From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg KH <greg@kroah.com>
Date: Thu, 19 Feb 2009 04:07:58 +0000
Subject: Re: FAQ Somewhere?  USB error messges
Message-Id: <20090219040758.GA24219@kroah.com>
List-Id: <linux-hotplug.vger.kernel.org>
References: <499CCE54.2020704@seiner.com>
In-Reply-To: <499CCE54.2020704@seiner.com>
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To: linux-hotplug@vger.kernel.org

On Wed, Feb 18, 2009 at 07:13:24PM -0800, Yan Seiner wrote:
> I have a device that has fallen off my usb hub.  It now refuses to connect 
> with:
>
> Feb 18 18:57:21 selene kernel: [217569.165436] usb 2-4.4.4.4.4.3: new low 
> speed USB device using ehci_hcd and address 55
> Feb 18 18:57:22 selene kernel: [217569.572035] usb 2-4.4.4.4.4.3: device 
> not accepting address 55, error -71
> Feb 18 18:57:22 selene kernel: [217569.572366] hub 2-4.4.4.4.4:1.0: unable 
> to enumerate USB device on port 3
>
> I'm fairly sure it's not the device as I have two identical ones that work 
> fine in other hubs.  I'm fairly sure it's not the hub as I have other 
> devices that work fine on that hub.
>
> So now I need to figure out what that error message means.  Where can I 
> look up the error code?

Documentation/usb/error-codes.txt