OK .. thanks
... but I still can't seem to figure out which device is the UPS
the contents of /dev/usb are:
crw-rw---- 1 root root 180, 32 2001-03-25 16:04 ez0 -15
crw-rw---- 1 root lp 180, 0 2001-03-25 16:04 lp0 - 15
crw-rw---- 1 root root 180, 16 2001-03-25 16:04 mouse0 - 15
crw-rw---- 1 root root 180, 48 2001-03-25 16:04 scanner0 - 15
crw-rw---- 1 root root 180, 64 2001-03-25 16:04 rio500
but I only have four usb ports, nor do I have a scanner and I've never connected my rio to this computer cause there's no software for it for linux
(obviously there is no /dev/usb/hiddev0)