Re: Fwd: Re: wait_for_sysfs needs an update to handle the device properly

[Csan <csani@lme.linux.hu>]

Idézés Kay Sievers <kay.sievers@vrfy.org>:

> On Sat, Oct 30, 2004 at 09:00:37AM -0700, Greg KH wrote:
> > On Sat, Oct 30, 2004 at 05:23:41AM +0200, Kay Sievers wrote:
> > > On Fri, Oct 29, 2004 at 03:37:28AM +0200, Csan wrote:
> > > > Id??z??s Kay Sievers <kay.sievers@vrfy.org>:
> > > > > On Fri, Oct 29, 2004 at 01:41:32AM +0200, Csan wrote:
> > > > 
> > > > 
> > > > > Could you please
> > > > > > > post the output of:
> > > > > > > 
> > > > > > >   ls -l /sys/bus/usb/devices
> > > > > > 
> > > > > > # ls -l /sys/bus/usb/devices
> > > > > > -r--r--r--  1 root root 0 2004-10-29 01:10 /sys/bus/usb/devices
> > > 
> > > Greg, any idea how it can happen, that the usb subsys does not create
> any
> > > /sys/bus/usb/* entry at all?
> > 
> > Ick, no, I don't know how that could happen :(
> 
> So let's see if we come closer. :)
> 
> Hi Csan,
Hi,

> what kernel is that?

That was the stock Debian kernel 2.6.8-1-686

> Did you apply any patches to it?

No patches.

> Any chance to try
> a different version?

Yes. The reason I've waited a few days before I reply to this has been that
2.6.9 hit the unstable repository and now I am running 2.6.9... and no
improvement around here:

# ls -l /sys/bus/usb/devices
-r--r--r--  1 root root 0 2004-11-06 07:05 /sys/bus/usb/devices

> Which distribution?

Debian, Debian, Debian... what else? - Check my sig ;)

> Does reloading the driver:
>   rmmod ehci_hcd uhci_hcd
>   modprobe uhci_hcd
> 
> create anything in /sys/bus/usb/devices/*?

Still nothing:

# ls -l /sys/bus/usb/devices
-r--r--r--  1 root root 0 2004-11-06 08:17 /sys/bus/usb/devices

Strangely enough, on a few other machines that I run 2.6, the subdir is properly
present:


# ls -l /sys/bus/usb/devices/
lrwxrwxrwx    1 root     root           53 2004-09-27 20:26 1-0:1.0 ->
../../../devices/pci0000:00/0000:00:01.2/usb1/1-0:1.0
lrwxrwxrwx    1 root     root           45 2004-09-27 20:26 usb1 ->
../../../devices/pci0000:00/0000:00:01.2/usb1
# uname -r
2.6.2-1-586tsc

# ls -l /sys/bus/usb/devices/
lrwxrwxrwx  1 root root 0 Nov  2 06:07 1-0:1.0 ->
../../../devices/pci0000:00/0000:00:07.2/usb1/1-0:1.0
lrwxrwxrwx  1 root root 0 Nov  2 06:07 2-0:1.0 ->
../../../devices/pci0000:00/0000:00:07.3/usb2/2-0:1.0
lrwxrwxrwx  1 root root 0 Nov  2 06:07 usb1 ->
../../../devices/pci0000:00/0000:00:07.2/usb1
lrwxrwxrwx  1 root root 0 Nov  2 06:07 usb2 ->
../../../devices/pci0000:00/0000:00:07.3/usb2
# uname -r
2.6.8-1-686-smp

So the problem might seem to be of local origin, but then what would that be?
I'm gonna try some older kernels (2.6.7) on this laptop... brb.

...and no, no change:

# ls -l /sys/bus/usb/devices 
-r--r--r--  1 root root 0 2004-11-06 08:48 /sys/bus/usb/devices
# uname -r
2.6.7-1-686


Regards,
Csan  alias  János Holányi
Debian Group leader - Association of Hungarian Linux Users
URL: http://www.lme.hu/  Email: csani AT lme.linux.hu
gpg --keyserver hkp://pgp.mit.edu --recv-keys 82CBB661



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