 idVendor: 0x04D9
  iManufacturer: SCR
 idProduct: 0xC001
  iProduct: Prime
 bcdDevice: 2.00 (firmware release?)
 bLength: 9
 bDescriptorType: 4
 bInterfaceNumber: 1
 bAlternateSetting: 0
 bNumEndpoints: 3
  bulk-IN, bulk-OUT and Interrupt-IN
 bInterfaceClass: 0x0B [Chip Card Interface Device Class (CCID)]
 bInterfaceSubClass: 0
 bInterfaceProtocol: 0
  bulk transfer, optional interrupt-IN (CCID)
 Can't get iInterface string: LIBUSB_ERROR_INVALID_PARAM
 CCID Class Descriptor
  bLength: 0x36
  bDescriptorType: 0x21
  bcdCCID: 1.10
  bMaxSlotIndex: 0x00
  bVoltageSupport: 0x07
   5.0V
   3.0V
   1.8V
  dwProtocols: 0x0000 0x0003
   T=0
   T=1
  dwDefaultClock: 4.800 MHz
  dwMaximumClock: 4.800 MHz
  bNumClockSupported: 1
   Support 4800 kHz
  dwDataRate: 12903 bps
  dwMaxDataRate: 400000 bps
  bNumDataRatesSupported: 9
   Support 9600 bps
   Support 12903 bps
   Support 19200 bps
   Support 38400 bps
   Support 57600 bps
   Support 115200 bps
   Support 230400 bps
   Support 300000 bps
   Support 400000 bps
  dwMaxIFSD: 254
  dwSynchProtocols: 0x00000000
  dwMechanical: 0x00000000
   No special characteristics
  dwFeatures: 0x0002006A
   ....02 Automatic parameter configuration based on ATR data
   ....08 Automatic ICC voltage selection
   ....20 Automatic baud rate change according to frequency and Fi, Di params
   ....40 Automatic parameters negotiation made by the CCID
   02.... Short APDU level exchange
  dwMaxCCIDMessageLength: 2067 bytes
  bClassGetResponse: 0xFF
   echoes the APDU class
  bClassEnvelope: 0xFF
   echoes the APDU class
  wLcdLayout: 0x0000
  bPINSupport: 0x00
  bMaxCCIDBusySlots: 1
