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From: Javier Càceres on 8 Sep 2009 17:15
Hi m

I reviewed that method but It does not perform any SMBus/ISA access.

Thanks,

"m" wrote:

> Look at GetSystemFirmwareTable in MSDN.
>
>
> "Javier Càceres" <JavierCceres(a)discussions.microsoft.com> wrote in message
> news:C1654A99-D47B-4357-A123-689C2AED50AD(a)microsoft.com...
> > Hi there,
> >
> >
> > This is a low level (native development) question. A motherboard can
> > contain
> > sensors to read many values (voltage, fan speed, etc).
> > I understand that many manufactures place this information at ISA-SM I/O
> > ports.
> > I have a Fintek F71882 "Super Hardware Monitor" datasheet which tells the
> > memory addresses where bit registers are located, but I don't know how to
> > access to such as memory blocks.
> >
> > Here a list of some hw monitor/sensor manufacturers:
> > http://www.almico.com/forumsensors.php
> > Here an explanation on ISA/SMBus funtionality:
> > http://www.lm-sensors.org/wiki/FAQ/Chapter1
> >
> > Thanks a lot, these topics lack of documentation.
> >
> > Javier Andres
> >
>
>
From: Pavel A. on 9 Sep 2009 09:21
In Windows before Vista/win2008, there is so called thermal zone concept.
A thermal zone contains number of temperature sensors and fans (defined in
ACPI BIOS),
and there is a system supplied driver to handle this.
Access to underlying interfaces (smbus, i/o ports or whatever) is wrapped in
another
layer of drivers - "ACPI operation region" handlers.
Unfortunately, the thermal zone and ACPI operation region documentation is
phased
out from the MSDN; some traces still remaining in WinXP embedded
documentation.

It is not clear how the new stuff [
http://msdn.microsoft.com/en-us/library/dd573949.aspx ]
replaces the above.

The almico.com SpeedFan software seems to access the smbus directly
(see http://www.almico.com/forumbuses.php ).

Sorry that this doesn't help you much, hope someone with the knowledge would
help you further.

--pa



"Javier C�ceres" <JavierCceres(a)discussions.microsoft.com> wrote in message
news:C1654A99-D47B-4357-A123-689C2AED50AD(a)microsoft.com...
> Hi there,
>
>
> This is a low level (native development) question. A motherboard can
> contain
> sensors to read many values (voltage, fan speed, etc).
> I understand that many manufactures place this information at ISA-SM I/O
> ports.
> I have a Fintek F71882 "Super Hardware Monitor" datasheet which tells the
> memory addresses where bit registers are located, but I don't know how to
> access to such as memory blocks.
>
> Here a list of some hw monitor/sensor manufacturers:
> http://www.almico.com/forumsensors.php
> Here an explanation on ISA/SMBus funtionality:
> http://www.lm-sensors.org/wiki/FAQ/Chapter1
>
> Thanks a lot, these topics lack of documentation.
>
> Javier Andres
>
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