Symbol: ATA_DNXFER_PIO
drivers/ata/libata-core.c
3446
case ATA_DNXFER_PIO:
drivers/ata/libata-eh.c
1937
{ ATA_DNXFER_PIO, ATA_DNXFER_FORCE_PIO0 };
drivers/ata/libata-eh.c
3765
ata_down_xfermask_limit(dev, ATA_DNXFER_PIO);