From owner-freebsd-hackers@FreeBSD.ORG  Mon Sep 24 16:18:58 2012
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 3E7A3106566B
	for <freebsd-hackers@freebsd.org>; Mon, 24 Sep 2012 16:18:58 +0000 (UTC)
	(envelope-from hselasky@c2i.net)
Received: from swip.net (mailfe07.c2i.net [212.247.154.194])
	by mx1.freebsd.org (Postfix) with ESMTP id BC0268FC08
	for <freebsd-hackers@freebsd.org>; Mon, 24 Sep 2012 16:18:57 +0000 (UTC)
X-T2-Spam-Status: No, hits=-0.2 required=5.0 tests=ALL_TRUSTED,
	BAYES_50
Received: from [176.74.213.204] (account mc467741@c2i.net HELO
	laptop015.hselasky.homeunix.org)
	by mailfe07.swip.net (CommuniGate Pro SMTP 5.4.4)
	with ESMTPA id 322544000; Mon, 24 Sep 2012 18:18:48 +0200
From: Hans Petter Selasky <hselasky@c2i.net>
To: freebsd-hackers@freebsd.org,
 geoffrey levand <geoffrey.levand@mail.ru>
Date: Mon, 24 Sep 2012 18:20:07 +0200
User-Agent: KMail/1.13.7 (FreeBSD/9.1-PRERELEASE; KDE/4.8.4; amd64; ; )
References: <1348410653.373800982@f180.mail.ru>
In-Reply-To: <1348410653.373800982@f180.mail.ru>
X-Face: 'mmZ:T{)),Oru^0c+/}w'`gU1$ubmG?lp!=R4Wy\ELYo2)@'UZ24N@
	=?iso-8859-1?q?d2+AyewRX=7DmAm=3BYp=0A=09=7CU=5B?=@,
	_z/([?1bCfM{_"B<.J>mICJCHAzzGHI{y7{%JVz%R~yJHIji`y>
	=?iso-8859-1?q?Y=7Dk1C4TfysrsUI=0A=09-=25GU9V5=5DiUZF=26nRn9mJ=27=3F=26?=>O
MIME-Version: 1.0
Content-Type: Text/Plain;
  charset="iso-8859-15"
Content-Transfer-Encoding: 7bit
Message-Id: <201209241820.07558.hselasky@c2i.net>
Cc: 
Subject: Re: How to claim only some of USB interfaces of a composite USB
	device
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
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: Mon, 24 Sep 2012 16:18:58 -0000

On Sunday 23 September 2012 16:30:53 geoffrey levand wrote:
> Hi,
> 
> i have the following problem.
> I have a composite  USB device with multiple USB interfaces. Some of
> interfaces belong to the Bluetooth device and other to the WLAN device.
> The problem is i want my WLAN driver to claim only the interfaces which
> belong to the WLAN device. But ng_ubt kernel driver claims all interfaces
> for itself beginning with the interface 0. Therefore, my WLAN driver
> doesn't work if ng_ubt is loaded first.
> 
> The second question is, why FreeBSD USB stack calls the match callback of
> my WLAN driver only once with USB interface index 0. Shouldn't it call the
> match callback for each interface on a USB device ? Linux kernel e.g. does
> it per USB interface.
> 
> regards

Hi,

If the interfaces are parented to another interface, they are not probed.

Read the UBT specification at usb.org and provide a patch that will only grab 
bluetooth interfaces.

--HPS