[Nut-upsuser] newhidups dies after a few hours

[Ricardo Bugalho]

Hello, 
I'm using NUT to manage a MGE Ellipse ASR UPS, with the newhidups
driver.
It works fine, except that after a few hours, I get a few errors from
the kernel and the driver dies.

Here's the output from the syslog:
Apr 26 02:00:41 ezquiel kernel: usb 1-1: usbfs: USBDEVFS_CONTROL failed
cmd newhidups rqt 128 rq 6 len 255 ret -110
Apr 26 02:00:43 ezquiel last message repeated 2 times
Apr 26 02:00:43 ezquiel upsd[4570]: Data for UPS [mgeups] is stale -
check driver
Apr 26 02:00:44 ezquiel upsmon[4573]: Poll UPS [mgeups at localhost] failed
- Data stale
Apr 26 02:00:45 ezquiel upsd[4570]: UPS [mgeups] disconnected - check
driver
Apr 26 02:00:45 ezquiel upsd[4570]: Can't connect to UPS [mgeups]
(newhidups-auto): Connection refused
Apr 26 02:00:49 ezquiel upsmon[4573]: Poll UPS [mgeups at localhost] failed
- Driver not connected

I'm using a 2.6.16 kernel and NUT 2.0.3 (both are stock debian builds).

Anyone has any ideas about the problem?

-- 
        Ricardo