On Thu, 2010-07-29 at 22:39 -0400, Jon Smirl wrote:
> On Thu, Jul 29, 2010 at 10:17 PM, Maxim Levitsky
> <maximlevit...@gmail.com> wrote:
> > note that error_adjustment module option is added.
> > This allows to reduce input samples by a percent.
> > This makes input on my system more correct.
> >
> > Default is 4% as it works best here.
> >
> > Note that only normal input is adjusted. I don't know
> > what adjustments to apply to fan tachometer input.
> > Maybe it is accurate already.
> 
> Do you have the manual for the ENE chip in English? or do you read Chinese?

The datasheet for a similar chip, the KB3700, is out there in English,
but it doesn't have CIR.

You might find these links mildly interesting:

http://www.coreboot.org/Embedded_controller
http://wiki.laptop.org/go/Embedded_controller
http://lists.laptop.org/pipermail/openec/2008-July/000108.html

Regards,
Andy

> Maybe you can figure out why the readings are off by 4%. I suspect
> that someone has set a clock divider wrong when programming the chip.
> For example setting the divider for a 25Mhz clock when the clock is
> actually 26Mhz would cause the error you are seeing. Or they just made
> a mistake in computing the divisor. It is probably a bug in the BIOS
> of your laptop.  If that's the case you could add a quirk in the
> system boot code to fix the register setting.
> 


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