USBView Error on Hardy 8.04 AMD64

Paul Johnson pauljohn32 at
Tue Jun 3 18:27:05 UTC 2008

On Tue, Jun 3, 2008 at 12:07 PM, Steven Davies-Morris
<sdavmor at> wrote:
> I installed the USBViewer to help diagnose why I can't see my USB
> devices from within VirtualBox. When I look in "configure" I see that it
> is looking to find the devices file in /proc/bus/usb/devices. But
> there's nothing there. When opening the USBViewer (or doing a refresh
> after it's open) I get this message:
> Can not open the file /proc/bus/usb/devices
> Verify that you have USB compiled into your kernel,
> have the USB core modules loaded, and have the
> usbdev's filesystem mounted.

from the README.libusb file that is distributed with pilot-link. I
think your software is looking where the stuff is not now located, and
you can address by adding line in /etc/fstab.

	mount the kernel's usbfs
		Make sure you have usbfs mounted, which can be found in
		fstab, by adding the following line:

		   # <file system> <mount point>   <type>  <options>
		   none            /proc/bus/usb   usbfs   defaults

		Then 'mount -a' to make sure its mounted. You should
		now have a /proc/bus/usb directory heirarchy. The "new"
		udev and libusb will be using /dev/bus/usb, but many
		applications still use /proc/bus/usb, so we'll mount it
		until that gets deprecated.

 All of which is a lot to digest. First is it simply that I need to point
> to somewhere other than /proc/bus/usb/devices? Or if that's correct,
> what do I need to go and get to compile USB into my aMD64 kernel?
> --
> Cheers, and thanks as always for the support/education,
> SDM -- a 21st Century Schizoid Man
> Systems Theory internet music project: <>
> on MySpace: <>
> on Last FM: <>
> get "Codetalkers" *free* at <>
> NP: Oz vs Windies test cricket internet feed
> --
> ubuntu-users mailing list
> ubuntu-users at
> Modify settings or unsubscribe at:

Paul E. Johnson
Professor, Political Science
1541 Lilac Lane, Room 504
University of Kansas

More information about the ubuntu-users mailing list