[Nut-upsuser] Unable to use nut-2.7.4 with Eaton 5E1500I USB

[Manuel Wolfshant]

Hello


     I have a remote Dell R310 to which I connected via USB a new UPS, 
model Eaton 5E1500I USB. Assuming I interpreted correctly the docs, it 
should normally work using the usbhid-ups driver. However, no matter 
what I tried, I get an error which you can also is included in the below 
paste:

    #usbhid-ups -DDDD -u root -x explore -x vendorid="0463" -a eaton
Network UPS Tools - Generic HID driver 0.41 (2.7.4)
USB communication driver 0.33
    0.000000     debug level is '4'
    0.000323 upsdrv_initups...
    0.000505     Checking device (0463/FFFF) (002/004)
    0.001550     - VendorID: 0463
    0.001576     - ProductID: ffff
    0.001613     - Manufacturer: unknown
    0.001634     - Product: unknown
    0.001654     - Serial Number: unknown
    0.001668     - Bus: 002
    0.001673     - Device release number: 0001
    0.001679     Trying to match device
    0.001721     Device matches
    0.001733     failed to claim USB device: could not claim interface 
0: Device or resource busy
    0.002796     detached kernel driver from USB device...
    0.002817     nut_usb_set_altinterface: skipped 
usb_set_altinterface(udev, 0)
    0.006167     Unable to get HID descriptor (error sending control 
message: Broken pipe)
    0.006187     HID descriptor length (method 1) -1
    0.006194     i=0, extra[i]=09, extra[i+1]=21
    0.006203     HID descriptor, method 2: (9 bytes) => 09 21 10 01 21 
01 22 25 02
    0.006209     HID descriptor length (method 2) 549
    0.006215     HID descriptor length 549
    0.006729     Unable to get Report descriptor: Broken pipe

I assume it's not a matter of incorrect permissions because I tested as 
root and on top of that they seem to be correctly set by udev:

     #ls -l  /dev/bus/usb/  -R

/dev/bus/usb/002:
total 0
crw-rw-r--. 1 root root    189, 128 Jun  7 11:38 001
crw-rw-r--. 1 root root    189, 129 Jun  1 02:01 002
crw-rw-r--. 1 root dialout 189, 131 Jun  7 11:29 004
[root at belgrade ~]# id nut
uid=57(nut) gid=57(nut) groups=57(nut),18(dialout)

/etc/ups/ups.conf contains:

[eaton]
         driver = usbhid-ups
         port = auto

     If that matters, the OS is a fully updated CentOS 6.9 and this 
(latest stable ) version of nut was packaged by me. The problem appears 
on any of the USB ports ( well, I tried the 2 in front and one in the 
back of the server ).

lsusb -v reports:

     # lsusb -v -s 002:004

Bus 002 Device 004: ID 0463:ffff MGE UPS Systems UPS
Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               1.10
   bDeviceClass            0 (Defined at Interface level)
   bDeviceSubClass         0
   bDeviceProtocol         0
   bMaxPacketSize0         8
   idVendor           0x0463 MGE UPS Systems
   idProduct          0xffff UPS
   bcdDevice            0.01
   iManufacturer           1
   iProduct                2
   iSerial                 0
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength           34
     bNumInterfaces          1
     bConfigurationValue     1
     iConfiguration          0
     bmAttributes         0xa0
       (Bus Powered)
       Remote Wakeup
     MaxPower               20mA
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass         3 Human Interface Device
       bInterfaceSubClass      0 No Subclass
       bInterfaceProtocol      0 None
       iInterface              0
         HID Device Descriptor:
           bLength                 9
           bDescriptorType        33
           bcdHID               1.10
           bCountryCode           33 US
           bNumDescriptors         1
           bDescriptorType        34 Report
           wDescriptorLength     549
           Warning: incomplete report descriptor
           Report Descriptor: (length is 9)
             Item(Main  ): (null), data=none
             Item(Main  ): (null), data=none
             Item(Main  ): (null), data=none
             Item(Main  ): (null), data=none
             Item(Main  ): (null), data=none
             Item(Main  ): (null), data=none
             Item(Main  ): (null), data=none
             Item(Main  ): (null), data=none
             Item(Main  ): (null), data=none
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x81  EP 1 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0008  1x 8 bytes
         bInterval              20
Device Status:     0x0001
   Self Powered

     Does anyone have any idea what should I do to fix this ?


     manuel