Am Montag 24 September 2007 schrieb Alan Stern:
> On Mon, 24 Sep 2007, Oliver Neukum wrote:
>
> > > subsystem implements its own form of runtime PM support, then you'll be
> > > able to use it properly. But until then, there isn't anything much you
> > > can do.
> >
> > Well, we can't simply cut power. Buffers must be flushed and the disk
> > spun down. The suspend() method of the storage driver will have to become
> > complex.
>
> That's right, if the device is a real disk. If it's a flash memory
> device then of course these issues don't arise. Unfortunately the
With respect to buffers how sure are you about that?
> driver isn't able to tell one from the other; the user will have to
> do that for us.
Code for what we need is in sd_suspend(). The only trouble is locking.
We need to make sure no commands that dirty buffers are issued after
flushing the buffers.
Regards
Oliver
-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
