From owner-freebsd-hackers@FreeBSD.ORG  Thu Jul  1 14:53:33 2004
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 74ED416A4CE
	for <freebsd-hackers@freebsd.org>;
	Thu,  1 Jul 2004 14:53:33 +0000 (GMT)
Received: from harmony.village.org (rover.village.org [168.103.84.182])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 0847943D39
	for <freebsd-hackers@freebsd.org>;
	Thu,  1 Jul 2004 14:53:33 +0000 (GMT)	(envelope-from imp@bsdimp.com)
Received: from localhost (warner@rover2.village.org [10.0.0.1])
	by harmony.village.org (8.12.11/8.12.11) with ESMTP id i61EnXUA097789;
	Thu, 1 Jul 2004 08:49:33 -0600 (MDT)
	(envelope-from imp@bsdimp.com)
Date: Thu, 01 Jul 2004 08:50:04 -0600 (MDT)
Message-Id: <20040701.085004.69987799.imp@bsdimp.com>
To: lesha@intercaf.ru
From: "M. Warner Losh" <imp@bsdimp.com>
In-Reply-To: <200406301904.44292.lesha@intercaf.ru>
References: <200406301904.44292.lesha@intercaf.ru>
X-Mailer: Mew version 3.3 on Emacs 21.3 / Mule 5.0 (SAKAKI)
Mime-Version: 1.0
Content-Type: Text/Plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
cc: freebsd-hackers@freebsd.org
Subject: Re: USB driver selection algorithm?
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 01 Jul 2004 14:53:33 -0000

In message: <200406301904.44292.lesha@intercaf.ru>
            Alex K <lesha@intercaf.ru> writes:
: 
: Hello, everyone!
: 
: As far as I understand drivers for USB devices are selected and attached
: based on USB VendorID and ProductID match. Here I have situation where
: I have 2 diffrent USB devices (cables) which got same Vendor and Device
: IDs, only revision differes.
: 
: It is mobile phone cables based on PL2303 and PL2303X chipsets.
: 
: What approach will you recommend?

Do they need different drivers?  You can also use the revision if you want.

Warner