linux-kernel - Re: [RFC]Is usb port number fixed?

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Message-ID: <20120424021600.GA5283@udknight>
Date:	Tue, 24 Apr 2012 10:16:00 +0800
From:	Wang YanQing <udknight@...il.com>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Anil Nair <anilcoll90@...il.com>, Greg KH <greg@...ah.com>,
	lkml <linux-kernel@...r.kernel.org>, linux-usb@...r.kernel.org
Subject: Re: [RFC]Is usb port number fixed?

On Mon, Apr 23, 2012 at 11:13:06AM -0400, Alan Stern wrote:
> The port numbers are determined by the hardware -- each set of wires
> has its own port number.  The numbers have nothing to do with
> bandwidth.
Could you figure out the codes in kernel that read out the port number from
hub, if there is a piece of codes do that things?

Thanks very much.
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