diff --git a/src/ATBAPP/ATBDeviceControllerPlugin.cpp b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
index d604f99..7f7e733 100644
--- a/src/ATBAPP/ATBDeviceControllerPlugin.cpp
+++ b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
@@ -29,7 +29,6 @@ ATBDeviceControllerPlugin::ATBDeviceControllerPlugin(QObject *parent) : QObject(
     connect(dynamic_cast<QObject*>(hw), SIGNAL(hwapi_payStopByEscrow()),  this, SLOT(onCashPayStopByEscrow()));
     connect(dynamic_cast<QObject*>(hw), SIGNAL(hwapi_payStopByError()),   this, SLOT(onCashPayStopByError()));
     connect(dynamic_cast<QObject*>(hw), SIGNAL(hwapi_payStopByTimeout()), this, SLOT(onCashPayStopByTimeout()));
-
 }
 
 ATBDeviceControllerPlugin::~ATBDeviceControllerPlugin() {}
@@ -341,6 +340,13 @@ void ATBDeviceControllerPlugin::onCashPayStoped()
 }
 
 
+
+/**
+ * Load CashAgentLib
+ * @brief ATBDeviceControllerPlugin::private_loadCashAgentLib
+ * @param pluginName
+ * @return
+ */
 bool ATBDeviceControllerPlugin::private_loadCashAgentLib(QString pluginName)
 {
     if (pluginName == "") {