Re: [gentoo-user] Which USB device on which controller?

[Mark Knecht <markknecht@gmail.com>]

On Thu, Feb 26, 2009 at 7:34 PM, Grant <emailgrant@gmail.com> wrote:
<SNIP>
>
> I have 2 Philips USB webcams attached to this system and controlled by
> media-video/motion.  One of the webcams is not functioning, and I'm
> supposed to make sure I don't have both of them attached to the USB
> 1.1 controller.  How can I do that?  I have:
>
> # lsusb
> Bus 001 Device 003: ID 04f9:002a Brother Industries, Ltd
> Bus 001 Device 001: ID 1d6b:0002
> Bus 002 Device 003: ID 0471:0329 Philips
> Bus 002 Device 002: ID 0471:0329 Philips
> Bus 002 Device 001: ID 1d6b:0001
>
> Is there any way to find out?

You might want to try usbview. It gives a graphical display of the USB
controllers and what devices are hooked to each controller. If you
click on any of the names in the left panel, controller or device, it
gives you the capabilities of the device. It's very small and builds
fast.

mark@lightning ~ $ eix usbview
[I] app-admin/usbview
     Available versions:  1.0-r3
     Installed versions:  1.0-r3(02:30:52 PM 01/31/2009)
     Homepage:            http://www.kroah.com/linux-usb/
     Description:         Display the topology of devices on the USB bus

mark@lightning ~ $

Hope that helps.

- Mark