coretemp(4) - NetBSD Manual Pages

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CORETEMP(4)             NetBSD Kernel Interfaces Manual            CORETEMP(4)


NAME

     coretemp -- Intel Core on-die digital thermal sensor


SYNOPSIS

     coretemp* at cpu?


DESCRIPTION

     The coretemp driver provides support for the on-die digital thermal sen-
     sor present on Intel Core and newer CPUs.

     The temperatures can be observed by using the envsys(4) API or the
     envstat(8) command.  Temperatures are reported for each core separately.


EVENTS

     The coretemp driver is able to send a critical event to the powerd(8)
     daemon.  The script /etc/powerd/scripts/sensor_temperature will be exe-
     cuted by the daemon (if running) when the limit has been reached.


SEE ALSO

     envsys(4), envstat(8), powerd(8)

     Michael Berktold and Tian Tian (Intel Corporation), CPU Monitoring With
     DTS/PECI, White Paper, http://edc.intel.com/Download.aspx?id=2612,
     September 2010.


HISTORY

     The coretemp driver first appeared in FreeBSD 7.0.  It was later ported
     to NetBSD 5.0.


AUTHORS

     The coretemp driver was written by Rui Paulo <rpaulo@FreeBSD.org> as part
     of a Google Summer of Code project.  It was adapted to NetBSD by Juan
     Romero Pardines.

NetBSD 6.0                     February 23, 2010                    NetBSD 6.0