Am Donnerstag 27 September 2007 schrieb Alan Stern:
> On Thu, 27 Sep 2007, Oliver Neukum wrote:
>
> > Am Dienstag 25 September 2007 schrieb Alan Stern:
> > > Getting all this to work will be tricky, because sd is a block device
> > > driven by requests issued through the block layer in atomic context,
> > > whereas suspend and resume require a process context. Probably the
> > > SCSI core would have to get involved in managing the synchronization.
> >
> >
> > Well,
> >
> > here's a patch that seems to do what needs to be done to make it work.
>
> Oliver, I'm surprised at you! This patch is a big hack, not to mention
> a layering violation and an inversion of the proper calling sequence.
Well,
1. autosuspend should not be specific to USB
2. I like to view the generic SCSI code as a library
3. The low level drivers will have to decide whether to suspend devices,
as the generic code doesn't know whether the bus is shared.
Regards
Oliver
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