Messages in this thread | | | Date | Tue, 25 Mar 2008 10:33:22 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [linux-pm] [RFC][PATCH] PM: Introduce new top level suspend and hibernation callbacks (rev. 2) |
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On Tue, 25 Mar 2008, Oliver Neukum wrote:
> Am Dienstag, 25. März 2008 15:19:45 schrieb Alan Stern:
> > It's not safe for the PM core to do such things unilaterally. The > > decision to unregister a device should be made by the driver or the > > subsystem. > > Why? You can trigger it from user space via sysfs
How can you do that?
> and in many cases > suspending to disk will disconnect all devices on a bus,
But these disconnects aren't done by the PM core; they are done by individual drivers or subsystems.
> so I'd say a > failure to resume is just a limited subcase of a device vanishing during > sleep.
I'll go along with that. If a device vanishes during sleep, the PM core isn't responsible for unregistering it -- the device's subsystem is.
Alan Stern
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