From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Dharm Subject: Re: usb storage traces Date: Thu, 4 Dec 2003 13:27:49 -0800 Sender: linux-scsi-owner@vger.kernel.org Message-ID: <20031204212749.GA4998@one-eyed-alien.net> References: <20031204184428.GA17116@one-eyed-alien.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="VS++wcV0S1rZb1Fb" Return-path: Received: from multivac.one-eyed-alien.net ([64.169.228.101]:17792 "EHLO multivac.one-eyed-alien.net") by vger.kernel.org with ESMTP id S263591AbTLDV2J (ORCPT ); Thu, 4 Dec 2003 16:28:09 -0500 Content-Disposition: inline In-Reply-To: List-Id: linux-scsi@vger.kernel.org To: Alan Stern Cc: Pat LaVarre , Alex Sanks , Julian Back , David Brownell , SCSI development list --VS++wcV0S1rZb1Fb Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Dec 04, 2003 at 03:59:58PM -0500, Alan Stern wrote: > On Thu, 4 Dec 2003, Matthew Dharm wrote: >=20 > > Did the device advertise 'generic scsi' or one of the other protocol co= des? > >=20 > > Microsoft has published information that indicates that they 'translate' > > the mode-sense commands into the 10-byte variants for everything bug > > 'transparent scsi' -- I think actually seeing that information would be > > necessary in constructing a new algorithm for Linux. >=20 > It was generic (transparent) scsi. >=20 > Perhaps I'll try implementing some of the other protocol codes in FSG, > maybe also the "removeable media" flag. This would also require > implementing the PREVENT-ALLOW-MEDIUM-REMOVAL, READ-FORMAT-CAPACITIES, and > START-STOP, possibly also REZERO-UNIT, SEEK, READ(12), and WRITE(12). >=20 > (1). Am I missing anything important? Based on the information I've seen, any one of the other protocol codes will be fine -- you don't need to do all, just transparent SCSI and one other. Of course, all codes would be good for testing. > (2). Can I afford to leave out some of those? The last four don't look= =20 > very useful. I agree about the last four. I can't think of anything else that might be good to test. Matt --=20 Matthew Dharm Home: mdharm-usb@one-eyed-alien.= net=20 Maintainer, Linux USB Mass Storage Driver G: Money isn't everything, A.J. AJ: Who convinced you of that? G: The Chief, at my last salary review. -- Mike and Greg User Friendly, 11/3/1998 --VS++wcV0S1rZb1Fb Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE/z6bVIjReC7bSPZARAjTiAJ4+zWtrY2NPeldWhYsKQfZiew7iUgCgvO7T GksHUhc+7VMzb7Be7fx0Vfw= =6rwT -----END PGP SIGNATURE----- --VS++wcV0S1rZb1Fb--