kernel: uaudio1: <vendor 0x1a86 USB2.0-MIDI, class 0/0, rev 1.10/2.54, addr 2> on usbus1
kernel: uaudio1: No playback.
kernel: uaudio1: No recording.
kernel: uaudio1: Single command MIDI quirk enabled
kernel: uaudio1: MIDI sequencer.
kernel: uaudio1: No HID volume keys found.
usb-attach: notify=ATTACH= USB.DEVICE ugen1.2 : cdev=ugen1.2 devclass=0x00 parent=ugen1.1 port=2 vendor=0x1a86 prod=0x752d 
usb-attach: notify=ATTACH= USB.INTERFACE ugen1.2 : cdev=ugen1.2 devclass=0x00 interface=0 intclass=0x01 intprotocol=0x00 intsubclass=0x01 vendor=0x1a86 prod=0x752d 
usb-attach: notify=ATTACH= USB.INTERFACE ugen1.2 : cdev=ugen1.2 devclass=0x00 interface=1 intclass=0x01 intprotocol=0x00 intsubclass=0x03 vendor=0x1a86 prod=0x752d 
usb-attach: notify=CREATE= DEVFS.CDEV umidi1.0 : cdev=umidi1.0 
usb-attach: notify=CREATE= DEVFS.CDEV umidi1.1 : cdev=umidi1.1 



ugen1.2: <USB2.0-MIDI vendor 0x1a86> at usbus1, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (96mA)
ugen1.2.0: uaudio1: <vendor 0x1a86 USB2.0-MIDI, class 0/0, rev 1.10/2.54, addr 2>

  bLength = 0x0012 
  bDescriptorType = 0x0001 
  bcdUSB = 0x0110 
  bDeviceClass = 0x0000  <Probed by interface class>
  bDeviceSubClass = 0x0000 
  bDeviceProtocol = 0x0000 
  bMaxPacketSize0 = 0x0008 
  idVendor = 0x1a86 
  idProduct = 0x752d 
  bcdDevice = 0x0254 
  iManufacturer = 0x0000  <no string>
  iProduct = 0x0002  <USB2.0-MIDI>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001 



 Configuration index 0

    bLength = 0x0009 
    bDescriptorType = 0x0002 
    wTotalLength = 0x0075 
    bNumInterfaces = 0x0002 
    bConfigurationValue = 0x0001 
    iConfiguration = 0x0000  <no string>
    bmAttributes = 0x0080 
    bMaxPower = 0x0030 

    Interface 0
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0000 
      bAlternateSetting = 0x0000 
      bNumEndpoints = 0x0000 
      bInterfaceClass = 0x0001  <Audio device>
      bInterfaceSubClass = 0x0001 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x09, 0x24, 0x01, 0x00, 0x01, 0x09, 0x00, 0x01, 
       0x08 | 0x01


    Interface 1
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0001 
      bAlternateSetting = 0x0000 
      bNumEndpoints = 0x0002 
      bInterfaceClass = 0x0001  <Audio device>
      bInterfaceSubClass = 0x0003 
      bInterfaceProtocol = 0x0000 
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x07, 0x24, 0x01, 0x00, 0x01, 0x51, 0x00


      Additional Descriptor

      bLength = 0x06
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x06, 0x24, 0x02, 0x01, 0x02, 0x00


      Additional Descriptor

      bLength = 0x06
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x06, 0x24, 0x02, 0x01, 0x03, 0x00


      Additional Descriptor

      bLength = 0x06
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump: 
       0x00 | 0x06, 0x24, 0x02, 0x02, 0x06, 0x00


      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x03
       RAW dump: 
       0x00 | 0x09, 0x24, 0x03, 0x01, 0x07, 0x01, 0x06, 0x01, 
       0x08 | 0x00

      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x03
       RAW dump: 
       0x00 | 0x09, 0x24, 0x03, 0x02, 0x04, 0x01, 0x02, 0x01, 
       0x08 | 0x00

      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x03
       RAW dump: 
       0x00 | 0x09, 0x24, 0x03, 0x02, 0x05, 0x01, 0x03, 0x01, 
       0x08 | 0x00

     Endpoint 0
        bLength = 0x0009 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0002  <OUT>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0020 
        bInterval = 0x0000 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 

      Additional Descriptor

      bLength = 0x06
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x06, 0x25, 0x01, 0x02, 0x02, 0x03


     Endpoint 1
        bLength = 0x0009 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0082  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0020 
        bInterval = 0x0000 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 

      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump: 
       0x00 | 0x05, 0x25, 0x01, 0x01, 0x07