On Tuesday 09 September 2008, Alan Stern wrote:
> What about case (c): The device uses legacy PM but the wakeup settings
> have already been handled by the ACPI AML code? There's no need to
> clear any extra wakeup-related stuff, but it still is necessary to tell
> the driver about the event.
Good question ... best if Intel answers it. :0
> (As a matter of fact, I have no idea whether or not Intel's legacy PM
> for UHCI is implemented in AML. It may vary from one BIOS to another.)
One data point: on the laptop used to type this message,
the GPE code block includes stuff like this for each UHCI:
Method (_L0C, 0, NotSerialized)
{
Notify (\_SB.PCI0.USB3, 0x02)
}
Without diving into the ICHx specs (which I believe DO have
such details, thanks be!), my first reaction is that this is
not a "case (c)". Of course, the rest of the AML code is,
as usual, cryptic (I'd rather have C code), and such stuff
might be hidden elsewhere in the event sequence.
- Dave
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