linux-kernel - Re: [RFC PATCH] USB: remove CONFIG_USB

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Message-ID: <CAAJw_ZuySesFhEwZBHBXM4mkFQONHLuAQ5oKcbvcVkUDsBzYcQ@mail.gmail.com>
Date:	Fri, 25 May 2012 21:31:42 +0800
From:	Jeff Chua <jeff.chua.linux@...il.com>
To:	Kay Sievers <kay@...y.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Alan Stern <stern@...land.harvard.edu>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] USB: remove CONFIG_USB_DEVICEFS

On Fri, May 25, 2012 at 5:01 PM, Kay Sievers <kay@...y.org> wrote:
> On Fri, May 25, 2012 at 9:16 AM, Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
>> On Fri, May 25, 2012 at 03:06:33PM +0800, Jeff Chua wrote:
>
>>> >> VMware USB Arbitration Service Version 8.4.19
>>> >> USB: Unable to open "/proc/bus/usb/devices" (No such file or directory).
>
> I think vmware tries to open the usual /dev/bus/usb/ nodes directly
> after it has tried the deprecated /proc nodes.
>
> Udev would create the /dev/bus/ nodes.
>
> Or the kernel would create them itself if:
>  CONFIG_DEVTMPFS=y
>  CONFIG_DEVTMPFS_MOUNT=y
> is used.
>
>> Use /dev/usb/ device nodes instead.  If you have a distro that has static
>> device nodes, just add them to the package that has those nodes, and you
>> should be fine.  That will bring you into the mid 2000's as far as
>> device nodes go, I'm amazed that this hasn't been noticed before now.
>
> Many distros have disabled the USB_DEVICEFS option and there are
> usually no reports about problems any more.
>
> But I guess the number of systems that want to run USB devices, and
> pass them along to virtualization, but have an unmanaged static /dev
> are close to one user these days. :)

Yep, it's just me (the one), I guess. Configured kernel as suggested,
and it's all working now.

Sorry, as for the distro, it's just bare minimum...but works wonderfully well.

Thanks again for all your help!

Jeff
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