From: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>
To: Doug Ledford <dledford@xsintricity.com>
Cc: James Bottomley <James.Bottomley@SteelEye.com>,
linux-hotplug-devel@lists.sourceforge.net,
linux-scsi@vger.kernel.org, Matthew Wilcox <matthew@wil.cx>,
Patrick Mansfield <patmans@us.ibm.com>,
Stefan Richter <stefanr@s5r6.in-berlin.de>,
"Alexander E. Patrakov" <patrakov@ums.usu.ru>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: [SPAM] Re: Asynchronous scsi scanning, version 9
Date: Mon, 26 Jun 2006 21:04:03 +0000 [thread overview]
Message-ID: <20060626210403.GA31085@one-eyed-alien.net> (raw)
In-Reply-To: <1151348151.4936.8.camel@fc5.xsintricity.com>
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On Mon, Jun 26, 2006 at 02:55:50PM -0400, Doug Ledford wrote:
> On Mon, 2006-06-26 at 07:44 -0700, Matthew Dharm wrote:
>
> > As for using one Scsi_Host... there are several usb-storage devices which
> > attach to an entire SCSI bus (not just a single target), so can't make each
> > device it's own target.
>
> This makes no sense to me at all. The USB devices attach to a USB bus,
> the whole notion of a SCSI bus for USB devices is as nothing more than
> an abstraction, and should be able to be arbitrarily changed in the USB
> stack any time you wish. In short, you aren't doing SCSI selections
> over a USB bus, so why should SCSI target IDs vs. host IDs matter?
> Aren't they just all mapped in the driver to the USB device anyway?
I guess my point is that there are some devices for which the concept of a
'bus' is -not- an abstraction. These devices have a USB connector at one
end and a SCSI HD-68 connector on the other, and can be attached to 15
devices in a SCSI chain.
Perhaps I misunderstand your objection?
Matt
--
Matthew Dharm Home: mdharm-usb@one-eyed-alien.net
Maintainer, Linux USB Mass Storage Driver
E: You run this ship with Windows?! YOU IDIOT!
L: Give me a break, it came bundled with the computer!
-- ESR and Lan Solaris
User Friendly, 12/8/1998
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next prev parent reply other threads:[~2006-06-26 21:04 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20060511143352.GI12272@parisc-linux.org>
[not found] ` <20060518172258.GL1604@parisc-linux.org>
[not found] ` <20060529031915.GB23405@parisc-linux.org>
[not found] ` <447AB2F5.2000700@s5r6.in-berlin.de>
[not found] ` <20060529130515.GE23405@parisc-linux.org>
2006-05-31 23:21 ` Asynchronous scsi scanning, version 9 Patrick Mansfield
2006-06-01 12:22 ` Kay Sievers
2006-10-26 19:53 ` maximilian attems
2006-06-01 13:14 ` Alexander E. Patrakov
2006-06-01 13:21 ` maximilian attems
2006-06-01 13:23 ` Matthew Wilcox
2006-06-01 13:26 ` Alexander E. Patrakov
2006-06-01 14:00 ` Arjan van de Ven
2006-06-25 21:15 ` James Bottomley
2006-06-25 22:46 ` Matthew Wilcox
2006-06-26 8:24 ` Arjan van de Ven
2006-06-26 12:40 ` Matthew Wilcox
2006-06-26 12:59 ` Arjan van de Ven
2006-06-26 16:03 ` Greg KH
2006-06-26 14:44 ` Matthew Dharm
2006-06-26 15:18 ` Matthew Wilcox
2006-06-26 15:44 ` James Bottomley
2006-06-26 16:02 ` Greg KH
2006-06-26 21:08 ` Matthew Dharm
2006-06-26 22:15 ` Matthew Wilcox
2006-06-26 18:55 ` [SPAM] " Doug Ledford
2006-06-26 21:04 ` Matthew Dharm [this message]
2006-06-26 21:20 ` Doug Ledford
2006-06-26 20:58 ` Linas Vepstas
2006-06-26 21:14 ` James Bottomley
2006-06-26 21:21 ` Linas Vepstas
2006-06-26 21:41 ` James Bottomley
2006-06-28 7:52 ` Hannes Reinecke
2006-06-28 16:03 ` James Bottomley
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