Re: usb devices get redetected all the time in 2.6.0-test{7,9}

From: Greg KH (greg_at_kroah.com)
Date: 10/29/03

  • Next message: Faik Uygur: "(no subject)" 
    Date:	Wed, 29 Oct 2003 12:01:12 -0800
To: Soeren Sonnenburg <kernel@nn7.de>

    On Wed, Oct 29, 2003 at 08:15:26AM +0100, Soeren Sonnenburg wrote:
    > Hi.
    >
    > When I attach a camera to a 2.4. based machine hotplug starts up some
    > script to download images of that camera and fine thats it.
    >
    > In 2.6.0-testX I see kernel messages like:
    >
    > hub 2-0:1.0: new USB device on port 1, assigned address 2
    > bus usb: add device 2-1
    > bound device '2-1' to driver 'usb'
    > bus usb: add device 2-1:1.0
    > bus usb: remove device 2-1:1.0
    > bus usb: add device 2-1:1.0
    > bus usb: remove device 2-1:1.0
    > bus usb: add device 2-1:1.0
    > bus usb: remove device 2-1:1.0
    > bus usb: add device 2-1:1.0
    > [...]
    >
    > and several of these hotplug scripts get started... Is this a wanted
    > behaviour and something has to be fixed in userspace or is it a kernel
    > bug ?

    Does this settle down after a bit, or does the add/remove stuff keep
    going on for a while?

    Can you enable CONFIG_USB_DEBUG and see if you get any more information
    in the kernel debug log as to why this is happening?

    thanks,

    greg k-h
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