Messages in this thread | | | Date | Mon, 16 Nov 2009 21:05:45 +0000 | From | Matthew Garrett <> | Subject | Re: [RFC][PATCH 1/10] PM: Add flag for devices capable of generating run-time wake-up events |
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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@srcf.ucam.org
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