#include #include #include #define USB_MIDI_API(driver) ((struct UsbMidiApi*)(driver)->api) extern "C" { const struct DeviceType USB_HOST_MIDI_TYPE = { .name = "usb-host-midi", }; void usb_midi_set_callback(struct Device* device, usb_midi_message_cb_t callback, void* user_data) { auto* api = USB_MIDI_API(device_get_driver(device)); api->set_callback(device, callback, user_data); } bool usb_midi_is_connected(struct Device* device) { auto* api = USB_MIDI_API(device_get_driver(device)); return api->is_connected(device); } } // extern "C"