ugen0.1: <0x8086 XHCI root HUB> at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps) pwr                                                                                                             =SAVE (0mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0300
  bDeviceClass = 0x0009  <HUB>
  bDeviceSubClass = 0x0000
  bDeviceProtocol = 0x0003
  bMaxPacketSize0 = 0x0009
  idVendor = 0x0000
  idProduct = 0x0000
  bcdDevice = 0x0100
  iManufacturer = 0x0001  <0x8086>
  iProduct = 0x0002  <XHCI root HUB>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001

ugen0.2: <Prolific Technology Inc. USB-Serial Controller> at usbus0, cfg=0 md=HO                                                                                                             ST spd=FULL (12Mbps) pwr=ON (100mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0200
  bDeviceClass = 0x0000  <Probed by interface class>
  bDeviceSubClass = 0x0000
  bDeviceProtocol = 0x0000
  bMaxPacketSize0 = 0x0040
  idVendor = 0x067b
  idProduct = 0x2303
  bcdDevice = 0x0300
  iManufacturer = 0x0001  <Prolific Technology Inc.>
  iProduct = 0x0002  <USB-Serial Controller>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001