[Nut-upsuser] NUT Two Apc UPSes on Windows

[Rafał Pawłaszek]

Hi,

I've got a question about managing two UPSes under NUT.

I have two similar model APC usb-connected UPSes to work with, but don't
know how to manage them simultaneously from under Windows. Long story
short, my ups.conf looks like this:

--- ups.conf ---
[ups1]
  driver= usbhid-ups
  port= auto
  serial=AS1054340323
[ups2]
  driver= usbhid-ups
  port= auto
  serial=AS1026662626
--- ups.conf ---

I tried all the combinations with vendorid, productid, vendor, product as
in the manual for usbhid-ups and libusb's test

--- TestLibUsb ---
- Manufacturer : American Power Conversion
- Product      : Smart-UPS X 1500 FW:COM 03.6 / UPS 03.6
- Serial Number: AS1054340323
...
       idVendor:            051Dh
       idProduct:           0003h
...
- Manufacturer : American Power Conversion
- Product      : Smart-UPS X 1500 FW:COM 03.0 / UPS 03.1
- Serial Number: AS1026662626
...
       idVendor:            051Dh
       idProduct:           0003h
...
--- TestLibUsb ---

and tested them with usbhid-ups -a ups1 or usbhid-ups -a ups2. Moreover,
the parameter productid included in the specs in ups.conf caused error:
"GenerateConsoleCtrlEvent error : 87".

Issuing usbhid-ups -a ups1 or usbhid-ups -a ups2 works, but
   1. exclusively - I can see only one UPS at a time (trying to run second
ups while the first is running gives: "Can't claim USB device [051d:0003]:
libusb0-dll:err [claim_interface] could not claim interface 0, win error:
The requested resource is in use)
   2. randomly - This means that no matter what I put into ups.conf NUT
will pick anything that responds first.
which eventually is useless.

Thus my question is whether it is an error of usblib or NUT's usbhid-ups
and more importantly: how to overcome this?. usblib itself is capable of
enumerating the devices that's why I'm issuing my question here.

Thanks in advance for help,
Rafal
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