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CONFIG_USB_SUSPEND: │
│ │
│ If you say Y here, you can use driver calls or the sysfs │
│ "power/level" file to suspend or resume individual USB │
│ peripherals and to enable or disable autosuspend (see │
│ Documentation/usb/power-management.txt for more details). │
│ │
│ 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.