[Pcsclite-cvs-commit] CVS Drivers/ccid/src

[CVS User rousseau]

Update of /cvsroot/pcsclite/Drivers/ccid/src
In directory haydn:/tmp/cvs-serv18231/src

Modified Files:
	ifdhandler.c 
Log Message:
extra_egt(): rewrite the function comment


--- /cvsroot/pcsclite/Drivers/ccid/src/ifdhandler.c	2005/04/26 12:16:26	1.65
+++ /cvsroot/pcsclite/Drivers/ccid/src/ifdhandler.c	2005/04/26 12:29:45	1.66
@@ -17,7 +17,7 @@
     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
 */
 
-/* $Id: ifdhandler.c,v 1.65 2005/04/26 12:16:26 rousseau Exp $ */
+/* $Id: ifdhandler.c,v 1.66 2005/04/26 12:29:45 rousseau Exp $ */
 
 #include <stdio.h>
 #include <string.h>
@@ -1016,13 +1016,16 @@
 
 void extra_egt(ATR_t *atr, _ccid_descriptor *ccid_desc, DWORD Protocol)
 {
-	/*
-	 * This function apply an extra EGT value for card who comply
-	 * with followings criterias.
-	 * If the extra EGT are not apply to the reader, the communication
-	 * with the smart card will be impossible.
-	 * It is a smart card bug wich are not compatible with ISO 7816-3 
-	 * standard.
+	/* This function use an EGT value for cards who comply with followings
+	 * criterias:
+	 * - TA1 > 11
+	 * - current EGT = 0x00 or 0xFF
+	 * - T=0 or (T=1 and CWI >= 2)
+	 *
+	 * Without this larger EGT some non ISO 7816-3 smart cards may not
+	 * communicate with the reader.
+	 *
+	 * This modification is harmless, the reader will just be less restrictive
 	 */
 
 	unsigned int card_baudrate;