diff --git a/JNIdll/BDI.def b/JNIdll/BDI.def
index c9524f6..1807a89 100644
--- a/JNIdll/BDI.def
+++ b/JNIdll/BDI.def
@@ -46,7 +46,7 @@ EXPORTS
     BDI555_startFastDownload = _Z24BDI555_startFastDownloadi @45
     BDI332_isTargetInDebugMode = _Z26BDI332_isTargetInDebugModev @46
     BDI555_isTargetInDebugMode = _Z26BDI555_isTargetInDebugModev @47
-    BDI332_go = _Z9BDI332_gov @48
-    BDI555_go = _Z9BDI555_gov @49
-    createJVM = _Z9createJVMPc @50
-    
\ No newline at end of file
+    USB_Device_getMaxPacketSize = _Z27USB_Device_getMaxPacketSizev @48
+    BDI332_go = _Z9BDI332_gov @49
+    BDI555_go = _Z9BDI555_gov @50
+    createJVM = _Z9createJVMPc @51
diff --git a/JNIdll/BDI.dll b/JNIdll/BDI.dll
index 1ad07a8..16e1c18 100644
Binary files a/JNIdll/BDI.dll and b/JNIdll/BDI.dll differ
diff --git a/JNIdll/BDI_dll.cpp b/JNIdll/BDI_dll.cpp
index 8f041f8..f911df2 100644
--- a/JNIdll/BDI_dll.cpp
+++ b/JNIdll/BDI_dll.cpp
@@ -12,8 +12,8 @@
 
 // Classes
 #define USB_Device_Class "ch/ntb/mcdp/usb/USBDevice"
-#define BDI555_Class "ch/ntb/mcdp/bdi/MPC555"
-#define BDI332_Class "ch/ntb/mcdp/bdi/MC68332"
+#define BDI555_Class "ch/ntb/mcdp/bdi/blackbox/MPC555"
+#define BDI332_Class "ch/ntb/mcdp/bdi/blackbox/MC68332"
 #define Redirect_Class "ch/ntb/mcdp/utils/Redirect"
 #define Uart0_Class "ch/ntb/mcdp/uart/blackbox/Uart0"
 
@@ -35,7 +35,8 @@ int jvm_created = FALSE, jvm_classPtrs_done = FALSE, \
 // Java classes
 jclass cls_USB_Device, cls_BDI555, cls_BDI332, cls_Redirect, cls_Uart0;
 // USB_Device
-jmethodID mid_USB_Dev_open, mid_USB_Dev_close, mid_USB_Dev_reset;
+jmethodID mid_USB_Dev_open, mid_USB_Dev_close, mid_USB_Dev_reset, \
+mid_USB_Dev_getMaxPacketSize;
 // BDI555
 jmethodID mid_BDI555_break_, mid_BDI555_go, mid_BDI555_reset_target, \
 mid_BDI555_isFreezeAsserted, mid_BDI555_startFastDownload, mid_BDI555_fastDownload, \
@@ -269,6 +270,11 @@ EXPORT int createJVM(char *classpath)
 	        fprintf_flush(stderr, "Can't find USB_Device.reset\n");
 	        return FALSE;
 	    }
+	    mid_USB_Dev_getMaxPacketSize = env->GetStaticMethodID(cls_USB_Device, "getMaxPacketSize", "()I");
+	    if (mid_USB_Dev_getMaxPacketSize == 0) {
+	        fprintf_flush(stderr, "Can't find USB_Device.getMaxPacketSize\n");
+	        return FALSE;
+	    }
 	
 	    // BDI555
 	    mid_BDI555_break_ = env->GetStaticMethodID(cls_BDI555, "break_", "()V");
@@ -534,6 +540,11 @@ EXPORT void USB_Device_reset()
 	env->CallStaticVoidMethod(cls_USB_Device, mid_USB_Dev_reset);
 }
 
+EXPORT int USB_Device_getMaxPacketSize()
+{
+	return env->CallStaticIntMethod(cls_USB_Device, mid_USB_Dev_getMaxPacketSize);
+}
+
 /* BDI 555 methods
  * 
  * For documentation see the java doc.