The problem

Proposed solution

Code sample

#! /usr/bin/env python

from smartcard.System import readers
from smartcard.pcsc.PCSCPart10 import (getFeatureRequest, hasFeature,
    getTlvProperties, FEATURE_CCID_ESC_COMMAND)

# use the first reader
card_connection = readers()[0].createConnection()
card_connection.connect()

# get CCID Escape control code
feature_list = getFeatureRequest(card_connection)

ccid_esc_command = hasFeature(feature_list, FEATURE_CCID_ESC_COMMAND)
if ccid_esc_command is None:
    raise Exception("The reader does not support FEATURE_CCID_ESC_COMMAND")

# get the TLV PROPERTIES
tlv = getTlvProperties(card_connection)

# check we are using a Xiring Leo reader
if tlv['PCSCv2_PART10_PROPERTY_idVendor'] == 0x0F14 \
    and tlv['PCSCv2_PART10_PROPERTY_idProduct'] == 0x0037:

    # proprietary commands for Xiring readers
    version = [ord(c) for c in "VERSION"]
    res = card_connection.control(ccid_esc_command, version)
    print res
    print ''.join([chr(x) for x in res])
else:
    print "Xiring Leo reader not found"

[86, 69, 82, 32, 32, 80, 75, 48, 50, 46, 49, 49, 0]
VER  PK02.11

Xiring Leo reader not found

Questions & Answers