Re: [lm-sensors] Tachometer speed returned rather than absolute fan speed?

From: George Spelvin
Date: Mon Mar 10 2014 - 03:18:30 EST


> What did you think "tachometer speed" was, if not the fan speed? Does
> the max6650 driver not return correct fan speeds for you?

Given that most PC fans produce two pulses per rotation, I assumed it was
the frequency of the tachometer signal, which is twice the fan RPM.
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