.\"	$OpenBSD: it.4,v 1.2 2003/05/21 09:40:17 jmc Exp $
.\"
.\" Copyright (c) 2003 Julien Bordet <zejames@greygats.org>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.Dd May 16, 2003
.Dt IT 4
.Os
.Sh NAME
.Nm it
.Nd ITE IT8705F, IT8712F and SiS SiS950 hardware monitors
.Sh SYNOPSIS
.Cd "it0 at isa? port 0x290"
.Sh DESCRIPTION
The
.Nm
driver provides support for the
.Tn IT8705F , IT8712F
and
.Tn SiS950
hardware monitors to be used with the
.Xr sysctl 3
interface.
.Pp
Most supported devices possess 15 sensors:
.Bl -column "Sensor" "Units" "Typical" -offset indent
.It Sy "Sensor" Ta Sy "Units" Ta Sy "Typical Use"
.It Li "Fan0" Ta "RPM" Ta "CPU Fan"
.It Li "Fan1" Ta "RPM" Ta "Fan"
.It Li "Fan2" Ta "RPM" Ta "Fan"
.It Li "IN0" Ta "uV DC" Ta "Core voltage"
.It Li "IN1" Ta "uV DC" Ta "Core voltage"
.It Li "IN2" Ta "uV DC" Ta "+3.3V"
.It Li "IN3" Ta "uV DC" Ta "+5V"
.It Li "IN4" Ta "uV DC" Ta "+12V"
.It Li "IN5" Ta "uV DC" Ta "Unknown"
.It Li "IN6" Ta "uV DC" Ta "-12V"
.It Li "IN7" Ta "uV DC" Ta "-5V"
.It Li "IN8" Ta "uV DC" Ta "VBAT"
.It Li "Temp" Ta "uK" Ta "Motherboard Temperature"
.It Li "Temp" Ta "uK" Ta "Motherboard Temperature"
.It Li "Temp" Ta "uK" Ta "CPU Temperature"
.El
.Pp
For some devices, sensors' names and numbers will be different.
.Pp
Due to hardware limitations, fresh sensor data is only available every
1.5 seconds.
.Sh SEE ALSO
.Xr sysctl 8
.Sh HISTORY
The
.Nm
driver first appeared in
.Ox 3.4 .
.Sh AUTHORS
The
.Nm
driver was written by
.An Julien Bordet Aq zejames@greyhats.org .
.Sh BUGS
Interrupt support is unimplemented.