2006/12/21, Sergio Gelato <[EMAIL PROTECTED]>:
>3) Once the above is taken care of, I find that
> /lib/nut/bcmxcp_usb -DD -u root
>gives me the following error:
>
>Communications with UPS lost: Receive error (Request command): COMMAND: 31
>
>RECONNECT USB DEVICE
>
>Poking around with strace, it appears that libusb (I tried the version
>in sarge, with a 2.6.12.6-based kernel) does a successful
>ioctl(USBDEVFS_SUBMITURB), then times out waiting for a reply.
>I'll try an etch 2.6.18 kernel next.
>
>This issue was discussed on the nut-upsuser mailing list on 2005-10-06;
>the thread's title was "trying to use powerware 3110 USB with NUT".
>Apparently still unsolved.
In further testing, I've been unable to get the manufacturer's own
LanSafe software, running on Windows XP SP2, to successfully talk to
that UPS over USB. So this is probably not a bug in nut. I'll leave it
at that and take that UPS into production (i.e., no more testing
opportunities for a while) using the old-style serial port interface
instead.
ok, if you moreover have a fall back solution, there is no hurry...
as a side note, when communication get stuck, the solution is
generally to reset the UPS by powering it off, waiting a bit (let's
say 10 sec. min.) and power everything back.
Arnaud
--
Linux / Unix Expert - MGE UPS SYSTEMS - R&D Dpt
Network UPS Tools (NUT) Project Leader - http://www.networkupstools.org/
Debian Developer - http://people.debian.org/~aquette/
OpenSource Developer - http://arnaud.quette.free.fr/
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