usbconfig -d ugen0.2 dump_all_desc
ugen0.2: <Quectel EP06-E> at usbus0, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=ON (500mA)

  bLength = 0x0012
  bDescriptorType = 0x0001
  bcdUSB = 0x0200
  bDeviceClass = 0x00ef  <Miscellaneous device>
  bDeviceSubClass = 0x0002
  bDeviceProtocol = 0x0001
  bMaxPacketSize0 = 0x0040
  idVendor = 0x2c7c
  idProduct = 0x0306
  bcdDevice = 0x0310
  iManufacturer = 0x0001  <Quectel>
  iProduct = 0x0002  <EP06-E>
  iSerialNumber = 0x0003  <0123456789ABCDEF>
  bNumConfigurations = 0x0001

 Configuration index 0

    bLength = 0x0009
    bDescriptorType = 0x0002
    wTotalLength = 0x0102
    bNumInterfaces = 0x0006
    bConfigurationValue = 0x0001
    iConfiguration = 0x0000  <no string>
    bmAttributes = 0x00a0
    bMaxPower = 0x00fa

    Interface 0
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0000
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0002
      bInterfaceClass = 0x00ff  <Vendor specific>
      bInterfaceSubClass = 0x00ff
      bInterfaceProtocol = 0x00ff
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 1
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0001  <OUT>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 1
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0003
      bInterfaceClass = 0x00ff  <Vendor specific>
      bInterfaceSubClass = 0x0000
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x00
       RAW dump:
       0x00 | 0x05, 0x24, 0x00, 0x10, 0x01


      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x05, 0x24, 0x01, 0x00, 0x00


      Additional Descriptor

      bLength = 0x04
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x04, 0x24, 0x02, 0x02


      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x05, 0x24, 0x06, 0x00, 0x00


     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0083  <IN>
        bmAttributes = 0x0003  <INTERRUPT>
        wMaxPacketSize = 0x000a
        bInterval = 0x0009
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 1
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0082  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 2
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0002  <OUT>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 2
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0002
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0003
      bInterfaceClass = 0x00ff  <Vendor specific>
      bInterfaceSubClass = 0x0000
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x00
       RAW dump:
       0x00 | 0x05, 0x24, 0x00, 0x10, 0x01


      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x05, 0x24, 0x01, 0x00, 0x00


      Additional Descriptor

      bLength = 0x04
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x04, 0x24, 0x02, 0x02


      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x05, 0x24, 0x06, 0x00, 0x00


     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0085  <IN>
        bmAttributes = 0x0003  <INTERRUPT>
        wMaxPacketSize = 0x000a
        bInterval = 0x0009
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 1
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0084  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 2
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0003  <OUT>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 3
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0003
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0003
      bInterfaceClass = 0x00ff  <Vendor specific>
      bInterfaceSubClass = 0x0000
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x00
       RAW dump:
       0x00 | 0x05, 0x24, 0x00, 0x10, 0x01


      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x05, 0x24, 0x01, 0x00, 0x00


      Additional Descriptor

      bLength = 0x04
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x04, 0x24, 0x02, 0x02


      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x05, 0x24, 0x06, 0x00, 0x00


     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0087  <IN>
        bmAttributes = 0x0003  <INTERRUPT>
        wMaxPacketSize = 0x000a
        bInterval = 0x0009
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 1
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0086  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 2
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0004  <OUT>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000

      Additional Descriptor

      bLength = 0x08
      bDescriptorType = 0x0b
      bDescriptorSubType = 0x04
       RAW dump:
       0x00 | 0x08, 0x0b, 0x04, 0x02, 0x02, 0x06, 0x00, 0x08



    Interface 4
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0004
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x0002  <Communication device>
      bInterfaceSubClass = 0x0006
      bInterfaceProtocol = 0x0000
      iInterface = 0x0005  <CDC Ethernet Control Model (ECM)>

      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x00
       RAW dump:
       0x00 | 0x05, 0x24, 0x00, 0x10, 0x01


      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x05, 0x24, 0x06, 0x04, 0x05


      Additional Descriptor

      bLength = 0x0d
      bDescriptorType = 0x24
      bDescriptorSubType = 0x0f
       RAW dump:
       0x00 | 0x0d, 0x24, 0x0f, 0x06, 0x00, 0x00, 0x00, 0x00,
       0x08 | 0xea, 0x05, 0x00, 0x00, 0x00


     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0089  <IN>
        bmAttributes = 0x0003  <INTERRUPT>
        wMaxPacketSize = 0x0010
        bInterval = 0x0009
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 5
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0005
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0000
      bInterfaceClass = 0x000a  <CDC-data>
      bInterfaceSubClass = 0x0000
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>


    Interface 5 Alt 1
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0005
      bAlternateSetting = 0x0001
      bNumEndpoints = 0x0002
      bInterfaceClass = 0x000a  <CDC-data>
      bInterfaceSubClass = 0x0000
      bInterfaceProtocol = 0x0000
      iInterface = 0x0007  <CDC Ethernet Data>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0088  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000

     Endpoint 1
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0005  <OUT>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0200
        bInterval = 0x0000
        bRefresh = 0x0000
        bSynchAddress = 0x0000