Выполнил последовательно:
[root@oivtteacher usb]# uname -a
Linux oivtteacher.localdomain 2.6.32-std-def-alt20.M50P.1 #1 SMP Mon Sep 6 11:11:43 UTC 2010 i686 GNU/Linux
[root@oivtteacher usb]# lsmod|grep usb
usblp 10014 1
usbhid 34995 0
hid 65832 1 usbhid
usb_storage 32471 1
usb_libusual 9435 1 usb_storage
usbcore 142693 10 usblp,ohci_hcd,uhci_hcd,usbhid,ehci_hcd,usb_storage,usb_libusual
nls_base 6457 7 nls_utf8,nls_cp866,vfat,fat,isofs,udf,usbcore
scsi_mod 142649 5 sr_mod,sg,usb_storage,libata,sd_mod
[root@oivtteacher usb]# modprobe usbhid
[root@oivtteacher usb]# cat /etc/apcupsd/apcupsd.conf | egrep -i "usb|device" | egrep -v "^#"
UPSCABLE usb
UPSTYPE usb
DEVICE
[root@oivtteacher usb]#