.\" Copyright (c) 1999 Takanori Watanabe
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.\" $FreeBSD: src/share/man/man4/intpm.4,v 1.15 2005/02/13 22:25:17 ru Exp $
.\"
.Dd May 3, 2023
.Dt INTPM 4
.Os
.Sh NAME
.Nm intpm
.Nd Intel PIIX4 Power Management controller driver
.Sh SYNOPSIS
.Cd device pci
.Cd device smbus
.Cd device smb
.Cd device intpm
.Sh DESCRIPTION
The
.Nm
driver provides access to
.Tn Intel PIIX4
compatible Power Management controllers.
Currently, only
.Xr smbus 4
controller function is implemented.
.Sh HARDWARE
The
.Nm
driver supports the following chipsets:
.Pp
.Bl -bullet -compact
.It
Intel 82371AB/82443MX
.It
ATI IXP400
.It
AMD SB600/7x0/8x0/9x0 southbridges
.It
AMD Axx/Hudson/Bolton FCHs
.It
AMD FCH integrated into Family 15h Models 60h-6Fh, 70h-7Fh Processors
.It
AMD FCH integrated into Family 16h Models 00h-0Fh, 30h-3Fh Processors
.El
.Sh SEE ALSO
.Xr amdpm 4 ,
.Xr amdsmb 4 ,
.Xr ichsmb 4 ,
.Xr smb 4 ,
.Xr smbus 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 3.4 .
.Sh AUTHORS
This
manual page was written by
.An Takanori Watanabe Aq Mt takawata@shidahara1.planet.sci.kobe-u.ac.jp .
.Sh BUGS
This device requires IRQ 9 exclusively.
To use this, you should enable
ACPI function in BIOS configuration, or PnP mechanism assigns conflicted
IRQ for PnP ISA card.
And do not use IRQ 9 for Non-PnP ISA cards.