[Nut-upsuser] Can't claim USB device

[Brandon Metcalf]

----- Arjen de Korte <nut+users at de-korte.org> wrote:
> Citeren Brandon Metcalf <brandon at geronimoalloys.com>:
> 
> > When trying to start the driver I get
> >
> >   $ sudo ./upsdrvctl start
> >   Network UPS Tools - UPS driver controller 2.4.1
> >   Network UPS Tools - Generic HID driver 0.34 (2.4.1)
> >   USB communication driver 0.31
> >   Can't claim USB device [09ae:3012]: could not detach kernel driver  
> > from interface 0: Operation not permitted
> >   Driver failed to start (exit status=1)
> >
> > The UPS is detected when connected.  From the output of dmesg
> >
> >   [689484.575866] hiddev96hidraw2: USB HID v1.10 Device [Tripp Lite   
> > TRIPP LITE SMART2200RMXL2U ] on usb-0000:00:03.0-2
> >
> > lsusb also lists the UPS.
> >
> > Any ideas?
> 
> Apparently, hotplug/udev isn't working for you. Read the INSTALL  
> document that came with the sources and follow the instructions in  
> 'Build and install' paragraph 6 on how to temporarily work around  
> this. We probably can't help you fix this however, you'd have to ask  
> the people from Ubuntu to do that.

Yep, if I add "-u root" to upsdrvctl it works.  I believe I need a copy of the hotplug rules file.

Brandon