Add manual page for the LM81, LM87, and compatible iic hardware monitors
(lmenv).
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.\" $NetBSD: lmenv.4,v 1.1 2013/10/15 19:14:41 jdc Exp $
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.\"
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.\" This code is derived from software contributed to The NetBSD Foundation
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.\" by Julian Coleman.
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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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.\" 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 October 14, 2013
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.Dt LMENV 4
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.Os
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.Sh NAME
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.Nm lmenv
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.Nd National Semiconductor LM81, LM87, and compatible hardware monitors
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.Sh SYNOPSIS
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.Cd "lmenv0 at iic0 addr 0x2c: ADM9240 rev 2"
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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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LM87,
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.Tn National Semiconductor
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LM81,
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.Tn Analog Devices
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ADM9240, and
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.Tn Dallas Semiconductor
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DS1780 iicbus hardware monitors.
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Sensor values are reported through the
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.Xr envstat 8
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interface.
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.Pp
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The
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.Nm
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supports the following voltage, temperature, and fan speed sensors:
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.Bl -column "+5Vin/Vcc" "Temperature" -offset indent
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.It Sy "Sensor" Ta "Type"
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.It Li "+2.5Vin" Ta "Volts DC"
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.It Li "Vccp1" Ta "Volts DC"
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.It Li "+Vcc" Ta "Volts DC"
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.It Li "+5Vin/Vcc" Ta "Volts DC"
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.It Li "+12Vin" Ta "Volts DC"
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.It Li "Vccp2" Ta "Volts DC"
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.It Li "External" Ta "Temperature"
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.It Li "Internal" Ta "Temperature"
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.It Li "FAN1" Ta "Speed"
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.It Li "FAN2" Ta "Speed"
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.El
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On the LM87 monitor, AIN1 and AIN2 Volts DC sensors may replace either,
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or both of the FAN1 and FAN2 speed sensors, respectively.
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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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driver first appeared in
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.Ox 3.9 .
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.Nx
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support was added in
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.Nx 7.0 .
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.Sh AUTHORS
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The
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.Nm
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driver was written for
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.Ox
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by
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.An Mark Kettenis
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.Aq kettenis@openbsd.org ,
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and ported to
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.Nx
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by
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.An Julian Coleman
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.Aq jdc@NetBSD.org .
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.Sh BUGS
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High and low sensor limits are not supported.
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.Pp
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Interrupt support is not implemented.
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