/* USB.find_busses */ static VALUE rusb_find_busses(VALUE cUSB) { st_foreach(bus_objects, revoke_data_i, 0); st_foreach(device_objects, revoke_data_i, 0); st_foreach(config_descriptor_objects, revoke_data_i, 0); st_foreach(interface_objects, revoke_data_i, 0); st_foreach(interface_descriptor_objects, revoke_data_i, 0); st_foreach(endpoint_descriptor_objects, revoke_data_i, 0); return INT2NUM(usb_find_busses()); }