USBTrace : Class Decoding : Smart Card (CCID)

USB devices which belong to the Smart Card / CCID Device class can be monitored using the Smart Card Device class decoder (Plug-in dll). The decoder will capture, decode and display CCID class specific descriptors, requests and messages.

The following class specific requests are decoded:

• ABORT
• GET_CLOCK_FREQUENCIES
• GET_DATA_RATES

The following Bulk-OUT messages (Commands) are decoded:

• PC_to_RDR_IccPowerOn
• PC_to_RDR_IccPowerOff
• PC_to_RDR_GetSlotStatus
• PC_to_RDR_XfrBlock
• PC_to_RDR_GetParameters
• PC_to_RDR_ResetParameters
• PC_to_RDR_SetParameters
• PC_to_RDR_Escape
• PC_to_RDR_IccClock
• PC_to_RDR_T0APDU
• PC_to_RDR_Secure
• PC_to_RDR_Mechanical
• PC_to_RDR_Abort
• PC_to_RDR_SetDataRateAndClockFrequency

The following Bulk-IN messages (Responses) are decoded:

• RDR_to_PC_DataBlock
• RDR_to_PC_SlotStatus
• RDR_to_PC_Parameters
• RDR_to_PC_Escape
• RDR_to_PC_DataRateAndClockFrequency

The following Interrupt-IN messages (Notifications) are decoded:

• RDR_to_PC_NotifySlotChange
• RDR_to_PC_HardwareError

Image below shows a CCID request packet, decoded and displayed by USBTrace.