.\"	$NetBSD: ipmi.4,v 1.7 2009/05/04 19:16:41 wiz Exp $
.\"
.\" Copyright (c) 2006 Manuel Bouyer.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
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.\"    documentation and/or other materials provided with the distribution.
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.\"    must display the following acknowledgement:
.\"	This product includes software developed by Manuel Bouyer.
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.Dd September 8, 2008
.Dt IPMI 4
.Os
.Sh NAME
.Nm ipmi
.Nd Intelligent Platform Management Interface driver
.Sh SYNOPSIS
.Cd "ipmi0 at mainbus?"
.Sh DESCRIPTION
The
.Nm
device driver supports motherboards implementing the
Intelligent Platform Management Interface version 1.5 or 2.0,
and exports sensors and the watchdog through the
.Xr envsys 4
interface.
.Sh EVENTS
The
.Nm
driver is able to send events to
.Xr powerd 8
when a sensor's state has changed.
Intrusion sensors will send a
.Em critical
event when state is not ok.
Power Supply sensors will send a
.Em critical
event when the Power Supply unit is not installed and
.Em warning-over
when the Power Supply unit is installed but not powered on.
Fan, temperature and voltage sensors will send
.Em critical-over
or
.Em critical-under
when the value is very critical, or
.Em warning-over
or
.Em warning-under
if it's in a warning alert.
.Sh SEE ALSO
.Xr envsys 4 ,
.Xr envstat 8 ,
.Xr powerd 8 ,
.Xr wdogctl 8
.Sh HISTORY
The
.Nm
driver first appeared in
.Ox 3.9
and was then ported to
.Nx 4.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was originally written by
.An Jordan Hargrave
and was ported to
.Nx
by
.An Manuel Bouyer
.Aq bouyer@NetBSD.org .