This is not a duplicate of Bug #572262.
I installed the patch from proposed (which fixes the #572262) but the bug still
occurs.
I get exactly the same error message with nut 2.4.3-1ubuntu3.1 and
PowerWalker VI800 UPS. Now I am using the karmic version of nut
(http://packages.ubuntu.com/karmic/nut
** This bug is no longer a duplicate of bug 572262
[SRU] libusb_get_report: error sending control message: Operation not
permitted
--
libusb_get_interrupt: Connection timed out
https://bugs.launchpad.net/bugs/575573
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