LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Jean Delvare <khali@linux-fr.org>
To: Stephen Hemminger <shemminger@osdl.org>
Cc: Greg KH <greg@kroah.com>,
	i2c@lm-sensors.org, linux-kernel@vger.kernel.org
Subject: Re: [i2c] Why to I2c drivers not autoload like other PCI devices?
Date: Thu, 4 Jan 2007 17:54:12 +0100	[thread overview]
Message-ID: <20070104175412.76ebce25.khali@linux-fr.org> (raw)
In-Reply-To: <20070104055128.GA8115@kroah.com>

On Wed, 3 Jan 2007 21:51:28 -0800, Greg KH wrote:
> On Wed, Jan 03, 2007 at 05:29:16PM -0800, Stephen Hemminger wrote:
> > On Wed, 3 Jan 2007 16:56:00 -0800
> > Greg KH <greg@kroah.com> 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?

Greg really means:
	modprobe --show-depends `cat /sys/bus/pci/devices/0000:00:1f.3/modalias`
and same for the other commands below.

> 
> Is it different from:
> 	modprobe --config /dev/null --show-depends `cat /sys/bus/pci/0000:00:1f.3/modalias`
> ?
> 
> > author:         Frodo Looijaard <frodol@dds.nl>, Philip Edelbrock <phil@netroedge.com>, and Mark D. Studebaker <mdsxyz123@yahoo.com>
> > 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
> 
> _______________________________________________
> i2c mailing list
> i2c@lm-sensors.org
> http://lists.lm-sensors.org/mailman/listinfo/i2c


-- 
Jean Delvare

  reply	other threads:[~2007-01-04 16:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-04  0:50 Stephen Hemminger
2007-01-04  0:56 ` Greg KH
2007-01-04  1:29   ` Stephen Hemminger
2007-01-04  5:51     ` Greg KH
2007-01-04 16:54       ` Jean Delvare [this message]
2007-01-04 17:54         ` [i2c] " Stephen Hemminger
2007-01-04 19:32           ` Greg KH
2007-01-04 20:47             ` Jean Delvare

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20070104175412.76ebce25.khali@linux-fr.org \
    --to=khali@linux-fr.org \
    --cc=greg@kroah.com \
    --cc=i2c@lm-sensors.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=shemminger@osdl.org \
    --subject='Re: [i2c] Why to I2c drivers not autoload like other PCI devices?' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).