Re: Identifying i2c devices on Asus P8P67 sandybridge motherboard

[Phillip Susi <psusi-3tLf1voIkJTQT0dZR+AlfA@public.gmane.org>]

On 1/26/2011 3:22 AM, Jean Delvare wrote:
> It would show up as:
> 
> /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:03/ATK0110:00
> /sys/bus/acpi/devices/ATK0110:00

That's what I thought.  Don't have it.

> BTW, what kind of hardware monitoring and/or fan control features does
> your BIOS offer?

Asus calls it Q-fan.  It does seem to automatically throttle the fan
speed in response to temperature.  It has two 4 pin PWM headers and two
3 pin headers on the board, and the bios config has options to enable
fan speed control on either of the 4 pin headers.

> This is strange. Can you please send me a dump of these SPD EEPROMs?

Will get it to you when I get back home tonight.

> Back to your hardware monitoring issue, Asus tends to use the
> integrated sensors in the Super-I/O on desktop boards. So odds are that
> you have a very recent Super-I/O chip sensors-detect doesn't know. From
> pictures found on the web, it seems to be a Nuvoton NCT6776F, for which
> we indeed have no support yet.

I began to suspect as much.  Do you know if anyone is working on a
driver for it, or if the data sheet is available so I could take a crack
at it?

Then again, I wonder if it might be better to come up with an SSDT I can
dynamically load to define the ACPI FAN and TZ objects and let the
regular acpi driver manage it.