eu tenho o mesmo tipo de problema. Tendo os módulos carregados, o bind mostra isso:
root@pi:~# usbip -d bind -b 1-1.5.5
usbip: debug: /build/linux-tools-TqR1ks/linux-tools-3.2.17/drivers/staging/usbip/userspace/src/usbip.c:134:[run_command] running command: 'bind'
usbip: debug: /build/linux-tools-TqR1ks/linux-tools-3.2.17/drivers/staging/usbip/userspace/src/usbip_bind.c:162:[unbind_other] 1-1.5.5:1.0 -> unknown
usbip: debug: /build/linux-tools-TqR1ks/linux-tools-3.2.17/drivers/staging/usbip/userspace/src/usbip_bind.c:162:[unbind_other] 1-1.5.5:1.1 -> unknown
usbip: debug: /build/linux-tools-TqR1ks/linux-tools-3.2.17/drivers/staging/usbip/userspace/src/utils.c:65:[modify_match_busid] write "add 1-1.5.5" to /sys/bus/usb/drivers/usbip-host/match_busid
usbip: debug: /build/linux-tools-TqR1ks/linux-tools-3.2.17/drivers/staging/usbip/userspace/src/usbip_bind.c:101:[bind_usbip] bind driver at 1-1.5.5:1.0 failed
usbip: debug: /build/linux-tools-TqR1ks/linux-tools-3.2.17/drivers/staging/usbip/userspace/src/usbip_bind.c:101:[bind_usbip] bind driver at 1-1.5.5:1.1 failed
usbip: error: could not bind device to usbip-host
usbip: debug: /build/linux-tools-TqR1ks/linux-tools-3.2.17/drivers/staging/usbip/userspace/src/utils.c:65:[modify_match_busid] write "del 1-1.5.5" to /sys/bus/usb/drivers/usbip-host/match_busid
Alguma ideia @pietrushnic?