Re: [asus-nb-wmi] thermal device detected by asus-nb-wmi platform driver

[Guenter Roeck]

On 03/20/2014 05:22 PM, Lu, Baolu wrote:
> Hi,
>
> I booted Ubuntu13.10 onto ASUS T100 Tablet and upgraded it with upstream
> kernel (3.14.0-rc7+). There is a thermal device under
> /sys/devices/platform/asus-nb-wmi.
>
> root@t100:~/linux# tree /sys/class/hwmon/
> /sys/class/hwmon/
> âââ hwmon0 -> ../../devices/platform/coretemp.0/hwmon/hwmon0
> âââ hwmon1 -> ../../devices/platform/asus-nb-wmi/hwmon/hwmon1
>
> root@t100:/sys/devices/platform/asus-nb-wmi# ls
> cpufv driver hwmon input modalias power subsystem uevent
>
> root@t100:~/linux# sensors
> coretemp-isa-0000
> Adapter: ISA adapter
> Core 0: +38.0ÂC (high = +90.0ÂC, crit = +90.0ÂC)
> Core 1: +38.0ÂC (high = +90.0ÂC, crit = +90.0ÂC)
> Core 2: +39.0ÂC (high = +90.0ÂC, crit = +90.0ÂC)
> Core 3: +38.0ÂC (high = +90.0ÂC, crit = +90.0ÂC)
>
> asus-isa-0000
> Adapter: ISA adapter
> temp1: +6280.0ÂC

Pretty hot ;-). Not your problem, though - it looks like the temperature
is reported in Kelvin and the code converting from Kelvin to degrees C
turns out to be buggy.

> I didn't get any information about thermal interface in
> "Documentation/ABI/testing/sysfs-platform-asus-wmi". Is this a thermal
> sensor? If it's the fact, how can I change the environment so that this
> sensor gives me variable data?

I don't think I understand your question. Yes, this is a thermal sensor.
What is it you want to do (in addition to having it report reasonable
temperatures) ?

Guenter

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/