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SubjectRe: [PATCH, RFC] [1/3] Generic in-kernel AC status
On Pá 10-02-06 09:06:43, Stefan Seyfried wrote:
> On Wed, Feb 08, 2006 at 12:57:53PM +0000, Matthew Garrett wrote:
> > The included patch adds support for power management methods to register
> > callbacks in order to allow drivers to check if the system is on AC or
> > not. Following patches add support to ACPI and APM. Feedback welcome.
> Ok. Maybe i am not seeing the point. But why do we need this in the kernel?
> Can't we handles this easily in userspace?

Some kernel parts need to now: for example powernow-k8: some
frequencies are not allowed when you are running off battery. [Just
now it is solved by not allowing those frequencies at all unless ACPI
is available; quite an ugly solution.]

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