[Pcsclite-muscle] Portable way to detect when a smart card is inserted

[Bruno Jesus]

On Mon, Sep 15, 2014 at 9:18 AM, Ignacio Casal
<ignacio.casal at nice-software.com> wrote:
>
> Hey guys,
>
> do you know what is the proper way to detect when a smart card is inserted?
> ...
>
> As you can see I need to do the call twice, first to get the current state and second to actually block to wait for the smart card to be inserted. Is this second way the recommended way also on pcsclite? If yes is the first version shown here in this mail some kind of shortcut for the 2 way call?
> Is there a better way to check when a smart card is inserted?

The easiest and less elegant way is to use only SCardConnect in a loop
(with a delay like 200ms) until it returns OK. It may not look
beautiful but works anywhere.

Some may argue that in a shared environment with multiple smart card
software running this would not work because one of the programs could
lock the card. In this case SCardConnect will return
SCARD_E_SHARING_VIOLATION so you still know there is a card.

> Thanks in advance.
>
> --
> Ignacio Casal Quinteiro


Best regards,
Bruno