Am Dienstag, 6. März 2007 16:50 schrieb Alan Stern:
> On Tue, 6 Mar 2007, Oliver Neukum wrote:
> Actually we have a single attribute, named "wakeup". If the descriptor
> says that remote wakeup isn't available then the attribute file is empty
> and is ro. If the descriptor says remote wakeup is available then the
> attribute file is rw and contains either "enabled" or "disabled".
>
> That's how things have worked for several kernel releases.
Oh, well. Is there a prize somewhere for overloading an attribute with
most functions? We'll have to support the existing interface.
> > > This makes me doubt that we should prevent the device from waking up when
> > > an internal I/O request occurs. If the user really wants to prevent the
> > > device from waking up, then he should prevent I/O requests. The means
> > > for
> > > doing this will depend on the individual device.
> >
> > Provided the user is capable of preventing that. I don't think we can
> > consider this self-evident.
>
> Perhaps. But think in terms of a power-management daemon. It should be
> smart enough to do the right thing, even if the user isn't.
But it should be able to run with minimum priviledges.
> All right, maybe it wouldn't if you did it for a short time -- but then
> what would be the point? Surely if you want to power down the network
> interface and leave it that way, you must realize that you can't keep
> live sessions bound to the interface.
Why? A full suspension of the system does that and we should seek
to be able to do the same.
Regards
Oliver
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