
change tuh_midi_rx/tx_cb() to have xferred_bytes rename tuh_midi_get_num_rx/tx_cables() to tuh_midi_get_rx/tx_cable_count() use default empty callback instead of weak null to be compatible with keil compiler
change tuh_midi_rx/tx_cb() to have xferred_bytes rename tuh_midi_get_num_rx/tx_cables() to tuh_midi_get_rx/tx_cable_count() use default empty callback instead of weak null to be compatible with keil compiler