wdc —
WD100x compatible hard disk controller driver
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?"
.Cd "# macppc"
.Cd "wdc* at macobio?"
.Cd "wdc* at kauaiata?"
.Cd "# landisk"
.Cd wdc0 at obio? port 0x14000000 irq 10
.Cd "# all architectures"
.Cd "wdc* at pcmcia?"
.Cd "atapiscsi* at wdc?* flags 0x0000"
.Cd "wd* at wdc? flags 0x0000"
DESCRIPTION
The
wdc
driver provides the basic functions for the
wd(4)
and
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
pciide(4)
driver may provide more functionality.
For the
isa(4)
front-end, setting
-flags
to 0x01 enables 32-bit I/O negotiation.
This is known to cause problems with some motherboards.