118 lines
3.7 KiB
Groff
118 lines
3.7 KiB
Groff
.\" $NetBSD: lm.4,v 1.15 2004/11/11 10:58:29 xtraeme Exp $
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.\"
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.\" Copyright (c) 2000 The NetBSD Foundation, Inc.
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.\" All rights reserved.
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Bill Squier.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the NetBSD
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.\" Foundation, Inc. and its contributors.
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.\" 4. Neither the name of The NetBSD Foundation nor the names of its
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.\" contributors may be used to endorse or promote products derived
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.\" from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd November 11, 2004
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.Dt LM 4
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.Os
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.Sh NAME
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.Nm lm
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.Nd National Semiconductor LM78, LM79 and compatible hardware monitors
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.Sh SYNOPSIS
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.Cd "lm0 at isa? port 0x290"
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.\" .Cd "lm0 at pnpbios0 index ?"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the
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.Tn National Semiconductor
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LM series hardware monitors and register compatible chips to be used with
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the
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.Xr envsys 4
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API.
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.Pp
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Most supported devices possess 11 sensors:
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.Bl -column "Sensor" "Units" "Typical" -offset indent
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.It Sy "Sensor" Ta Sy "Units" Ta Sy "Typical Use"
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.It Li "IN0" Ta "uV DC" Ta "Core voltage"
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.It Li "IN1" Ta "uV DC" Ta "unknown"
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.It Li "IN2" Ta "uV DC" Ta "+3.3V"
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.It Li "IN3" Ta "uV DC" Ta "+5V"
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.It Li "IN4" Ta "uV DC" Ta "+12V"
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.It Li "IN5" Ta "uV DC" Ta "-12V"
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.It Li "IN6" Ta "uV DC" Ta "-5V"
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.It Li "Temp" Ta "uK" Ta "Motherboard Temperature"
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.It Li "Fan0" Ta "RPM" Ta "Fan"
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.It Li "Fan1" Ta "RPM" Ta "Chassis Fan"
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.It Li "Fan2" Ta "RPM" Ta "Fan"
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.El
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for some devices (most Winbond devices) sensor names and numbers will be
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different.
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.Pp
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Sensor names as well as nominal RPMs for fans 0 and 1 may be changed
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through the
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.Dv ENVSYS_STREINFO
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.Xr ioctl 2 .
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.Pp
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Due to hardware limitations, fresh sensor data is only available every
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1.5 seconds.
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.Sh HARDWARE
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Chips supported by the
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.Nm
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driver include:
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.Pp
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.Bl -item -offset indent
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.It
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.Tn National Semiconductor
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.Em LM78
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and
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.Em LM78-J
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.It
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.Tn National Semiconductor
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.Em LM79
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.It
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.Tn Winbond
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.Em W83697HF ,
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.Em W83627HF ,
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.Em W83781D ,
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and
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.Em W83782D
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.It
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.Tn iTE
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.Em IT8705f
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.El
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.Sh SEE ALSO
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.Xr envsys 4 ,
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.Xr envstat 8
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.Sh HISTORY
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The
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.Nm
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device appeared in
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.Nx 1.5 .
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.Sh BUGS
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Interrupt support is unimplemented.
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.Pp
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There are currently no known pnpbios IDs assigned to LM chips.
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