From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270153AbTGPFzY (ORCPT ); Wed, 16 Jul 2003 01:55:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270151AbTGPFzX (ORCPT ); Wed, 16 Jul 2003 01:55:23 -0400 Received: from mail.kroah.org ([65.200.24.183]:42465 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S270158AbTGPFzS (ORCPT ); Wed, 16 Jul 2003 01:55:18 -0400 Date: Tue, 15 Jul 2003 23:10:09 -0700 From: Greg KH To: CaT Cc: linux-kernel@vger.kernel.org Subject: Re: 2.6.0-t1: i2c+sensors still whacky (hi Greg :) Message-ID: <20030716061009.GA5037@kroah.com> References: <20030715090726.GJ363@zip.com.au> <20030715161127.GA2925@kroah.com> <20030716060443.GA784@zip.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030716060443.GA784@zip.com.au> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 16, 2003 at 04:04:43PM +1000, CaT wrote: > On Tue, Jul 15, 2003 at 09:11:27AM -0700, Greg KH wrote: > > On Tue, Jul 15, 2003 at 07:07:27PM +1000, CaT wrote: > > So, if you don't have any i2c code loaded, everything works? How about > > Yes. > > > just loading the i2c driver and not the sensor driver? > > All's fine. > > > Oh, how about enabiling debugging in the i2c driver that you are using? > > Well this is what I did: > > 11 [15:53:38] root@theirongiant:/usr/src/linux/drivers/i2c>> grep 'define DEBUG' . -r > ./i2c-core.c:#define DEBUG 1 /* needed to pick up the dev_dbg() calls */ > ./scx200_acb.c:#define DEBUG 0 > ./i2c-sensor.c:#define DEBUG 1 > ./i2c-algo-bit.c:/* #define DEBUG 1 */ > ./i2c-dev.c:#define DEBUG 1 > ./i2c-algo-pcf.c:/* #define DEBUG 1 */ /* to pick up dev_dbg calls */ > ./busses/i2c-amd756.c:/* #define DEBUG 1 */ > ./busses/i2c-ali15x3.c:/* #define DEBUG 1 */ > ./busses/i2c-i801.c:/* #define DEBUG 1 */ > ./busses/i2c-piix4.c:#define DEBUG 1 > ./busses/i2c-sis96x.c:/* #define DEBUG */ > ./busses/i2c-ali1535.c:/* #define DEBUG 1 */ > ./chips/adm1021.c:#define DEBUG 1 > ./chips/lm75.c:/* #define DEBUG 1 */ > > Did I do the right thing? Looks good, but are you _really_ building all of those drivers into your kernel? Make them modules, that way booting will not require a small nap :) Then load only the i2c bus driver that you have. See if that causes the system to slow down, or cause any kernel log messages? Only then try loading a i2c client driver, for your hardware. Exactly what i2c hardware do you have anyway? thanks, greg k-h