Re: [RFC][PATCH 1/10] PM: Add flag for devices capable ofgenerating run-time wake-up events

[Matthew Garrett]

On Mon, Nov 16, 2009 at 04:00:49PM -0500, Alan Stern wrote:
> On Mon, 16 Nov 2009, Rafael J. Wysocki wrote:
> > Yes, in general.  The platform.
> 
> And for non-platform devices (hot-pluggable, for example)?  Presumably 
> you would want the driver that detects and registers the device to set 
> this flag.

Are there any cases where the bus code won't know this?

> > > What if the kernel can't tell whether or not the device can generate 
> > > runtime wake-up events?
> > 
> > Do you have any specific examples in mind?
> 
> What about Matthew's example of an ACPI GPE which might or might not 
> cause a runtime wake-up event, depending on the AML code in the BIOS?

The platform knows whether or not that's the case.

-- 
Matthew Garrett | mjg59@xxxxxxxxxxxxx
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