Re: Lack of fan sensor output after Ubuntu upgrade

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On Mon, Sep 13, 2010 at 01:02:06PM -0400, Jean Delvare wrote:
> 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.
> 
After browsing through the datasheet, I don't think there is hope to ever
write a driver for this chip. I'll update sensors-detect to reflect this.

Guenter

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