Re: [Pyscard-users] obtain "warm" ATR

[Ludovic R. <lud...@gm...>]

2013/1/11 Andris Berzins <pk...@in...>:
> Hello,

Hi,

> I am using this code to obtain ATR:
> channel = CardRequest(timeout=100, cardType=AnyCardType()).waitforcard().connection
> channel.connect(CardConnection.T0_protocol)
> print channel.getATR()
>
>
> But this always returns "cold" ATR. How is it possible to obtain "warm" ATR?

You have two options:
- use SCardReconnect() [1] with SCARD_RESET_CARD but that is not
available at the pyscard higher level API
- use channel.connect(disposition=SCARD_RESET_CARD). On the second
channel.connect() you should get the warm ATR

Bye

[1] http://pcsclite.alioth.debian.org/api/group__API.html#gad5d4393ca8c470112ad9468c44ed8940

-- 
 Dr. Ludovic Rousseau