CONFIG_USB_SUSPEND:                                                                                    ?
  ?                                                                                                        ?
  ? If you say Y here, you can use driver calls or the sysfs                                               ?
  ? "power/state" file to suspend or resume individual USB                                                 ?
  ? peripherals.                                                                                           ?
  ?                                                                                                        ?
  ? Also, USB "remote wakeup" signaling is supported, whereby some                                         ?
  ? USB devices (like keyboards and network adapters) can wake up                                          ?
  ? their parent hub.  That wakeup cascades up the USB tree, and                                           ?
  ? could wake the system from states like suspend-to-RAM.                                                 ?
  ?                                                                                                        ?
  ? If you are unsure about this, say N here.                                                              ?
  ?                                                                                                        ?
  ? Symbol: USB_SUSPEND [=y]                                                                               ?
  ? Prompt: USB selective suspend/resume and wakeup (EXPERIMENTAL)                                         ?
  ?   Defined at drivers/usb/core/Kconfig:89                                                               ?
  ?   Depends on: USB_SUPPORT && USB && PM && EXPERIMENTAL                                                 ?
  ?   Location:                                                                                            ?
  ?     -> Device Drivers                                                                                  ?
  ?       -> USB support (USB_SUPPORT [=y])                                                                ?
  ?         -> Support for Host-side USB (USB [=m])                                                        ?
  ?   Selected by: USB_OTG && USB_SUPPORT && USB && EXPERIMENTAL