Re: [lm-sensors] NCT6793D

[Guenter Roeck <linux@roeck-us.net>]

Hi,

On 08/26/2015 05:57 PM, Grazvydas Ignotas wrote:
> Hi,
>
> I have NCT6793D [1] on a MSI "Z170A PC MATE (MS-7971)" board. There
> doesn't seem to be any driver that would work out of the box, and
> nct6775 seems to be the closest one. Curiously this chip is not listed
> on the manufacturer's website.
>
> Loading the nct6775 driver with debug results in:
> [  125.155290] nct6775: unsupported chip ID: 0xd121
>
> Patching that check to treat this chip as nct6792 produces seemingly
> working driver. There are various voltages reported (don't know what
> they correspond to), cooler connected to CPUFAN1 appears as "fan2" and
> gives correct looking RPM, "PECI Agent 0" reading is close to
> coretemp, but all other temperature outputs don't seem to be working
> (just showing static values). I was able to successfully control the
> CPU fan using pwm sysfs knobs.
>
> All in all it seems to be useful on this chip, probably worth enabling
> in mainline. Feel free to CC me when/if there are any patches to test.
>
> [1] http://notaz.gp2x.de/img/mess/hw/NCT6793D.jpg
>

We'll need a little more information. It may well be that the chip is
all the same as the NCT6792D, but who knows.

I'll try to get a datasheet. We'll see how it goes.

Thanks,
Guenter



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