Comment 25 for bug 1074783

Bus 002 Device 004: ID 19a8:2036 Biforst Technology Inc.
Device Descriptor:
  bLength 18
  bDescriptorType 1
  bcdUSB 1.10
  bDeviceClass 0 (Defined at Interface level)
  bDeviceSubClass 0
  bDeviceProtocol 0
  bMaxPacketSize0 64
  idVendor 0x19a8 Biforst Technology Inc.
  idProduct 0x2036
  bcdDevice 1.00
  iManufacturer 0
  iProduct 2
  iSerial 0
  bNumConfigurations 1
  Configuration Descriptor:
    bLength 9
    bDescriptorType 2
    wTotalLength 138
    bNumInterfaces 3
    bConfigurationValue 1
    iConfiguration 0
    bmAttributes 0x80
      (Bus Powered)
    MaxPower 500mA
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 0
      bAlternateSetting 0
      bNumEndpoints 1
      bInterfaceClass 3 Human Interface Device
      bInterfaceSubClass 0 No Subclass
      bInterfaceProtocol 0 None
      iInterface 0
        HID Device Descriptor:
          bLength 9
          bDescriptorType 33
          bcdHID 1.00
          bCountryCode 0 Not supported
          bNumDescriptors 1
          bDescriptorType 34 Report
          wDescriptorLength 35
         Report Descriptors:
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength 7
        bDescriptorType 5
        bEndpointAddress 0x81 EP 1 IN
        bmAttributes 3
          Transfer Type Interrupt
          Synch Type None
          Usage Type Data
        wMaxPacketSize 0x0002 1x 2 bytes
        bInterval 16
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 1
      bAlternateSetting 0
      bNumEndpoints 0
      bInterfaceClass 1 Audio
      bInterfaceSubClass 1 Control Device
      bInterfaceProtocol 0
      iInterface 0
      AudioControl Interface Descriptor:
        bLength 9
        bDescriptorType 36
        bDescriptorSubtype 1 (HEADER)
        bcdADC 1.00
        wTotalLength 43
        bInCollection 1
        baInterfaceNr( 0) 2
      AudioControl Interface Descriptor:
        bLength 12
        bDescriptorType 36
        bDescriptorSubtype 2 (INPUT_TERMINAL)
        bTerminalID 1
        wTerminalType 0x0101 USB Streaming
        bAssocTerminal 0
        bNrChannels 2
        wChannelConfig 0x0003
          Left Front (L)
          Right Front (R)
        iChannelNames 0
        iTerminal 0
      AudioControl Interface Descriptor:
        bLength 13
        bDescriptorType 36
        bDescriptorSubtype 6 (FEATURE_UNIT)
        bUnitID 2
        bSourceID 1
        bControlSize 2
        bmaControls( 0) 0x01
        bmaControls( 0) 0x00
          Mute Control
        bmaControls( 1) 0x02
        bmaControls( 1) 0x00
          Volume Control
        bmaControls( 2) 0x02
        bmaControls( 2) 0x00
          Volume Control
        iFeature 0
      AudioControl Interface Descriptor:
        bLength 9
        bDescriptorType 36
        bDescriptorSubtype 3 (OUTPUT_TERMINAL)
        bTerminalID 3
        wTerminalType 0x0304 Desktop Speaker
        bAssocTerminal 0
        bSourceID 2
        iTerminal 0
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 2
      bAlternateSetting 0
      bNumEndpoints 0
      bInterfaceClass 1 Audio
      bInterfaceSubClass 2 Streaming
      bInterfaceProtocol 0
      iInterface 0
    Interface Descriptor:
      bLength 9
      bDescriptorType 4
      bInterfaceNumber 2
      bAlternateSetting 1
      bNumEndpoints 1
      bInterfaceClass 1 Audio
      bInterfaceSubClass 2 Streaming
      bInterfaceProtocol 0
      iInterface 0
      AudioStreaming Interface Descriptor:
        bLength 7
        bDescriptorType 36
        bDescriptorSubtype 1 (AS_GENERAL)
        bTerminalLink 1
        bDelay 1 frames
        wFormatTag 1 PCM
      AudioStreaming Interface Descriptor:
        bLength 11
        bDescriptorType 36
        bDescriptorSubtype 2 (FORMAT_TYPE)
        bFormatType 1 (FORMAT_TYPE_I)
        bNrChannels 2
        bSubframeSize 2
        bBitResolution 16
        bSamFreqType 1 Discrete
        tSamFreq[ 0] 46875
      Endpoint Descriptor:
        bLength 9
        bDescriptorType 5
        bEndpointAddress 0x02 EP 2 OUT
        bmAttributes 9
          Transfer Type Isochronous
          Synch Type Adaptive
          Usage Type Data
        wMaxPacketSize 0x00c0 1x 192 bytes
        bInterval 1
        bRefresh 0
        bSynchAddress 0
        AudioControl Endpoint Descriptor:
          bLength 7
          bDescriptorType 37
          bDescriptorSubtype 1 (EP_GENERAL)
          bmAttributes 0x01
            Sampling Frequency
          bLockDelayUnits 0 Undefined
          wLockDelay 0 Undefined