.\"	$NetBSD: hptide.4,v 1.3 2009/10/19 18:41:08 bouyer Exp $
.\"
.\" Copyright (c) 2003 Manuel Bouyer.
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.Dd October 8, 2003
.Dt HPTIDE 4
.Os
.Sh NAME
.Nm hptide
.Nd Triones/Highpoint IDE disk controllers driver
.Sh SYNOPSIS
.Cd "hptide* at pci? dev ? function ? flags 0x0000"
.Sh DESCRIPTION
The
.Nm
driver supports the Triones/Highpoint HPT366, HPT370, HPT370A, HPT372 and
HPT374 IDE controllers, and provides the
interface with the hardware for the
.Xr ata 4
driver.
.Pp
The 0x0002 flag forces the
.Nm
driver to disable DMA on chipsets for which DMA would normally be
enabled.
This can be used as a debugging aid, or to work around
problems where the IDE controller is wired up to the system incorrectly.
.Sh SEE ALSO
.Xr ata 4 ,
.Xr atapi 4 ,
.Xr intro 4 ,
.Xr pci 4 ,
.Xr pciide 4 ,
.Xr wd 4 ,
.Xr wdc 4
.Sh BUGS
The timings used for the PIO and DMA modes for controllers listed above
are for a PCI bus running at 30 or 33 MHz.
This driver may not work properly on overclocked systems.