Hello,

I have problem using APC Back-UPS ES 550 with FreeBSD 7.1-STABLE (same problem with 7.0 and up)- after boot kernel detects UPS and shows it like that:
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ugen0: <APC Back-UPS ES 550 FW:828.D2 .I USB FW:D2, class 0/0, rev 1.10/1.06, addr 2> on uhub6
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But apcupsd does not detect it, instead it wrote into logs:
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Mon Jan 05 16:27:09 EET 2009  apcupsd FATAL ERROR in newups.c at line 103
Mutex lock failure. ERR=Resource deadlock avoided
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And I am able to use it after removal of USB cable from computer and inserting it back into same usb connector:
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Jan 5 16:28:16 testiserver kernel: ugen0: at uhub6 port 1 (addr 2) disconnected
Jan  5 16:28:17 testiserver kernel: ugen0: detached
Jan 5 16:28:24 testiserver root: Unknown USB device: vendor 0x051d product 0x0002 bus uhub6 Jan 5 16:28:24 testiserver kernel: ugen0: <APC Back-UPS ES 550 FW:828.D2 .I USB FW:D2, class 0/0, rev 1.10/1.06, addr 2> on uhub6
Jan  5 16:28:25 testiserver apcupsd[1604]: Communications with UPS restored.
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