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    SubjectRe: [RFC PATCH] USB: remove CONFIG_USB_DEVICEFS
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    On Fri, May 25, 2012 at 5:52 AM, Greg Kroah-Hartman
    <gregkh@linuxfoundation.org> wrote:
    > On Thu, May 24, 2012 at 11:55:16PM +0800, Jeff Chua wrote:
    >> On Thu, Apr 26, 2012 at 11:12 PM, Greg Kroah-Hartman
    >> <gregkh@linuxfoundation.org> wrote:
    >> > On Thu, Apr 26, 2012 at 11:06:45AM -0400, Alan Stern wrote:
    >> >> On Wed, 25 Apr 2012, Greg Kroah-Hartman wrote:
    >> >>
    >> >> > This option has been deprecated for many years now, and no userspace
    >> >> > tools use it anymore, so it should be safe to finally remove it.
    >> >> >
    >> >> > Reported-by: Kay Sievers <kay@vrfy.org>
    >> >> > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    >> >> >
    >> >> > Anyone object to me queuing this up for the 3.5 kernel release?
    >> >>
    >> >> I'm not sure about this.  There are a few systems still floating around
    >> >> that don't use udev; on those systems /proc/bus/usb is the only way for
    >> >> user programs to control USB devices.  Admittedly, I have no idea
    >> >> whether any such systems will be using 3.5 or later kernels...
    >> >
    >> > They don't have to use udev, they can use devtmpfs (which is what the
    >> > majority of embedded systems use today), or they can just use static
    >> > device nodes to get access to these devices, the char node is still
    >> > present, we aren't getting rid of them at all.
    >>
    >> Looks like vmware is breaking. Can't find any usb devices. I'm not using udev.
    >
    > vmware doesn't use usbfs, otherwise how would it be working on all of
    > the systems out there that haven't mounted usbfs for years?
    >
    > What exactly broke?  What version of vmware are you using, and is the
    > problem in the guest or host?
    >
    > We delayed other usbfs changes for years due to vmware "issues", it
    > wouldn't be the first time we've had to handle this :(


    VMWare workstation 8.0.3

    # vmware-usbarbitrator -f --info
    DICT product.buildNumber = 703057
    DICT product.version = 8.0.3
    DICT workstation.product.version = 8.0.3
    DICT product.name = VMware Workstation
    VMware USB Arbitration Service Version 8.4.19
    USB: Unable to open "/proc/bus/usb/devices" (No such file or directory).
    No USB enumerator!

    If I revert back to git pull 3 years earlier, it works.

    Thanks,
    Jeff
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