Comment 5 for bug 900384

Hi,

It appears the reason this was disabled in the Ubuntu kernel configs was because it is marked EXPERIMENTAL:

config USBIP_CORE
        tristate "USB/IP support (EXPERIMENTAL)"
        depends on USB && NET && EXPERIMENTAL
        default N
        ---help---
          This enables pushing USB packets over IP to allow remote
          machines direct access to USB devices. It provides the
          USB/IP core that is required by both drivers.

          For more details, and to get the userspace utility
          programs, please see http://usbip.sourceforge.net/.

          To compile this as a module, choose M here: the module will
          be called usbip-core.

          If unsure, say N.

The Ubuntu Kernel Team's config policy is to disable experimental options until it is requested they be enabled. Based on the information requested in this bug, I have enabled the following in the Precise 12.04 kernel:

    CONFIG_USBIP_CORE=m
    CONFIG_USBIP_HOST=m
    CONFIG_USBIP_VHCI_HCD=m

This change should be available in the next upload. Thanks.