CONFIG_USB_ACM
  This driver supports USB modems and ISDN adapters which support the
  Communication Device Class Abstract Control Model interface.
  Please read <file:Documentation/usb/acm.txt> for details.

  If your modem only reports "Cls=ff(vend.)" in the descriptors in
  /proc/bus/usb/devices, then your modem will not work with this
  driver.

  This code is also available as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want).
  The module will be called acm.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.

CONFIG_USB_AUDIO
  Say Y here if you want to connect USB audio equipment such as
  speakers to your computer's USB port.

  This code is also available as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want).
  The module will be called audio.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.

CONFIG_USB_BLUETOOTH_TTY
  Say Y here if you want to connect a USB Bluetooth device to your
  computer's USB port. You will need the Bluetooth stack (available
  at <http://developer.axis.com/software/index.shtml>) to fully use
  the device.

  This driver implements a tty inteface to a Bluetooth device.  If
  you want to use a socket based Bluetooth stack (like the BlueZ
  stack), do not use this driver.

  If in doubt, say N here.

  This code is also available as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want).
  The module will be called bluetty.o. If you want to compile it as
  a module, say M here and read <file:Documentation/modules.txt>.

CONFIG_USB_MIDI
  Say Y here if you want to connect a USB MIDI device to your
  computer's USB port. This driver is for devices that comply with
  'Universal Serial Bus Device Class Definition for MIDI Device'.

  The following devices are known to work:
    * Steinberg USB2MIDI
    * Roland MPU64
    * Roland PC-300
    * Roland SC8850
    * Roland UM-1
    * Roland UM-2
    * Roland UA-100
    * Yamaha MU1000

  This code is also available as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want).
  The module will be called usb-midi.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.

CONFIG_USB_PRINTER
  Say Y here if you want to connect a USB printer to your computer's
  USB port.

  This code is also available as a module ( = code which can be
  inserted in and removed from the running kernel whenever you want).
  The module will be called printer.o. If you want to compile it as a
  module, say M here and read <file:Documentation/modules.txt>.