Am Mittwoch, 22. September 2004 17:15 schrieb Alan Stern:
> This leaves some unanswered questions. �On some buses (such as PCI or
> USB), it's not possible to access a device whenever its state is higher
> than 0. �So how can a driver increase the state, once it is positive? �
> Conceivably this could cause a system-wide state-3 suspend to fail if some
> device were already say in state 1.
Worse, it applies to any device higher up in the tree.
The transition rule that you can enter a state >0 only from 0
and only 0 from a state >0 is IMHO needed.
Regards
Oliver
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