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    SubjectRe: 2.6.31-rc0-git: lsusb stopped working?
    On Tue, Jun 23, 2009 at 05:09:44PM +0200, Frans Pop wrote:
    > Pavel Machek wrote:
    > > On thinkpad x60. Otherwise usb seems to work, including btusb dongle.
    > >
    > > /proc/bus/usb does not seem to exists.
    >
    > Correct. usbfs has been removed in 2.6.31.

    To be pedantic, no, the filesystem has not been "removed". Only the
    user-mountable filesystem option has been moved under CONFIG_EMBEDDED,
    as there should not be any userspace code that still uses that interface
    into usbfs.

    The recommended solution is to use the device nodes for usbfs, which
    have been around for a few years now, and usually show up under
    /dev/bus/usb/ and have the proper ACL and permissions that the
    filesystem nodes can't have for a variety of reasons.

    If for some reason you can not use the /dev/bus/usb/ device nodes, you
    can enable the config option by turning on CONFIG_EMBEDDED.

    Hope this helps,

    greg k-h


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