Friday, December 3, 2010

New version of pcsc-lite: 1.6.5

I just released new version of pcsc-lite. Some of the improvements or changes have already been described in previous blog articles.


pcsc-lite-1.6.5: Ludovic Rousseau
3 December 2010
  • Power on the card _only_ if an application requests a connection. You can disable the feature using DISABLE_ON_DEMAND_POWER_ON in src/ If DISABLE_AUTO_POWER_ON is defined then do not automatically power on the card. The card will be powered on on the first SCardConnect() See
  • SCardReconnect(): return SCARD_E_NO_SMARTCARD when card is removed and SCARD_W_UNRESPONSIVE_CARD when card is unresponsive instead of SCARD_E_PROTO_MISMATCH
  • Install pcscd as sgid pcscd instead of suid root See
  • SCardSetTimeout() is no more provided. This function is not provided by Microsoft and is deprecated since 2004 in pcsc-lite.
  • SCardCancelTransaction() is no more provided. This function is not provided by Microsoft and is deprecated since 2005 in pcsc-lite.
  • Parsing the CCID Info.plist (159 readers supported) was, on a i386 machine, done in 264306 s and is now done 5547 s => gain x47 or 4600% See
  • It is now possible to configure the local socket name to use using the environment variable PCSCLITE_CSOCK_NAME See
  • Wait until all connected readers have a chance to power up a possibly inserted card before accepting clients.
  • restrict pcscd features when not run by root (so using suid): APDU logging or setting parameters are disabled for example
  • fix compilation problem on kfreebsd-* systems
  • PCSC/reader.h: HOST_TO_CCID_16() and HOST_TO_CCID_32() are now identity functions Since libccid 1.4.1 (revision 5252) the byte order is no more important
  • If you want to use IFDHCreateChannel() instead of IFDHCreateChannelByName() then do not use any DEVICENAME line in the configuration file. IFDHCreateChannel() will then be called with the CHANNELID parameter.
  • the CHANNELID parameter can also be a decimal number.
  • Remove the support of IFDHandler v1 API. I don't know any driver using this API. See
  • avoids a buffer overflow with badly formed ATR
  • some other minor improvements and bug corrections
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