[Nut-upsuser] Eco Eclipse 1600 connects via USB put does not put out any data:

[Stefan Schumacher]

Hello

Initial Disclaimer: I used this tutorial. I know its in german but the
entries to be made in the configuration files are marked and should be
able to identify if there are any errors.

https://techbotch.org/blog/ups-setup/index.html

After several power failures and damaged fuses I decided to give Eaton
& Nut another try. Eaton because the model I bought seems to be the
one on the market which has the most power without a permanent fan.
Unfortunately I don't even get as far as the last time. Lets begin
with the basic info:

I am using: Debian Bookworm 12.6 with these packages, which were
installed from the official Debian Repository.
ii  nut                             2.8.0-7
  all          network UPS tools - metapackage
ii  nut-client                      2.8.0-7
  amd64        network UPS tools - clients
ii  nut-server                      2.8.0-7
  amd64        network UPS tools - core system

My device is a: https://www.eaton.com/de/de-de/skuPage.EL1600USBDIN.html

There is a connection between the USV and the server it protects.
lsusb = Bus 001 Device 002: ID 0463:ffff MGE UPS Systems UPS

What follows is the output of the driver. As you can see I am running
it as root. What are the next steps I should take?

Thanks in advance
Stefan Malte

root at mars:/usr/lib/nut# ./usbhid-ups -DD -a Eaton
Network UPS Tools - Generic HID driver 0.47 (2.8.0)
USB communication driver (libusb 1.0) 0.43
   0.000000     [D1] debug level is '2'
   0.001566     [D2] Initializing an USB-connected UPS with library
libusb-1.0.26 (API: 0x1000109) (NUT subdriver name='USB communication
driver (libusb 1.0)' >
   0.001575     [D1] upsdrv_initups (non-SHUT)...
   0.004892     [D2] Checking device 1 of 7 (1D6B/0003)
   0.004908     [D1] Failed to open device (1D6B/0003), skipping:
Access denied (insufficient permissions)
   0.004911     [D2] Checking device 2 of 7 (0BDA/5452)
   0.004917     [D1] Failed to open device (0BDA/5452), skipping:
Access denied (insufficient permissions)
   0.004921     [D2] Checking device 3 of 7 (1D6B/0002)
   0.004926     [D1] Failed to open device (1D6B/0002), skipping:
Access denied (insufficient permissions)
   0.004929     [D2] Checking device 4 of 7 (1D6B/0003)
   0.004937     [D1] Failed to open device (1D6B/0003), skipping:
Access denied (insufficient permissions)
   0.004941     [D2] Checking device 5 of 7 (0463/FFFF)
   0.463157     [D2] - VendorID: 0463
   0.463198     [D2] - ProductID: ffff
   0.463215     [D2] - Manufacturer: EATON
   0.463231     [D2] - Product: Ellipse ECO
   0.463249     [D2] - Serial Number: 000000000
   0.463268     [D2] - Bus: 001
   0.463287     [D2] - Device: unknown
   0.463314     [D2] - Device release number: 0100
   0.463332     [D2] Trying to match device
   0.463350     [D2] match_function_subdriver (non-SHUT mode):
matching a device...
   0.463603     [D2] Device matches
   0.463624     [D2] Reading first configuration descriptor
   0.463662     [D2] failed to claim USB device: Resource busy
   0.463689     [D2] Kernel driver already detached
   0.463714     [D2] failed to claim USB device: Resource busy
   0.463740     [D2] Kernel driver already detached
   0.463764     [D2] failed to claim USB device: Resource busy
   0.463787     [D2] Kernel driver already detached
   0.463809     [D2] failed to claim USB device: Resource busy
   0.463831     [D2] Kernel driver already detached
   0.463854     Can't claim USB device [0463:ffff]@0/0: Entity not found