Yosemite: OS X 10.10
Yosemite contains a rewrite of pcsc-lite. See "OS X Yosemite and smart cards status". The problem is that the rewrite introduced (many) bugs.Bug list
I will list known (by me) bugs and will try to maintain the list in the future if/when the bugs are fixed.- PC/SC functions crash after a fork(2)
- SCardDisconnect
Fixed in OS X 10.10.2
- SCardReconnect(..., SCARD_RESET_CARD, ...)
- SCardBeginTransaction() after a card reset
- SCardStatus() after a card reset
- SCardStatus returns SCARD_E_INSUFFICIENT_BUFFER
- SCARD_E_PROTO_MISMATCH not returned
- T=0 is used instead of T=1 on dual protocol cards
Fixed in OS X 10.10.3
[Update] Fixed in El Capitan 10.11.0
- SCardGetAttrib
- SCardTransmit (pioSendPci not checked)
- SCardGetStatusChange blocks forever
- OS X Yosemite bug: SCardConnect blocks in SCARD_SHARE_SHARED mode
Conclusion
I hope the bugs will be fixed during Yosemite lifetime. But I am afraid it will not happen before the next major version of OS X (OS X 10.11) is out.This reminds me when Mac OS X 10.5 Leopard has been released in 2007 with lots of important bugs like ATR corruption. At that time it was also a major deviation from pcsc-lite. See "Evolution of Apple pcsc-lite (from Jaguar to Mavericks)".
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