On 08/11/10 16:00, lee wrote: > >> (for preceding example, I get >> crw-rw-r-- 1 root nut 189, 513 Nov 7 20:39 /dev/bus/usb/005/002, and it >> is the only device for my UPS). > > How do you know which entry your UPS is? > given by lsusb. In my case Bus 005 Device 002: ID 0463:ffff MGE UPS Systems UPS that's my UPS, thus /dev/bus/usb/005/002