Add PKCS provider library accessor

diff --git a/tdecore/tdehw/tdecryptographiccarddevice.cpp b/tdecore/tdehw/tdecryptographiccarddevice.cpp
index dd3c778..faa803f 100644
--- a/tdecore/tdehw/tdecryptographiccarddevice.cpp
+++ b/tdecore/tdehw/tdecryptographiccarddevice.cpp
@@ -821,5 +821,9 @@
 	return retcode;
 }
 
+TQString TDECryptographicCardDevice::pkcsProviderLibrary() {
+	return OPENSC_PKCS11_PROVIDER_LIBRARY;
+}
+
 #include "tdecryptographiccarddevice.moc"
 #include "tdecryptographiccarddevice_private.moc"
diff --git a/tdecore/tdehw/tdecryptographiccarddevice.h b/tdecore/tdehw/tdecryptographiccarddevice.h
index ba40079..4e6cafa 100644
--- a/tdecore/tdehw/tdecryptographiccarddevice.h
+++ b/tdecore/tdehw/tdecryptographiccarddevice.h
@@ -142,6 +142,11 @@
 		 */
 		static int createNewSecretRSAKeyFromCertificate(TQByteArray &plaintext, TQByteArray &ciphertext, X509* certificate);
 
+		/**
+		 * @return The built-in PKCS provider library file name, including the full path
+		 */
+		static TQString pkcsProviderLibrary();
+
 	public slots:
 		void cardStatusChanged(TQString status, TQString atr);
 		void workerRequestedPin(TQString prompt);