Bus 001 Device 004: ID 05ac:9213 Apple Computer, Inc. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x05ac Apple Computer, Inc.
  idProduct          0x9213 
  bcdDevice            6.49
  iManufacturer           0 
  iProduct                4 Studio Display
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength         8704
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x40
      Self Powered
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Devices
      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     197
          Report Descriptor: (length is 197)
            Item(Global): Usage Page, data= [ 0x80 ] 128
                            USB Monitor
            Item(Local ): Usage, data= [ 0x01 ] 1
                            Monitor Control
            Item(Main  ): Collection, data= [ 0x01 ] 1
                            Application
            Item(Global): Logical Minimum, data= [ 0x00 ] 0
            Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255
            Item(Global): Report Size, data= [ 0x08 ] 8
            Item(Global): Report ID, data= [ 0x02 ] 2
            Item(Global): Report Count, data= [ 0x80 ] 128
            Item(Local ): Usage, data= [ 0x02 ] 2
                            EDID Information
            Item(Main  ): Feature, data= [ 0x02 0x01 ] 258
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Buffered Bytes
            Item(Global): Usage Page, data= [ 0x82 ] 130
                            Monitor VESA Virtual Controls
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Global): Logical Maximum, data= [ 0x02 ] 2
            Item(Global): Report ID, data= [ 0xb0 ] 176
            Item(Local ): Usage, data= [ 0xb0 ] 176
                            Settings
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Logical Maximum, data= [ 0x04 ] 4
            Item(Global): Report ID, data= [ 0xd6 ] 214
            Item(Local ): Usage, data= [ 0xd6 ] 214
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x01 ] 1
            Item(Local ): Usage, data= [ 0x01 ] 1
                            Degauss
            Item(Global): Logical Maximum, data= [ 0x01 ] 1
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xae ] 174
            Item(Global): Logical Maximum, data= [ 0xff 0xff 0x00 0x00 ] 65535
            Item(Global): Report Size, data= [ 0x10 ] 16
            Item(Local ): Usage, data= [ 0xae ] 174
                            Vertical Frequency in 0.1 Hz
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report Size, data= [ 0x08 ] 8
            Item(Global): Report Count, data= [ 0x02 ] 2
            Item(Global): Logical Maximum, data= [ 0x60 ] 96
            Item(Global): Report ID, data= [ 0x12 ] 18
            Item(Local ): Usage, data= [ 0x12 ] 18
                            Contrast
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x20 ] 32
            Item(Local ): Usage, data= [ 0x20 ] 32
                            Horizontal Position
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x22 ] 34
            Item(Local ): Usage, data= [ 0x22 ] 34
                            Horizontal Size
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x24 ] 36
            Item(Local ): Usage, data= [ 0x24 ] 36
                            Horizontal Pincushion
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x30 ] 48
            Item(Local ): Usage, data= [ 0x30 ] 48
                            Vertical Position
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x32 ] 50
            Item(Local ): Usage, data= [ 0x32 ] 50
                            Vertical Size
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x40 ] 64
            Item(Local ): Usage, data= [ 0x40 ] 64
                            Parallelogram Balance (Key Distortion)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x42 ] 66
            Item(Local ): Usage, data= [ 0x42 ] 66
                            Trapezoidal Distortion (Key)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Logical Maximum, data= [ 0xff 0x00 ] 255
            Item(Global): Report ID, data= [ 0x44 ] 68
            Item(Local ): Usage, data= [ 0x44 ] 68
                            Tilt (Rotation)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x28 ] 40
            Item(Local ): Usage, data= [ 0x28 ] 40
                            Horizontal Misconvergence
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0x38 ] 56
            Item(Local ): Usage, data= [ 0x38 ] 56
                            Vertical Misconvergence
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xf0 ] 240
            Item(Local ): Usage, data= [ 0xf0 ] 240
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xf2 ] 242
            Item(Local ): Usage, data= [ 0xf2 ] 242
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xf4 ] 244
            Item(Local ): Usage, data= [ 0xf4 ] 244
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xf6 ] 246
            Item(Local ): Usage, data= [ 0xf6 ] 246
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xf8 ] 248
            Item(Local ): Usage, data= [ 0xf8 ] 248
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xfa ] 250
            Item(Local ): Usage, data= [ 0xfa ] 250
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xe0 ] 224
            Item(Local ): Usage, data= [ 0xe0 ] 224
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Report ID, data= [ 0xe2 ] 226
            Item(Local ): Usage, data= [ 0xe2 ] 226
                            (null)
            Item(Main  ): Feature, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Global): Logical Maximum, data= [ 0x0a ] 10
            Item(Global): Report ID, data= [ 0xe4 ] 228
            Item(Local ): Usage, data= [ 0xe4 ] 228
                            (null)
            Item(Global): Report Count, data= [ 0x01 ] 1
            Item(Main  ): Input, data= [ 0x02 ] 2
                            Data Variable Absolute No_Wrap Linear
                            Preferred_State No_Null_Position Non_Volatile Bitfield
            Item(Main  ): End Collection, data=none
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  1x 8 bytes
        bInterval             255
