AAC_CCB_DATA_IN
((ac->ac_flags & AAC_CCB_DATA_IN) ? BUS_DMA_READ : BUS_DMA_WRITE));
(ac->ac_flags & AAC_CCB_DATA_IN) ? BUS_DMASYNC_PREREAD :
(ac->ac_flags & AAC_CCB_DATA_IN) ? BUS_DMASYNC_POSTREAD :
ac = aac_ccb_alloc(aac, (dowrite ? AAC_CCB_DATA_OUT : AAC_CCB_DATA_IN));