On Fri, 08 Oct 2010, Martin Dengler wrote:
> If (\_SB.PCI0.LPC0.ECON)
> {
> Store (Local0, HLCL)
> }
> Else
> {
> \WBEC (0x0C, Local0)
> }
>
> but maybe the WBEC AML gives me a hint:
>
> SMI (0x00, 0x04, Arg0, Arg1, 0x00)
>
> ...but I don't know enough about AML to understand the significance of
> ".ECON" (and thus understand which branch of the LED method's "If" is
> likely to be more interesting) :(.
WBEC is a hack for ACPI interpretors that don't know about
EmbeddedController regions, I think. *Usually* it does the same as the
store to a embeddedcontroller region.
Check if HLCL is defined as 0x0C in a embeddedcontroller region. If it is,
then WBEC can be ignored, and ECON will always be true.
If it is not, well, we lose. You'd have to reverse-engineer the BIOS to
know what that SMI trap does...
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
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