diff -up ./src/ccid_ifdhandler.h.maxreaders ./src/ccid_ifdhandler.h
--- ./src/ccid_ifdhandler.h.maxreaders	2015-07-06 16:01:10.922054803 -0700
+++ ./src/ccid_ifdhandler.h	2015-07-06 16:01:17.811926253 -0700
@@ -51,7 +51,7 @@ extern int DriverOptions;
  * The maximum number of readers is also limited in pcsc-lite (16 by default)
  * see the definition of PCSCLITE_MAX_READERS_CONTEXTS in src/PCSC/pcsclite.h
  */
-#define CCID_DRIVER_MAX_READERS 16
+#define CCID_DRIVER_MAX_READERS 32
 
 /*
  * CCID driver specific functions