[Nut-upsuser] Problem with NUT and an Eaton 5PX UPS, usbhid-ups won't start

[Stefan]

Hello,

I have trouble connecting to an Eaton 5PX UPS via the usbhid-ups
driver. It is supposed to be fully working according to the
compatibility list (support level 5).

OS: A fresh Debian stable install. Then changed the apt source to
unstable and did "aptitute update" and "aptitude install nut". Nothing
else. I did that, because the "unstable" package is a more recent
version and I've already tried with "stable" a few days before. The
hard drive was changed, so there are no old version leftovers to worry
about.

NUT version: the Debian package says 2.6.4-2.3

NUT installation method: Debian unstable package
(http://packages.debian.org/sid/nut)

UPS info: Eaton 5PX3000iRT3U, which is the European (220V) version of
5PX3000RT3U.
http://powerquality.eaton.com/5PX3000iRT3U.aspx?CX=101

I tried to power cycle the machine, as well as the UPS.

Permissions seem fine:
root at backup:/usr/share/doc/nut# ls -al /dev/bus/usb/006/002
crw-rw-r-- 1 root nut 189, 641 Feb  8 01:26 /dev/bus/usb/006/002

/lib/nut/usbhid-ups -DDDD -a myups
whole log: http://pastebin.com/Xc57QUft
relevant part:
   0.265426     Checking device (0463/FFFF) (006/002)
   0.570524     - VendorID: 0463
   0.570560     - ProductID: ffff
   0.570578     - Manufacturer: EATON
   0.570595     - Product: Eaton 5PX
   0.570612     - Serial Number: G097C22040
   0.570629     - Bus: 006
   0.570646     Trying to match device
   0.570678     Device matches
   0.621532     HID descriptor, method 1: (9 bytes) => 09 21 10 01 21
01 22 14 0a
   0.621569     i=0, extra[i]=09, extra[i+1]=21
   0.621595     HID descriptor, method 2: (9 bytes) => 09 21 10 01 21
01 22 14 0a
   0.621614     HID descriptor length 2580
   4.622305     Unable to get Report descriptor: Connection timed out

I don't know how to provide more info about that connection timeout.

Steven