idVendor: 0x04E6 iManufacturer: SCM Microsystems Inc. idProduct: 0x5115 iProduct: SCR33x USB Smart Card Reader bcdDevice: 5.23 (firmware release?) bLength: 9 bDescriptorType: 4 bInterfaceNumber: 0 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 iInterface: 4 CCID Class Descriptor bLength: 0x36 bDescriptorType: 0x21 bcdCCID: 1.10 bMaxSlotIndex: 0x00 bVoltageSupport: 0x01 5.0V dwProtocols: 0x0000 0x0003 T=0 T=1 dwDefaultClock: 4.000 MHz dwMaximumClock: 8.000 MHz bNumClockSupported: 0 (will use whatever is returned) IFD does not support GET CLOCK FREQUENCIES request: Broken pipe dwDataRate: 10753 bps dwMaxDataRate: 344105 bps bNumDataRatesSupported: 0 (will use whatever is returned) IFD does not support GET_DATA_RATES request: Broken pipe dwMaxIFSD: 252 dwSynchProtocols: 0x00000000 dwMechanical: 0x00000000 No special characteristics dwFeatures: 0x000100BA ....02 Automatic parameter configuration based on ATR data ....08 Automatic ICC voltage selection ....10 Automatic ICC clock frequency change according to parameters ....20 Automatic baud rate change according to frequency and Fi, Di params ....80 Automatic PPS made by the CCID 01.... TPDU level exchange dwMaxCCIDMessageLength: 271 bytes bClassGetResponse: 0xFF echoes the APDU class bClassEnveloppe: 0xFF echoes the APDU class wLcdLayout: 0x0000 bPINSupport: 0x00 bMaxCCIDBusySlots: 1