Monitoring temperature with acpi (sysctls)

[Spartak Radchenko]

John Baldwin ?????:
> If ACPI doesn't include the sysctl's that's due to your BIOS, not FreeBSD.
> You can verify by doing an acpidump and seeing if you have any thermal
> zones listed in your ASL.
What if there is a thermal zone, but sysctl returns meaningless numbers?

router# sysctl hw.acpi.thermal
hw.acpi.thermal.min_runtime: 0
hw.acpi.thermal.polling_rate: 10
hw.acpi.thermal.tz0.temperature: -257.-1C
hw.acpi.thermal.tz0.active: -1
hw.acpi.thermal.tz0.passive_cooling: 1
hw.acpi.thermal.tz0.thermal_flags: 0
hw.acpi.thermal.tz0._PSV: 50.0C
hw.acpi.thermal.tz0._HOT: -1
hw.acpi.thermal.tz0._CRT: 60.0C
hw.acpi.thermal.tz0._ACx: 50.0C -1 -1 -1 -1 -1 -1 -1 -1 -1

If I understand it correctly, the current temperature is -257C, or 16 
degrees from absolute zero.
Motherboard is Via MS8000.

--
Spartak Radchenko SVR1-RIPE