quei comandi sembrano essere ininfluenti,cioè non scrive nessun messaggio e quando avvio imodem ora al primo stepo mi dice questo:

ehci-hcd seems to be present trying to remove it...
FATAL: Error removing ehci-hcd (/lib/modules/2.6.3-7mdk/kernel/drivers/usb/host/ehci-hcd.ko.gz): Device or resource busy
couldn't remove ehci-hcd try to rmmod ehci-hcd manually