  2: Wireless Keyboard K520
     Device path  : /dev/hidraw5
     WPID         : 2011
     Codename     : K520
     Kind         : keyboard
     Protocol     : HID++ 1.0
     Polling rate : 20 ms (50Hz)
     Serial number: C17F6771
          Firmware: 26.00.B0012
             Other: 00.07
     The power switch is located on the top case.
     Notifications: battery status (0x100000).
     Battery: full, discharging.

Has Swap Fn register
