On Tuesday, 31 July 2007 06:59, Len Brown wrote:
> On Sunday 29 July 2007 17:27, Rafael J. Wysocki wrote:
> > Still, there are many other files in which CONFIG_PM can be replaced
> > with CONFIG_PM_SLEEP or even with CONFIG_SUSPEND, but they can be updated in
> > the future.
>
> There is #ifdef CONFIG_PM
> around all the .suspend and .resume methods.
>
> Technically they are PM_DEVICE_STATES or something,
> that could really be under PM, and both SUSPEND and HIBERNATE
> would depend on PM_DEVICE_STATES, but it is also possible to have
> PM_DEVICE_STATES without SUSPEND and HIBERNATE.
Well, the people on linux-pm seem to agree that the .suspend() and .resume()
callbacks are not suitable for runtime power management, so having them
built without SUSPEND or HIBERNATION wouldn't be very useful. ;-)
Greetings,
Rafael
--
"Premature optimization is the root of all evil." - Donald Knuth
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