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.\" Copyright 2019 Joyent, Inc.
.\" Copyright 2021 Oxide Computer Company
.\"
.Dd January 21, 2021
.Dt PCHTEMP 4D
.Os
.Sh NAME
.Nm pchtemp
.Nd Intel platform controller hub temperature sensor driver
.Sh SYNOPSIS
.Pa /dev/sensors/temperature/pch/*
.Sh DESCRIPTION
The
.Nm
driver provides the system the ability to read the digital temperature
sensor found on several Intel platform controller hub (PCH) chipsets.
The following chipsets are supported which cover most Intel Core family
(non-Atom) CPUs starting with the Haswell generation:
.Bl -dash
.It
Intel 8 Series / C220 Series Chipset Platform Controller Hub
.It
Intel 9 Series Chipset Family Platform Controller Hub
.It
Intel Mobile 5th Generation Processor Family (Broadwell-U)
.It
Intel C610 Series Chipset and X99 Chipset Platform Controller Hub
.It
Intel 100 Series Chipset Family Platform Controller Hub
.It
Intel C620 Series Chipset Platform Controller Hub
.It
Intel 200 and Z370 Series Chipset Families Platform Controller Hub
.It
Intel 7th/8th Generation Processor Family U/Y Platforms
.It
Intel 300 Series and Intel C240 Series Chipset Family Platform
Controller Hub
.It
Intel 400 Series Chipset Family On-Package Platform Controller Hub
.It
Intel 400 Series Chipset Family Platform Controller Hub
.El
.Pp
Temperature information is available to the system via the fault
management architecture
.Pq FMA .
The file system location and programming interface to the
.Nm
driver are considered
.Sy Volatile ,
subject to change without notice, and should not be used directly.
Raw temperature information can be dumped through the FMA developer
utility
.Sy fmtopo .
.Sh SEE ALSO
.Xr fmadm 8
.Rs
.%A Intel Corporation
.%B Intel 300 Series and Intel C240 Series Chipset Family Platform Controller Hub
.%D March 2019
.%O Document Number 337347-005
.%V 1
.%U https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/300-series-chipset-pch-datasheet-vol-1.pdf
.Re