Temperature and fans are broken on M1

[pixelcmtd]

----- CPU -----
Temperature: 0°C

----- Fans -----
Fan #0: 0

----- Battery -----
Battery Installed:  ✔
Is Charged:         ✔
Capacity:           102%
Cycle Count:        20 (2%)
Design Cycle Count: 1000
Current Charge:     4603 mAh
Maximum Charge:     5221 mAh
Design Capacity:    5103 mAh
Time Remaining:     00:12:41
Temperature:        25°C

MBP 13" Late 2020

[timleg002]

still broken. seems that some paid macos apps have figured it out, no answers for that yet though

[pixelcmtd]

The problem is that Apple silicon doesn't have SMC, as far as I think I get it, and documentation on how to get this information from other APIs is difficult to find.

[timleg002]

yujitach/MenuMeters@5604e76

This open source app has it implemented and this commit shows the M1 implementation.

[pixelcmtd]

So we'd basically need to implement this?

How the f- does IOHIDEventSystemClientCreate handle temperatures, not...mouses?

[timleg002]

Apparently it's IO and human interfacing so.. yeah? I also made a sample app in Swift which does this but removes a lot of ugly Objective-C stuff.

[pixelcmtd]

I'm also rn trying to hack up something with that API in C++, but my IOKit doesn't seem to implement the functions (wtf?)