ADA_FLAG_CAN_DMA
softc->flags |= ADA_FLAG_CAN_DMA;
softc->flags &= ~ADA_FLAG_CAN_DMA;
if (softc->flags & ADA_FLAG_CAN_DMA) {
/*protocol*/ softc->flags & ADA_FLAG_CAN_DMA ?
/*protocol*/ softc->flags & ADA_FLAG_CAN_DMA ?
/*protocol*/ softc->flags & ADA_FLAG_CAN_DMA ?
/*protocol*/ softc->flags & ADA_FLAG_CAN_DMA ?