ugen0.1: <Intel XHCI root HUB> at usbus0, cfg=0 md=HOST spd=SUPER (5.0Gbps) pwr=SAVE (0mA) ugen0.1.0: uhub0: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> bLength = 0x0012 bDescriptorType = 0x0001 bcdUSB = 0x0300 bDeviceClass = 0x0009 <HUB> bDeviceSubClass = 0x0000 bDeviceProtocol = 0x0003 bMaxPacketSize0 = 0x0009 idVendor = 0x0000 idProduct = 0x0000 bcdDevice = 0x0100 iManufacturer = 0x0001 <Intel> iProduct = 0x0002 <XHCI root HUB> iSerialNumber = ... bNumConfigurations = 0x0001 Configuration index 0 bLength = 0x0009 bDescriptorType = 0x0002 wTotalLength = 0x001f bNumInterfaces = 0x0001 bConfigurationValue = 0x0001 iConfiguration = 0x0000 <no string> bmAttributes = 0x0040 bMaxPower = 0x0000 Interface 0 bLength = 0x0009 bDescriptorType = 0x0004 bInterfaceNumber = 0x0000 bAlternateSetting = 0x0000 bNumEndpoints = 0x0001 bInterfaceClass = 0x0009 <HUB> bInterfaceSubClass = 0x0000 bInterfaceProtocol = 0x0000 iInterface = 0x0000 <no string> Endpoint 0 bLength = 0x0007 bDescriptorType = 0x0005 bEndpointAddress = 0x0081 <IN> bmAttributes = 0x0003 <INTERRUPT> wMaxPacketSize = 0x0002 bInterval = 0x00ff bRefresh = 0x0000 bSynchAddress = 0x0000 Additional Descriptor bLength = 0x06 bDescriptorType = 0x30 bDescriptorSubType = 0x00 RAW dump: 0x00 | 0x06, 0x30, 0x00, 0x00, 0x00, 0x00