NO_DATA_XFER
cdb.direction = NO_DATA_XFER;
cdb.direction = NO_DATA_XFER;
ATA_FLUSH_CACHE, 0, ADD_LBA_MODE, 0, NO_DATA_XFER, 0);
NO_DATA_XFER, 0);
makecommand(pkt, 0, cmd, 0, 0, 0, NO_DATA_XFER, 0);