From: Matthew Dharm <mdharm-kernel@one-eyed-alien.net>
To: Andries.Brouwer@cwi.nl
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
torvalds@transmeta.com
Subject: Re: [patch] scsi: ten -> use_10_for_rw / use_10_for_ms
Date: Sun, 8 Jun 2003 14:28:21 -0700 [thread overview]
Message-ID: <20030608142821.F25191@one-eyed-alien.net> (raw)
In-Reply-To: <UTC200305230722.h4N7Mid25812.aeb@smtp.cwi.nl>; from Andries.Brouwer@cwi.nl on Fri, May 23, 2003 at 09:22:44AM +0200
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On Fri, May 23, 2003 at 09:22:44AM +0200, Andries.Brouwer@cwi.nl wrote:
> In the old days, ancient scsi devices understood 6-byte commands
> and more recent ones also understood 10-byte commands.
> Thus, we had a "ten" flag indicating that 10-byte commands worked.
>
> These days, especially for usb-storage devices, the opposite
> sometimes holds - 10-byte commands are supported, but 6-byte commands
> are not.
>
> The patch below changes the field ten into the pair of fields
> use_10_for_rw, use_10_for_ms set initially when the driver
> thinks these are supported. Ifthe device returns ILLEGAL_REQUEST
> they are cleared.
>
> This patch obsoletes a large amount of code in usb-storage,
> and not only that, once the subsequent patch removes all this
> usb-storage code many devices will work that hang today.
Any idea when you'll submit that patch to usb-storage?
Do you perhaps just want to send what you have to me for integration?
Matt
--
Matthew Dharm Home: mdharm-usb@one-eyed-alien.net
Maintainer, Linux USB Mass Storage Driver
Sir, for the hundreth time, we do NOT carry 600-round boxes of belt-fed
suction darts!
-- Salesperson to Greg
User Friendly, 12/30/1997
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prev parent reply other threads:[~2003-06-08 21:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-23 7:22 Andries.Brouwer
2003-06-08 21:28 ` Matthew Dharm [this message]
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