ADT1_BD_SHIFT
(ADT1_CTRL_ASYNC_BD_MASK << (ADT1_BD_SHIFT + shift));
((buffer_size - 1) << (ADT1_BD_SHIFT + shift));
(ADT1_ISOC_SYNC_BD_MASK << (ADT1_BD_SHIFT + shift));
((buffer_size - 1) << (ADT1_BD_SHIFT + shift));