idVendor: 0x20A0
  iManufacturer: Nitrokey
 idProduct: 0x42B2
  iProduct: Nitrokey 3
 bcdDevice: 0.02 (firmware release?)
 bLength: 9
 bDescriptorType: 4
 bInterfaceNumber: 0
 bAlternateSetting: 0
 bNumEndpoints: 2
  bulk-IN and bulk-OUT
 bInterfaceClass: 0x0B [Chip Card Interface Device Class (CCID)]
 bInterfaceSubClass: 0
 bInterfaceProtocol: 0
  bulk transfer, optional interrupt-IN (CCID)
 iInterface: CCID/ICCD Interface
 CCID Class Descriptor
  bLength: 0x36
  bDescriptorType: 0x21
  bcdCCID: 1.10
  bMaxSlotIndex: 0x00
  bVoltageSupport: 0x01
   5.0V
  dwProtocols: 0x0000 0x0002
   T=1
  dwDefaultClock: 3.580 MHz
  dwMaximumClock: 3.580 MHz
  bNumClockSupported: 0 (will use whatever is returned)
   Got 1 clock frequencies but was expecting 256
   Support 3580 kHz
  dwDataRate: 9600 bps
  dwMaxDataRate: 9600 bps
  bNumDataRatesSupported: 0 (will use whatever is returned)
   Support 9600 bps
  dwMaxIFSD: 254
  dwSynchProtocols: 0x00000000
  dwMechanical: 0x00000000
   No special characteristics
  dwFeatures: 0x00040840
   ....40 Automatic parameters negotiation made by the CCID
   ..08.. ICCD token
   04.... Short and Extended APDU level exchange
  dwMaxCCIDMessageLength: 3072 bytes
  bClassGetResponse: 0xFF
   echoes the APDU class
  bClassEnvelope: 0xFF
   echoes the APDU class
  wLcdLayout: 0x0000
  bPINSupport: 0x00
  bMaxCCIDBusySlots: 1