Enumerator at include/linux/ata.h, line 164 References: drivers/ata/ata_piix.c, line 1066 drivers/ata/libata-sff.c, line 2866 drivers/ata/libata-sff.c, line 2937 drivers/ata/pata_arasan_cf.c, line 388 drivers/ata/pata_arasan_cf.c, line 616 drivers/ata/pata_arasan_cf.c, line 651 drivers/ata/pata_bf54x.c, line 1337 drivers/ata/pata_ep93xx.c, line 790 drivers/ata/pata_hpt37x.c, line 495 drivers/ata/pata_hpt3x3.c, line 120 drivers/ata/pata_macio.c, line 670 drivers/ata/pata_macio.c, line 696 drivers/ata/pata_mpc52xx.c, line 590 drivers/ata/pata_ns87415.c, line 135 drivers/ata/pata_ns87415.c, line 187 drivers/ata/pata_pxa.c, line 175 drivers/ata/pata_scc.c, line 771 drivers/ata/sata_mv.c, line 1974 drivers/ata/sata_mv.c, line 1975 drivers/ata/sata_nv.c, line 2119 drivers/ide/ide-dma-sff.c, line 217 drivers/ide/ide-dma-sff.c, line 250 drivers/ide/ide-dma-sff.c, line 304 drivers/ide/ide-dma-sff.c, line 306 drivers/ide/tx4939ide.c, line 226 drivers/ide/tx4939ide.c, line 330 include/linux/ata.h, line 164