$OpenBSD: wdc.4,v 1.16 2007/05/31 19:19:53 jmc Exp $
$NetBSD: wdc.4,v 1.4 1999/05/19 14:44:02 bouyer Exp $

Copyright (c) 1998 Manuel Bouyer.

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.Dd $Mdocdate$ .Dt WDC 4 .Os .Sh NAME .Nm wdc .Nd WD100x compatible hard disk controller driver .Sh SYNOPSIS .Cd "# alpha/i386" .Cd "wdc0 at isa? port 0x1f0 irq 14 flags 0x00" .Cd "wdc1 at isa? port 0x170 irq 15 flags 0x00" .Cd "wdc* at isapnp?"

p .Cd "# macppc" .Cd "wdc* at macobio?" .Cd "wdc* at kauaiata?"

p .Cd "# landisk" .Cd wdc0 at obio? port 0x14000000 irq 10

p .Cd "# all architectures" .Cd "wdc* at pcmcia?"

p .Cd "atapiscsi* at wdc?* flags 0x0000" .Cd "wd* at wdc? flags 0x0000" .Sh DESCRIPTION The .Nm driver provides the basic functions for the .Xr wd 4 and .Xr atapiscsi 4 drivers. It supports IDE and EIDE controllers, as well as MFM, RLL, and ESDI on the ISA bus. PCI IDE controllers in legacy mode are also supported, but the .Xr pciide 4 driver may provide more functionality.

p For the .Xr isa 4 front-end, setting .Cm flags to 0x01 enables 32-bit I/O negotiation. This is known to cause problems with some motherboards. .Sh SEE ALSO .Xr atapiscsi 4 , .Xr intro 4 , .Xr isa 4 , .Xr isapnp 4 , .Xr macobio 4 , .Xr obio 4 , .Xr pciide 4 , .Xr pcmcia 4 , .Xr scsi 4 , .Xr wd 4