isd200_action
transferStatus = isd200_action( us, ACTION_IDENTIFY,
transferStatus = isd200_action( us, ACTION_READ_STATUS,
transferStatus = isd200_action( us, ACTION_SOFT_RESET, NULL, 0 );
transferStatus = isd200_action( us, ACTION_RESET, NULL, 0 );
transferStatus = isd200_action( us, ACTION_REENABLE, NULL, 0 );
status = isd200_action( us, ACTION_ENUM, NULL, master_slave );
status = isd200_action( us, ACTION_READ_STATUS,