no non dico i led del router ma della pendrive
lsmod | grep usb
root@OpenWrt:~# lsmod | grep usb
usbhid 20912 0
hid 58496 1 usbhid
ums_usbat 7280 0
usb_storage 33328 10 ums_usbat,ums_sddr55,ums_sddr09,ums_karma,ums_jumpshot,ums_isd200,ums_freecom,ums_datafab,ums_cypress,ums_alauda
usblp 8672 0
usbcore 98096 17 usbhid,ums_usbat,ums_sddr55,ums_sddr09,ums_karma,ums_jumpshot,ums_isd200,ums_freecom,ums_datafab,ums_cypress,ums_alauda,usb_storage,usblp,uhci_hcd,ohci_hcd,ehci_hcd
scsi_mod 70256 4 sg,ums_cypress,usb_storage,sd_mod
nls_base 4576 4 vfat,fat,ntfs,usbcore
input_core 19440 5 usbhid,gpio_buttons,hid,evdev,input_polldev
root@OpenWrt:~#
USB essential tutto installato, ma non funziona nemmeno la stampante