ATA_IOSIZE
ATA_IOSIZE, RF_ACTIVE)))
ATA_IOSIZE, RF_ACTIVE)))
count = ATA_IOSIZE;
ch->r_io[ATA_CONTROL].offset = 2 + ATA_IOSIZE;
end = start + ATA_IOSIZE - 1;
count = ATA_IOSIZE;