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CORETEMP(4)	      DragonFly Kernel Interfaces Manual	   CORETEMP(4)


coretemp -- device driver for Intel Core on-die digital thermal sensor


To compile this driver into the kernel, place the following line in your kernel configuration file: device coretemp Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5): coretemp_load="YES"


The coretemp driver provides support for the on-die digital thermal sen- sors, both core level and package level, for Intel Core and newer CPUs. The values are exposed through the HW_SENSORS sysctl(3) tree. For exam- ple: % sysctl hw.sensors hw.sensors.cpu0.temp0: 50.00 degC (node0 core0 temp), OK hw.sensors.cpu1.temp0: 50.00 degC (node0 core0 temp), OK hw.sensors.cpu2.temp0: 47.00 degC (node0 core1 temp), OK hw.sensors.cpu3.temp0: 47.00 degC (node0 core1 temp), OK hw.sensors.cpu_node0.temp0: 50.00 degC (node0 temp), OK If the core or package temperature reaches critical level, a notify event will be sent using devctl(4).


systat(1), sysctl(3), devctl(4), devd(8), sensorsd(8), sysctl(8)


The coretemp driver first appeared in FreeBSD 7.0.


The coretemp driver was written by Rui Paulo <rpaulo@FreeBSD.org> as part of a Google Summer of Code project. This manual page was written by Dag-Erling Smorgrav <des@FreeBSD.org>. DragonFly 4.9 May 24, 2015 DragonFly 4.9

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