Re: [RFC] Implementation of SCSI dynamic power management

Alan Stern
2008-01-07T21:34:52Z

On Mon, 7 Jan 2008, Oliver Neukum wrote:

> Am Montag, 7. Januar 2008 20:42:23 schrieb Alan Stern:
> > When all the devices under a host are suspended, the LLD is informed
> > (via a new "autosuspend" method in the host template) so that it can
>
> That is most certainly a mistake.

Why?

> Is there a good reason to not modify
> to extend suspend() to take an extra argument for the reason it is called?

In fact suspend methods already do take an argument specifying the
reason they were called. It wouldn't be hard to add a couple of extra
PM_EVENT_* values for manual suspend and autosuspend. The problem is
that resume methods don't take a corresponding argument.

Alan Stern