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Message-ID: <Pine.LNX.4.44L0.0808131145160.2151-100000@iolanthe.rowland.org>
Date: Wed, 13 Aug 2008 11:46:34 -0400 (EDT)
From: Alan Stern <stern@...land.harvard.edu>
To: Oliver Neukum <oneukum@...e.de>
cc: Pavel Machek <pavel@...e.cz>,
kernel list <linux-kernel@...r.kernel.org>,
Linux-pm mailing list <linux-pm@...ts.osdl.org>,
<James.Bottomley@...senpartnership.com>, <teheo@...ell.com>
Subject: Re: Power management for SCSI
On Wed, 13 Aug 2008, Oliver Neukum wrote:
> Am Mittwoch 13 August 2008 16:59:23 schrieb Alan Stern:
> > This is a good question. Most USB mass-storage devices do not act as a
> > true SCSI bus, but I believe there are a few non-standard ones that do
> > -- the USB device really contains a SCSI host and arbitrary SCSI
>
> OK, but does it make sense to have SCSI autosuspend? Or should autosuspend
> operate on the bus the _host_ is connected to (usb, pci, ...)?
That's the situation we're in now. Autosuspend operates on the USB
bus, but it can't do anything with usb-storage because the child SCSI
devices don't do a SCSI autosuspend.
Alan Stern
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