.\"	$NetBSD: smsc.4,v 1.5 2009/05/13 12:42:02 wiz Exp $
.\"
.\" Copyright (c) 2007 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Brett Lymn.
.\"
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.Dd April 3, 2008
.Dt SMSC 4
.Os
.Sh NAME
.Nm smsc
.Nd Standard Microsystems Corporation LPC47B397 Super I/O
.Sh SYNOPSIS
.Cd "smsc0 at isa? port 0x2e"
.Sh DESCRIPTION
The
.Nm smsc
driver provides support for the hardware monitoring portion of the
.Tn Standard Microsystems Corporation
LPC47B397, SCH5307-NS, and SCH5317 Super I/O chips to be used with
the
.Xr envsys 4
API.
.Pp
The chip supports 8 sensor inputs:
.Bl -column "Sensor" "Units" "Typical" -offset indent
.It Sy "Sensor" Ta Sy "Units" Ta Sy "Typical Use"
.It Li "Temp0" Ta "uK" Ta "CPU 1 Temperature"
.It Li "Temp1" Ta "uK" Ta "CPU 2 Temperature"
.It Li "Temp2" Ta "uK" Ta "Ambient Temperature"
.It Li "Temp3" Ta "uK" Ta "unused"
.It Li "Fan0" Ta "RPM" Ta "CPU 1 Fan"
.It Li "Fan1" Ta "RPM" Ta "unused"
.It Li "Fan2" Ta "RPM" Ta "unused"
.It Li "Fan3" Ta "RPM" Ta "CPU 2 Fan"
.El
.Sh HARDWARE
Motherboards with the chip supported by the
.Nm
driver include:
.Pp
.Bl -item -offset indent
.It
.Tn Tyan Thunder K8WE (S2895)
.El
.Sh SEE ALSO
.Xr envsys 4 ,
.Xr envstat 8
.Sh HISTORY
The
.Nm
device appeared in
.Nx 5.0 .