December 21, 2007 CORETEMP 4

### NAME

coretemp - Intel Core on-die digital thermal sensor

### SYNOPSIS

options INTEL_CORETEMP

### DESCRIPTION

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

The coretemp driver reports each core's temperature through the envsys(4) API. The driver has only 1 temperature sensor:

Sensor | Units | Typical Use
```sensor0` | `uK` | `cpuN temperature`

### EVENTS

The coretemp driver is able to send a critical event to the ```/etc/powerd/scripts/sensor_temperature` powerd(8) script (if running) when the temperature has reached a critical state.

### SEE ALSO

envstat(4), powerd(8)

### HISTORY

The coretemp driver first appeared in FreeBSD7.0. And then was ported to NetBSD5.0.

### 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.