Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932286AbXADFwI (ORCPT ); Thu, 4 Jan 2007 00:52:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932278AbXADFwI (ORCPT ); Thu, 4 Jan 2007 00:52:08 -0500 Received: from cantor2.suse.de ([195.135.220.15]:57921 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932286AbXADFwH (ORCPT ); Thu, 4 Jan 2007 00:52:07 -0500 Date: Wed, 3 Jan 2007 21:51:28 -0800 From: Greg KH To: Stephen Hemminger Cc: i2c@lm-sensors.org, linux-kernel@vger.kernel.org Subject: Re: Why to I2c drivers not autoload like other PCI devices? Message-ID: <20070104055128.GA8115@kroah.com> References: <20070103165020.4b277ebc@freekitty> <20070104005600.GA25712@kroah.com> <20070103172916.7f9ca11a@freekitty> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070103172916.7f9ca11a@freekitty> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2706 Lines: 69 On Wed, Jan 03, 2007 at 05:29:16PM -0800, Stephen Hemminger wrote: > On Wed, 3 Jan 2007 16:56:00 -0800 > Greg KH wrote: > > > On Wed, Jan 03, 2007 at 04:50:20PM -0800, Stephen Hemminger wrote: > > > Is there some missing magic (udev rule?) that keeps i2c device modules > > > from loading? For example: the Intel i2c-i801 module ought to get loaded > > > automatically on boot up since it has a set of PCI id's that generate > > > the necessary module aliases. It would be better if I2C device's autoloaded > > > like other PCI devices. > > > > No, it should autoload, if it has a MODULE_DEVICE_TABLE() in it. In > > fact, the i2c-i801 autoloads on one of my machines just fine. Are you > > sure your pci ids match properly? > > > > thanks, > > > > greg k-h > > This laptop is running Ubuntu Edgy (6.10) and it doesn't autoload. > Everything works fine if I manually load the module with modprobe. > > This device should match: > > 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02) > 00: 86 80 da 27 01 00 80 02 02 00 05 0c 00 00 00 00 > 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 > 20: a1 18 00 00 00 00 00 00 00 00 00 00 cf 10 88 13 > 30: 00 00 00 00 00 00 00 00 00 00 00 00 0b 02 00 00 > > This driver modinfo: > > filename: /lib/modules/2.6.20-rc3/kernel/drivers/i2c/busses/i2c-i801.ko What does: modprobe --show-depends `cat /sys/bus/pci/0000:00:1f.3/modalias` show? Is it different from: modprobe --config /dev/null --show-depends `cat /sys/bus/pci/0000:00:1f.3/modalias` ? > author: Frodo Looijaard , Philip Edelbrock , and Mark D. Studebaker > description: I801 SMBus driver > license: GPL > vermagic: 2.6.20-rc3 mod_unload PENTIUMM 4KSTACKS > depends: i2c-core > alias: pci:v00008086d00002413sv*sd*bc*sc*i* > alias: pci:v00008086d00002423sv*sd*bc*sc*i* > alias: pci:v00008086d00002443sv*sd*bc*sc*i* > alias: pci:v00008086d00002483sv*sd*bc*sc*i* > alias: pci:v00008086d000024C3sv*sd*bc*sc*i* > alias: pci:v00008086d000024D3sv*sd*bc*sc*i* > alias: pci:v00008086d000025A4sv*sd*bc*sc*i* > alias: pci:v00008086d0000266Asv*sd*bc*sc*i* > alias: pci:v00008086d000027DAsv*sd*bc*sc*i* <------- should match Yeah, I would think so. What does: cat /sys/bus/pci/0000:00:1f.3/modalias show? thanks, greg k-h - 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/