[Nut-upsuser] TrippLite HID 0.82: libusb_get_interrupt: Function not implemented

[Mike]

OpenBSD 6.1/amd64
nut-2.7.4p0 (from OpenBSD package)
UPS: Tripp-Lite OMNI1500LCDT

I cannot get the driver for the UPS to load without error.

Here are the commands, with the output, and the config files:

=======================================================
# upsdrvctl start
Network UPS Tools - UPS driver controller 2.7.4
Network UPS Tools - Generic HID driver 0.41 (2.7.4)
USB communication driver 0.33
No matching HID UPS found - check permissions on /dev/ugen* and /dev/usb*
Driver failed to start (exit status=1)


# ls -al /dev/usb*
crw-rw----  1 root  wheel   61,   0 May 11 15:45 /dev/usb0
crw-rw----  1 root  wheel   61,   1 May 11 15:45 /dev/usb1
crw-rw----  1 root  wheel   61,   2 May 11 15:45 /dev/usb2
crw-rw----  1 root  wheel   61,   3 May 11 15:45 /dev/usb3
crw-rw----  1 root  wheel   61,   4 May 11 15:45 /dev/usb4
crw-rw----  1 root  wheel   61,   5 May 11 15:45 /dev/usb5
crw-rw----  1 root  wheel   61,   6 May 11 15:45 /dev/usb6
crw-rw----  1 root  wheel   61,   7 May 11 15:45 /dev/usb7


[/dev/ugen* has the same permissions as above]

# grep _ups /etc/group
wheel:*:0:root,_ups



# upsdrvctl -D start
Network UPS Tools - UPS driver controller 2.7.4
   0.000000     Starting UPS: usb
Network UPS Tools - Generic HID driver 0.41 (2.7.4)
USB communication driver 0.33
Using subdriver: TrippLite HID 0.82
libusb_get_interrupt: Function not implemented


# upsdrvctl -DD start
Network UPS Tools - UPS driver controller 2.7.4
   0.000000
If you're not a NUT core developer, chances are that you're told to
enable debugging
to see why a driver isn't working for you. We're sorry for the
confusion, but this is
the 'upsdrvctl' wrapper, not the driver you're interested in.

Below you'll find one or more lines starting with 'exec:' followed by an
absolute
path to the driver binary and some command line option. This is what the
driver
starts and you need to copy and paste that line and append the debug
flags to that
line (less the 'exec:' prefix).

   0.000323     Starting UPS: usb
   0.000360     1 remaining attempts
   0.000378     exec:  /usr/local/bin/usbhid-ups -a usb
Network UPS Tools - Generic HID driver 0.41 (2.7.4)
USB communication driver 0.33
Duplicate driver instance detected! Terminating other driver!
[about a 20 second delay]
Using subdriver: TrippLite HID 0.82
libusb_get_interrupt: Function not implemented



# /usr/local/bin/usbhid-ups -a usb
Network UPS Tools - Generic HID driver 0.41 (2.7.4)
USB communication driver 0.33
Using subdriver: TrippLite HID 0.82
libusb_get_interrupt: Function not implemented





# cat ups.conf
# Network UPS Tools: example ups.conf
[usb]
        driver = usbhid-ups
        port = auto
        desc = "Example USB UPS"



# cat upsd.conf
# Network UPS Tools: example upsd configuration file



# cat upsd.users
# Network UPS Tools: Example upsd.users
[admin]
                password = mypass
                actions = SET
                instcmds = ALL

=======================================================


If I run upsdrvctl with -D flags, it appears to loop.  I can make
available that extensive output, if needed.

What should I try next?

thanks.