+ std::vector<std::string> enumerate_midi_options () const;
+ int set_midi_option (const std::string&);
+ std::string midi_option () const;
+
+ std::vector<DeviceStatus> enumerate_midi_devices () const {
+ return std::vector<AudioBackend::DeviceStatus> ();
+ }
+ int set_midi_device_enabled (std::string const, bool) {
+ return 0;
+ }
+ bool midi_device_enabled (std::string const) const {
+ return true;
+ }
+ bool can_set_systemic_midi_latencies () const {
+ return false;
+ }
+ bool can_set_period_size () const {
+ return true;
+ }
+