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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
commit253e67c8b3a72b3a4757fdbc5845297628db0a4a (patch)
treeadf53b66087aa30dfbf8bf391a1dadb044c3bf4d /static/netbsd/man4/coretemp.4
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+.\" $NetBSD: coretemp.4,v 1.5 2020/11/14 20:04:46 wiz Exp $
+.\"-
+.\" Copyright (c) 2007 Juan Romero Pardines.
+.\" Copyright (c) 2007 Dag-Erling Coïdan Smørgrav
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD: src/share/man/man4/coretemp.4,v 1.4 2007/10/15 20:00:19 netchild Exp $
+.\"
+.Dd February 23, 2010
+.Dt CORETEMP 4 x86
+.Os
+.Sh NAME
+.Nm coretemp
+.Nd Intel Core on-die digital thermal sensor
+.Sh SYNOPSIS
+.Cd "coretemp* at cpu?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the on-die digital thermal sensor present
+on Intel Core and newer CPUs.
+.Pp
+The temperatures can be observed by using the
+.Xr envsys 4
+.Tn API
+or the
+.Xr envstat 8
+command.
+Temperatures are reported for each core separately.
+.Sh EVENTS
+The
+.Nm
+driver is able to send a
+.Em critical
+event to the
+.Xr powerd 8
+daemon.
+The script
+.Pa /etc/powerd/scripts/sensor_temperature
+will be executed by the daemon (if running) when the limit has been reached.
+.Sh SEE ALSO
+.Xr envsys 4 ,
+.Xr envstat 8 ,
+.Xr powerd 8
+.Rs
+.%A Michael Berktold
+.%A Tian Tian (Intel Corporation)
+.%T CPU Monitoring With DTS/PECI, White Paper
+.%D September 2010
+.%U http://edc.intel.com/Download.aspx?id=2612
+.Re
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Fx 7.0 .
+It was later ported to
+.Nx 5.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Rui Paulo Aq Mt rpaulo@FreeBSD.org
+as part of a Google Summer of Code project.
+It was adapted to
+.Nx
+by
+.An Juan Romero Pardines .