Laptop Dock and rescanning USB?

Hi,

   I'm using NetBSD/i386 (-current)  on a ThinkPad T60.   I'm using it with
a dock and the dock appears to have a USB hub in the dock.   When I
take the laptop out of the dock I see the messages:

uhub5: at uhub4 port 6 (addr 2) disconnected
uhidev0: at uhub5 port 3 (addr 3) disconnected
....
uhub5 detached

When I put the laptop back in the dock, I don't see that uhub5 is reconnected.

Is there any way to force a rescan of a uhub, uhub4 in this case, so I can 
get my USB devices connected to the dock working after and removal and
reconnect to the dock?   A reboot finds the uhub5 again, but I hate to have
to reboot after each time I take the laptop out of the dock.

Thanks!
--Phil

-- 
Phil Nelson (phil at cs.wwu.edu) http://www.cs.wwu.edu/nelson
NetBSD: http://www.NetBSD.org  Coda: http://www.coda.cs.cmu.edu

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