From: Dave Hansen <haveblue@us.ibm.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: getting udev to work with USB combo drive
Date: Thu, 12 Feb 2004 18:04:17 +0000 [thread overview]
Message-ID: <1076609057.2982.1.camel@nighthawk> (raw)
In-Reply-To: <1076210508.1262.1332.camel@nighthawk>
On Thu, 2004-02-12 at 09:45, Greg KH wrote:
> On Wed, Feb 11, 2004 at 09:45:41PM -0800, Dave Hansen wrote:
> > Also, I think I'm getting some garbage in the SYSFS_serial variable.
> > When I get down to the match_rule() area for SYSFS_serial="...", I get
> > some output in the debug log like this:
> > compare_sysfs_attribute: compare attribute 'serial' value '0A4110002CEA'
> > with 'HXOLL0012202323480'
> >
> > But, I have no idea where HXOLL0012202323480 came from.
> >
> > 'grep -r HXOLL0012202323480 /sys' comes up with nothing.
> >
> > Any ideas? Is that some memory garbage from somewhere?
>
> What type of device is this that exports a serial number in sysfs? A
> USB device? If so, remember, USB serial numbers can change on you
> (nasty isn't it) as they are read from the device when asked for.
> Perhaps this is what is happening.
udevinfo still reports the serial as being 0A4110002CEA. Isn't that the
important part?
> Try enabling CONFIG_USB_DEBUG in your kernel and look at your kernel
> log when the device is inserted. It will tell you what the serial
> number is for the device at that point in time. See if that matches up
> with what udev is reading from sysfs.
>
> That data looks too text like to be random garbage (but I could be
> wrong.)
I'll give that a shot.
--dave
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prev parent reply other threads:[~2004-02-12 18:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-08 3:22 getting udev to work with USB combo drive Dave Hansen
2004-02-12 1:38 ` Greg KH
2004-02-12 5:45 ` Dave Hansen
2004-02-12 17:45 ` Greg KH
2004-02-12 18:04 ` Dave Hansen [this message]
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