[Nut-upsuser] Nut and PowerWare 5115

Kjell Claesson kjell.claesson at epost.tidanet.se
Thu Apr 23 16:16:04 UTC 2009

torsdag 23 april 2009 11:24:00 skrev  Greg:
> Hi Arnaud and Kjell,
Hi Greg,
> One more thing. One thing I noticed is the QNAP find usb devices in
> /proc/bus/usb and Ubuntu find them in /dev/bus/usb.
> Could this have any effect?
Both yes and no. libusb > 0.1.12 is looking in /dev/bus/usb first then it 
should fall back to /proc/bus/usb. The problem is that i don't think that the 
rights is set on the /proc/bus/usb/00x/00x. It is normaly set to

-rw-rw-r-- 1 root usb 52 Apr 23  2009 /proc/bus/usb/002/003

so on my machine the udev set /dev/bus/usb/00x/00x right to

crw-rw-r-- 1 root nut 189, 130 Apr 23  2009 /dev/bus/usb/002/003

Check the rights on /proc and change it before you do a test if it's not
set right. The problem is that you ned a hotplug script to set this when you
plug it in. As the rights is reset on reboot. And if you plug it in another 
interface or order it change the place.


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