usba_common_unregister_events
usba_common_unregister_events(usb_ia->ia_dip, usb_ia->ia_n_ifs);
usba_common_unregister_events(usb_mid->mi_dip, 1);
usba_common_unregister_events(dip, if_num);
void usba_common_unregister_events(dev_info_t *, uint_t);