Nut upsuser - Jul 2010 - NUT upsdrv Using bcmxcp_usb Won't Connect to UPS

I can't seem to get NUT to connect to my new PowerWare (Eaton) 5115.
(Linux 2.6.34.1  x86_64, Gentoo)

# /etc/init.d/upsdrv start
 * Caching service dependencies ...                                     
                     [ ok ]
 * Starting UPS drivers ...
Network UPS Tools - UPS driver controller 2.4.3
Network UPS Tools - BCMXCP UPS driver 0.23 (2.4.3)
USB communication subdriver 0.18
Can't claim POWERWARE USB interface: could not claim interface 0: Device
or resource busy
Unable to find POWERWARE UPS device on USB bus (USB)


What would already 'claim' the UPS?

USB sees the UPS, from lsusb:

...
Bus 003 Device 005: ID 06da:0002 Phoenixtec Power Co., Ltd UPS
...

On Jul 24, 2010, at 5:36 PM, Richard wrote:
> I can't seem to get NUT to connect to my new PowerWare (Eaton) 5115.
> (Linux 2.6.34.1  x86_64, Gentoo)
>
> # /etc/init.d/upsdrv start
> * Caching service dependencies ...
>                     [ ok ]
> * Starting UPS drivers ...
> Network UPS Tools - UPS driver controller 2.4.3
> Network UPS Tools - BCMXCP UPS driver 0.23 (2.4.3)
> USB communication subdriver 0.18
> Can't claim POWERWARE USB interface: could not claim interface 0:  
> Device
> or resource busy
> Unable to find POWERWARE UPS device on USB bus (USB)
>
>
> What would already 'claim' the UPS?
Possibly an older version of this driver? Try running "ps auxww | grep  
bcmxcp" to see if an older version of the driver wasn't stopped when  
you upgraded.

I'm guessing this is the upgrade scenario described in this thread:
http://forums.gentoo.org/viewtopic-p-6362412.html
  ?