From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932383AbWA0AsO (ORCPT ); Thu, 26 Jan 2006 19:48:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932365AbWA0AsN (ORCPT ); Thu, 26 Jan 2006 19:48:13 -0500 Received: from mail.kroah.org ([69.55.234.183]:1935 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S932383AbWA0AsN (ORCPT ); Thu, 26 Jan 2006 19:48:13 -0500 Date: Thu, 26 Jan 2006 16:47:46 -0800 From: Greg KH To: Oskar Senft Cc: Aleksey Gorelov , linux-kernel@vger.kernel.org Subject: Re: USB host pci-quirks Message-ID: <20060127004746.GA17030@kroah.com> References: <0EF82802ABAA22479BC1CE8E2F60E8C3AA3641@scl-exch2k3.phoenix.com> <43D94F62.2090707@sirrix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43D94F62.2090707@sirrix.de> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Jan 26, 2006 at 11:38:26PM +0100, Oskar Senft wrote: > Dear Aleksey, > > thank you for your e-mail! > > >>Is there a special need, that the "drivers/usb/host/pci-quirks.c" is > >>compiled into the kernel even if USB support is disabled? > > > > Yes, there is. USB handoff is necessary even if USB support is > > disabled completely in kernel. In fact, initially early usb handoff code > > was under pci, but since USB drivers do handoff anyway, it was decided > > to move everything into usb with a goal of merging them together. > > Just search for USB handoff in kernel archives. > > I see ... but as David Brownell already stated on Thu Sep 02 2004 - > 20:07:57 EST: > For backwards compatibility, the early reset should not be the > default. There aren't many systems where it's a problem. > > What happened to that argument? In the year and a half since then, we have changed our mind :) A major distro has shipped for a while with this always enabled with no problems, which has helped with this. thanks, greg k-h