[Bug 221071] NCT6779D - implement support for sensor readings

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221071

            Bug ID: 221071
           Summary: NCT6779D - implement support for sensor readings
           Product: Base System
           Version: 11.1-RELEASE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: nbe at renzel.net

Created attachment 184805
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=184805&action=edit
My dirty LUA script to parse output of "superiotool -de"

Hi,

there's no support for the sensor readings of the Nuvoton NCT6679D

Here's a link to the datasheet:

    http://v-comp.kiev.ua/download/NCT6779D.pdf

I think bank 4, registers 80h - 95h are the interesting ones. The userspace
program "superiotool" is able to read the register values, but I don't know how
to interpret them correctly.

I've created a dirty LUA script to parse the output of "superiotool -de" as
attachment to this report. Judging by that my CPU is only at 52°C during being
fully loaded (Ryzen 1700 stock). That cannot be.

Maybe a userspace sensor reader would work as well as a kernel module, no idea.
NetBSD also has a driver for reading the values - I've attached that file as
well.

Would be nice to monitor these sensors in FreeBSD, too. Can anyone jump in?



Thanks in advance,
Nils

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