VASCO DIGIPASS 870, has pin-pad capabilities, and there is a card detected with given ATR and some descriptions. An ATR (Answer To Reset) identifies the type of a smart-card. The reader, has a unique ID,
reader_idmust be used in order to request functionalities for the EMV card. This must be done upon instantiation of the EMV container:
emvwill use the selected reader - identified by the
PIN retry status.