[Gllug] PSU voltages

[Henrik Morsing]

> Watching for voltage changes isn't all that easy though, since the BIOS doesn't typically have a very high refresh rate on its display (typically only refreshing once per second). Using the i2c stuff in Linux and the sensors program you might get a better idea of what's going on.
>

It's been a year or two since I used i2c but back then the man page said
something about the bus only updated every 5 second or so. Can't remember
the exact refresh rate...

Henrik
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