linux-kernel - Re: [PATCH mm] sysfs: add /sys/dev/usb to handle CONFIG_USB_DEVICE

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Message-ID: <20080418030055.GA3429@kroah.com>
Date:	Thu, 17 Apr 2008 20:00:55 -0700
From:	Greg KH <greg@...ah.com>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Kay Sievers <kay.sievers@...y.org>, linux-usb@...r.kernel.org
Subject: Re: [PATCH mm] sysfs: add /sys/dev/usb to handle
	CONFIG_USB_DEVICE_CLASS=y

On Thu, Apr 17, 2008 at 07:11:03PM -0700, Dan Williams wrote:
> The deprecated config option CONFIG_USB_DEVICE_CLASS causes class devices
> with duplicate major:minor numbers to be registered.  In effect they
> represent a usb specific address space for major:minor numbers so add 'usb'
> as a directory along side 'block' and 'char'.
> 
> Cc: Kay Sievers <kay.sievers@...y.org>
> Signed-off-by: Dan Williams <dan.j.williams@...el.com>
> ---
> This boots up without warning on my dev system.  We end up with the
> following situation:

This patch is not going to work if usbcore is a module :(

thanks,

greg k-h
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