Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756141AbYABS7h (ORCPT ); Wed, 2 Jan 2008 13:59:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752726AbYABS73 (ORCPT ); Wed, 2 Jan 2008 13:59:29 -0500 Received: from wx-out-0506.google.com ([66.249.82.225]:49583 "EHLO wx-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752451AbYABS72 (ORCPT ); Wed, 2 Jan 2008 13:59:28 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=A/VHlG+xByBtVOOnHIBH3HYGgxURdiBlXj1JwQN96vCd4KucvpIX+Cy4UpyW6vnDqeAhwLELsyo4YpugASUP6FRTHTRAXyb6aPonXkaonaJmh8ni1vAsLgI9E6Dhr+/UhzQKkpXTua14LlDoDIxQO7OtFrSSBJzKOhKUqp5IKyE= Message-ID: <8bd0f97a0801021058g15d32de7nd29102ec552ba5fa@mail.gmail.com> Date: Wed, 2 Jan 2008 13:58:56 -0500 From: "Mike Frysinger" To: "David Brownell" Subject: Re: [linux-usb-devel] [PATCH] : Allow embedded developers USB options normally reserved for OTG Cc: linux-usb-devel@lists.sourceforge.net, "Robin Getz" , gregkh@suse.de, linux-kernel@vger.kernel.org In-Reply-To: <200801021047.16036.david-b@pacbell.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <200801020948.51310.rgetz@blackfin.uclinux.org> <200801021047.16036.david-b@pacbell.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1011 Lines: 21 On Jan 2, 2008 1:47 PM, David Brownell wrote: > On Wednesday 02 January 2008, Robin Getz wrote: > > From: Robin Getz > > > > Allow embedded developers to turn support for USB Hubs off even if they have a > > full root hub. This saves the overhead (RAM and Flash size). > > ISTR that it won't save very much code though ... the Linux USB > stack structures all its enumeration logic around hubs. perhaps the code size is arguable as to whether it really matters. the reason we want it is that we have a USB host controller that will not work with USB hubs, so we want to make sure the system does not attempt such things. (yes, such a USB host controller is retarded, but the decision was out of our hands.) -mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/