On Sun Apr 13, 2025 at 10:23 PM BST, Eben King wrote:
sudo modprobe it87 force_id=0x8728
then running "sensors" shows
it8728-isa-0a40
Adapter: ISA adapter
<9 voltages>
<5 fans, one of which is 0 RPM>
<3 temps>
intrusion0: ALARM
It's been put into /etc/modules.
That might be the way forward. In my case, the controller is managed by
the driver "nct6775". I have (the not-very-discoverable) sysfs location
/sys/devices/platform/nct6775.656/hwmon/hwmon2 containing files to
control things; e.g. writing 1 to ./pwmN_enable (N ∈ 1-7) sets fan
"manual control mode", after which I can write the values 0-255 to
./pwmN to control the RPM. (I haven't got my fans to do quite what I
want, yet, but that's not the driver's fault.)
nct6775 is documented reasonably well
<https://www.kernel.org/doc/html/latest/hwmon/nct6775.html>, your
controller's docs aren't quite so clear but there's some mention of
writing to pwnN_enable: <https://docs.kernel.org/hwmon/it87.html>
Hope this helps,
--
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👱🏻 Jonathan Dowland
✎ j...@debian.org
🔗 https://jmtd.net
