NUT : no USB buses found

[mdastous]

Hi,

I cannot get NUT service to work properly... 
My problem is very similar to this older post: https://forum.opnsense.org/index.php?topic=20218.0.

Running the following command: /usr/local/libexec/nut/usbhid-ups -a ups1 -DDDD gives:

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  0.000211     [D1] debug level is '4'
   0.000495     [D1] Succeeded to become_user(nut): now UID=316 GID=316
   0.000533     [D1] upsdrv_initups (non-SHUT)...
   0.000541     [D2] Initializing an USB-connected UPS with library libusb-1.0.0 (API: 0x1000102) (NUT subdriver name='USB communication driver (libusb 1.0)' ver='0.47')
   0.000716     [D2] libusb1: No appropriate HID device found
   0.000731     libusb1: Could not open any HID devices: no USB buses found
   0.000736     No matching HID UPS found
   0.000749     upsnotify: failed to notify about state 4: no notification tech defined, will not spam more about it



But running it as root work just fine:
/usr/local/libexec/nut/usbhid-ups -a ups1 -DDDD -u root:

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0.000467     [D1] Succeeded to become_user(root): now UID=0 GID=0
   0.000506     [D1] upsdrv_initups (non-SHUT)...
   0.000869     [D1] nut_libusb_open: invalid libusb bus number 0
   0.000952     [D1] nut_libusb_open: invalid libusb bus number 0
   0.001005     [D1] nut_libusb_open: invalid libusb bus number 0
   0.001055     [D1] nut_libusb_open: invalid libusb bus number 0
   0.016313     Using subdriver: CyberPower HID 0.80
   0.016324     [D1] 82 HID objects found
   0.017039     [D1] Path: UPS.PowerSummary.iProduct, Type: Feature, ReportID: 0x01, Offset: 0, Size: 8, Value: 1
...


Executing usbconfig, I can see my UPS is correctly connected:

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ugen2.2: <PR1500LCDRT2U UPS Cyber Power System, Inc.> at usbus2, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (100mA)


If anyone has a suggestion it would be welcome.

[mdastous]

Strangely, unplug / re-plug the USB cable triggered something that fixed the permissions.