Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1764768AbXHAOlN (ORCPT ); Wed, 1 Aug 2007 10:41:13 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756134AbXHAOk5 (ORCPT ); Wed, 1 Aug 2007 10:40:57 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:45836 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752456AbXHAOk4 (ORCPT ); Wed, 1 Aug 2007 10:40:56 -0400 Date: Wed, 1 Aug 2007 10:40:49 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: David Engraf cc: linux-kernel@vger.kernel.org, , , Subject: Re: [linux-usb-devel] [PATCH] USB BIOS early handoff only when the we the driver is configured In-Reply-To: <46B03078.5040305@netcom.eu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1167 Lines: 28 On Wed, 1 Aug 2007, David Engraf wrote: > At the moment I have a Jetway/VIA Mainboard which seems to have a problem > with the handoff. Even > when I wait about 20 seconds the EHCI_USBLEGSUP_BIOS flag is not cleared. > I think this is a BIOS > bug and I will have to talk to Jetway/VIA. I have the same problem on my Intel motherboard. Which is surprising, considering that Intel invented the BIOS-handoff technique. > On the other hand, I don't need the EHCI controller in my kernel, so I > think the kernel shouldn't take the > handover for the EHCI controller like other OS which do not have an usb > driver and so don't know that > there is a EHCI_USBLEGSUP_BIOS flag which should be cleared. There ought to be a solution to satisfy everybody. For instance, you could add a Kconfig flag for enabling USB handoff, and make it be selected automatically if any of the PCI USB drivers are configured. Alan Stern - 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/