.cpp"
11  #elif defined(USB_RAWHID)
12  #include "../usb_rawhid/usb_api.cpp"
13  #elif defined(USB_FLIGHTSIM)
14  #include "../usb_flightsim/usb_api.cpp"
15  #endif