[Bug 239025] [NEW] usbhid-ups not behaving with Tripplite UPS

[Gavin Hurlbut]

Public bug reported:

Binary package hint: nut

I  am currently running gutsy on my server (pending enough time for a
full upgrade to hardy), but have upgraded nut to the hardy deb package
(2.2.1-2.1ubuntu7).

I have a TrippLite UPS that says on the box:  OMNIPLUS1000LCD.  Linux
sees it fine as a HID device, and this version of nut will recognize it
when using usbhid-ups.  However, upsd can't use it, and manually running
the usbhid-ups driver at debug level 1 showed me something that led me
to a conclusion...  It's stuck in an infinite loop.

lsusb reports:
Bus 001 Device 003: ID 09ae:2007 Tripp Lite 

/etc/nut/ups.conf:
[tripplite]
        driver = usbhid-ups
        port = auto
        vendorid = 09ae
        productid = 2007

when running /lib/nut/usbhid-ups -D -a tripplite :

debug level is '1'
upsdrv_initups...
Using subdriver: TrippLite HID 0.2 (experimental)
Path: UPS.PowerSummary.iProduct, Type: Feature, ReportID: 0x28, Offset: 0, Size: 8, Value: 1.000000
<<SNIP TO END OF SECTION>>
Path: UPS.OutletSystem.Outlet.DelayBeforeReboot, Type: Feature, ReportID: 0x17, Offset: 0, Size: 16, Value: 65535.000000
Detected a UPS: Tripp Lite /TRIPP LITE UPS 
upsdrv_initinfo...
upsdrv_updateinfo...
Got 8 HID objects...
NUT doesn't use this HID object
NUT doesn't use this HID object
NUT doesn't use this HID object
Got 1 HID objects...
Got 1 HID objects...
Got 8 HID objects...
<<SNIP>>

It goes on like this indefinitely.  It also doesn't seem to reach line
755 in usbhid-ups.c (line number from 2.2.1 tagged in svn in case it has
moved):

 upsdebugx(1, "took %.3f seconds handling interrupt reports...\n",
interval());

I noticed in the change logs for 2.2.2:

Tue Apr 22 17:58:12 UTC 2008 / Arjen de Korte <arjen at de-korte.org>

 - drivers/usbhid-ups: only check once for input reports in
   upsdrv_updateinfo() to prevent lockups if the UPS floods the
   driver (some Tripplite units will generate one each time you
   ask them) [ backported r1450 ]


So I guess the end result is:  this bug may be fixed in the upstream,
but ubuntu doesn't have the fix in yet?  I also noticed that intrepid is
so far using the same version as hardy.

** Affects: nut (Ubuntu)
     Importance: Undecided
         Status: New

-- 
usbhid-ups not behaving with Tripplite UPS
https://bugs.launchpad.net/bugs/239025
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