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From: "Paul Rolland" <rol@witbe.net>
To: "'Sergey Vlasov'" <vsu@altlinux.ru>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: [2.4.31] - USB device numbering in /proc/bus/usb
Date: Tue, 23 Aug 2005 17:51:37 +0200	[thread overview]
Message-ID: <200508231551.j7NFpFD00513@tag.witbe.net> (raw)
In-Reply-To: <20050823194548.6441d995.vsu@altlinux.ru>

Hello Sergey,

> Yes.  Addresses for USB devices are assigned dynamically.  If you
> disconnect the modem from USB and connect it again, its address will
> change.

The problem I've is that nothing changed on the machine except that 
I did a reboot. Nothing (USB device) added, nothing removed, so with
a stable hardware config, USB numbering should have stayed stable, IMHO.
 
> > I would have been expecting some more stability in the 
> numbering across
> > reboot, the same way IDE disks numbers are stable.
> 
> Use some other identifier which is stable - e.g., serial number of the
> USB device (unfortunately, many devices don't have it).

Well yes, I'm going to try to convert to some other identifiers space
as this seems to be the only way to go.

Thanks for the confirmation,
Regards,
Paul
 


  reply	other threads:[~2005-08-23 15:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-08-23 13:14 [2.4.31] - USB device numbering in /proc/bus/usb Paul Rolland
2005-08-23 15:45 ` Sergey Vlasov
2005-08-23 15:51   ` Paul Rolland [this message]
2005-08-23 16:31     ` Alistair John Strachan

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