[lm-sensors] Lack of fan sensor output after Ubuntu upgrade

Jean Delvare khali at linux-fr.org
Mon Sep 13 19:02:06 CEST 2010


On Mon, 13 Sep 2010 09:13:49 -0700, Guenter Roeck wrote:
> It looks like data is passed between 8031 and host using LDA 11h and/or 12h
> (power management).  However, if those LDAs are active, it does not mean that
> ADCs or fan control is active. The datasheet does not specify details of ADC
> and fan control communication between host and 8031; that seems to be microcode
> specific. Also, it looks like the 8031 code is system specific and not provided
> by the chip vendor. So it might not even be possible to obtain ADC and fan control
> status.
> 
> Or, of course, I might simply be missing something.
> 
> For sensors-detect, we could possibly tag ADC and fan control support to 
> LDA 11h and/or 12h. Would that make sense ?

If there's hope to ever write a driver for this, yes it makes sense. If
not, we're probably better off just claiming that the device has no
monitoring features.

-- 
Jean Delvare



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