[Nut-upsuser] Confusing Generic USB UPS cannot be matched
R. G. Newbury
newbury at mandamus.org
Mon Nov 21 22:17:00 UTC 2011
I was dropping off junk at the waste transfer station and scarfed a UPS
out of the pile of old TV's and VCR's. It was in good physical condition
and as I expected, the battery was toast. A new RBC-2 battery restored
it to working condition. Then I tried to get it to talk to some
software. And I am having no luck.
The unit is branded as a Nexxtech Model 6118507 650VA imported into
Canada for Orbyx Electronics LLC. Nexxtech is a house brand for 'The
Source' ex-Radio Shack in Canada.
It has a red LCD display on the front and has the same physical layout
as some of the smaller APC BackUPS and CyberPower units. However trying
the powerpanel and APC specific drivers was fruitless.
The unit is 6" high x 4" wide by 12" deep. It has 3 UPS outlets plus 3
surge protected outlets and a USB port.
I am running Fedora 14 2.6.35.14-96.fc14.x86_64 with
nut-2.6.2-1.fc14.x86_64.rpm from the Fedora repo
I strongly suspect that this unit was made in China ( by MEC??) and
branded in various different ways (the 'Fry's Electronics' report is a
but of a giveaway! especially as there are no Fry's in Canada). A thread
on this list from 2006 had the same reported data Vendor/Product id but
a different branding. Unfortunately that thread had no resolution.
Due to the fact that this unit does not seem to report itself correctly
there is a possibility that it cannot be made 'intelligent'. But I'd
like to try, first.
I have installed nut and done the usual things. The unit is almost
'there', but not quite. I have trolled through the FAQ and the list but
nothing (except that one thread) seem to deal with this.
Details:
dmesg
[ 13.690421] usb 4-4: New USB device found, idVendor=0001,
idProduct=0000 #This is clearly bogus, and is what was
reported in the 2006 thread
[ 13.690667] usb 4-4: New USB device strings: Mfr=1, Product=2,
SerialNumber=0
[ 13.690909] usb 4-4: Product: MEC0002
[ 13.691164] usb 4-4: Manufacturer: MEC
[ 13.722779] generic-usb 0003:0001:0000.0003: hiddev97,hidraw2: USB
HID v1.00 Device [MEC MEC0002] on usb-0000:00:06.0-4/input0
lsusb -vv
# not much more info than dmesg, and it fails to discover the manufacturer!
Bus 004 Device 002: ID 0001:0000 Fry's Electronics
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0001 Fry's Electronics
idProduct 0x0000
bcdDevice 1.00
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 100mA
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 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 624
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Package Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
Check on the install by restarting the daemon:
It's all down to the driver.
# service ups restart
Stopping UPS monitor: [ OK ]
Stopping upsd: [ OK ]
Shutting down UPS driver controller: [FAILED]
Starting UPS driver controller: [FAILED]
Starting upsd: [ OK ]
Starting UPS monitor: [ OK ]
Using usbhid-ups (tried others, without result)
# cat ups.conf
<snip>
[nexxtech]
driver = usbhid-ups
vendorid = 0001
productid = 0000
port = /dev/bus/usb/004/004
# port = AUTO #per the documentation these made
# port = /dev/usb/hiddev0 # no difference
desc = "Nexxtech UPS"
Made sure the user/group settings are correct.
# cat upsd.user
<snip>
[nut]
password = nutpass
upsmon master
# cat upsmon.conf
<snip>
MONITOR nexxtech at localhost 1 nut nutpass master
<snip>
And this is what I get for my pains (same with user 'nut'):
# usbhid-ups -DD -u root -x vendorid=0001 -a nexxtech
Network UPS Tools - Generic HID driver 0.35 (2.6.2)
USB communication driver 0.31
0.000000 debug level is '2'
0.001663 upsdrv_initups...
0.084295 Checking device (0001/0000) (004/004)
2.088358 - VendorID: 0001
2.088416 - ProductID: 0000
2.088442 - Manufacturer: unknown
2.088467 - Product: unknown
2.088491 - Serial Number: unknown
2.088516 - Bus: 004
2.088541 Trying to match device
2.088614 Device does not match - skipping
I have NO idea why the Device does not match... but then I am not sure
what is is attempting to match. The installation is fine: upsd reports
periodically that it cannot communicate with the unit..
So what is the driver trying to match against? And can I amend any
settings to make it match? Can I provide any more info.
Geoff
--
R. Geoffrey Newbury
Barrister and Solicitor
Suite 106, 150 Lakeshore Road West
Mississauga, Ontario, L5H 3R2
o905-271-9600 f905-271-1638
newbury at mandamus.org
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