Parsing Interface Descriptor for device: 001/003
 iManufacturer: Gemplus
 iProduct: Dell USB Smartcard Keyboard
 bLength: 9
 bDescriptorType: 4
 bInterfaceNumber: 1
 bAlternateSetting: 0
 bNumEndpoints: 3
 bInterfaceClass: 0xFF
  NOT A CCID DEVICE
  Class is 0xFF (proprietary)
 bInterfaceSubClass: 92
  UNSUPPORTED SubClass
 bInterfaceProtocol: 0
 iInterface: 0
 CCID Class Descriptor
  bLength: 0x36
  bDescriptorType: 0xFF
   PROPRIETARY bDescriptorType
  bcdCCID: 1.00
  bMaxSlotIndex: 0x00
  bVoltageSupport: 0x03
   5.0V
   3.0V
  dwProtocols: 0x0000 0x0003
   T=0
   T=1
  dwDefaultClock: 4.000 MHz
  dwMaximumClock: 4.000 MHz
  bNumClockSupported: 0x00
  dwDataRate: 10752 bps
  dwMaxDataRate: 129032 bps
  bNumDataRatesSupported: 0
  dwMaxIFSD: 254
  dwSynchProtocols: 0x00000000
  dwMechanical: 0x00000000
   No special characteristics
  dwFeatures: 0x00010230
   Automatic ICC clock frequency change according to parameters
   Automatic baud rate change according to frequency and Fi, Di parameters
   NAD value other than 00 accepted (T=1)
   TPDU level exchange
  dwMaxCCIDMessageLength: 271 bytes
  bClassGetResponse: 0
  bClassEnveloppe: 0
  wLcdLayout: 0x0000
  bPINSupport: 0x01
   PIN Verification supported
  bMaxCCIDBusySlots: 1


The device is a USB composite: keyboard + smart card reader

Bus 001 Device 003: ID 413c:2100 Dell Computer Corp. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x413c Dell Computer Corp.
  idProduct          0x2100 
  bcdDevice            0.10
  iManufacturer           1 Gemplus
  iProduct                2 Dell USB Smartcard Keyboard
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength          118
    bNumInterfaces          2
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xa0
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Devices
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      1 Keyboard
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  bytes 8 once
        bInterval              24
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.00
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      65
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass     92 
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  bytes 64 once
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  bytes 64 once
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x84  EP 4 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0008  bytes 8 once
        bInterval              24

Bus 001 Device 001: ID 0000:0000  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x0000 
  idProduct          0x0000 
  bcdDevice            2.06
  iManufacturer           3 
  iProduct                2 
  iSerial                 1 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    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         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0002  bytes 2 twice
        bInterval             255
