Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757939AbYHGDaQ (ORCPT ); Wed, 6 Aug 2008 23:30:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753229AbYHGDaA (ORCPT ); Wed, 6 Aug 2008 23:30:00 -0400 Received: from smtp123.sbc.mail.sp1.yahoo.com ([69.147.64.96]:28430 "HELO smtp123.sbc.mail.sp1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1753037AbYHGD37 (ORCPT ); Wed, 6 Aug 2008 23:29:59 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=pacbell.net; h=Received:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id; b=A92GyyhH8NVJpyWKH2L55/+W7LtWVgT2AV6oz8d5zuT2MGscANsnSwsUgvMMYowp9iYet5V9k0/O9aj0VRCP7Bq7vyccryqz6v4QS8MWMs0W1biE0AYSFCCpNLdCoMYrRJ7nnAKZ+glY0TY71E3I00cj92EGwmdIjpG2QLmw2SU= ; X-YMail-OSG: q.L9eIwVM1mZWf9yoCEBNzvMepFxnnlPb3n34.Nrl7f2V.vB70L_ojBBWwXLlLRAglzK589WUExQdEXOIG0oavGngKSEKQcXOvssk3dPZebCZU_GutNXU_XECNjchyhrHTNDzk24ILcHhd.2UbqykQ-- X-Yahoo-Newman-Property: ymail-3 From: David Brownell To: Alan Stern , Simon Arlott Subject: Re: [PATCH RFC] USB: Add HCD fastboot Date: Wed, 6 Aug 2008 20:29:56 -0700 User-Agent: KMail/1.9.9 Cc: Rene Herman , Arjan van de Ven , linux-kernel@vger.kernel.org, mingo@elte.hu, Daniel Walker , USB list , Greg Kroah-Hartman References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Content-Disposition: inline Message-Id: <200808062029.56844.david-b@pacbell.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 865 Lines: 21 > > Lack of a keyboard makes it impossible to do anything if the module fails to > > load... as I understand it when the HCD init runs, any BIOS emulation stops? > > That's right. ?The host driver kicks the BIOS off the hardware. That's done much earlier ... as part of PCI quirk handling. See drivers/usb/host/pci-quirks.c ... it's not been part of the HCDs for about three years now. I don't recall the details right now, but letting the BIOS hang on to that hardware was causing a lot of wierd problems that went away when we made that change. If a module fails to load, fix the bug in that module. :) - Dave -- 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/