On Tue, Sep 25, 2012 at 10:34:13AM +0300, Tero Keski-Valkama wrote:
> This patch is a patch to add support for Acer Aspire 5755G fan control
> to acerhdf module for the latest BIOS version available in the Acer
> web site, V1.20.
>
> <DSDT disassembly dump>
> ...
> Offset (0xA7),
> OSTT, 8,
> OSST, 8,
> THLT, 8,
> TCNL, 8,
> MODE, 1,
> , 2,
> INIT, 1,
> FAN1, 1,
> FAN2, 1,
> FANT, 1,
> SKNM, 1,
> SDTM, 8,
> FSSN, 4,
> FANU, 4,
> ...
> </DSDT disassembly dump>
>
> By experiment it was found that setting the register address 0xAB to
> 0x00 (FAN1 -> 0) caused the fan to stop, and setting it to the
> original value of 0x08 (FAN1 -> 1) caused the fan to operate
> automatically in BIOS control.
>
> By observation the value in the Embedded Controller table which
> correlated best with the temperature, and changes up and down along
> with real temperature was the register address 0xB4 (SKTC).
>
> This patch and related evidence and dumps were sent to the original
> authors of the module, peter and bp.
>
> The original author of the patch: Tero Keski-Valkama
No need for that - the Signed-off-by and patch authorship annotation in
git says that already.
>
> Signed-off-by: Tero Keski-Valkama <tero.keski-valk...@neter.fi>
But before we go with this any further: you mentioned some issues still
with acerhdf - you don't want to turn off your fan but to turn it to
full?
I think in this case, you want to simply not load the driver and use the
BIOS settings, no?
--
Regards/Gruss,
Boris.
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