diff --git a/java/src/ch/ntb/usb/testApp/AbstractDeviceInfo.java b/java/src/ch/ntb/usb/testApp/AbstractDeviceInfo.java
index bf503bf..94f7b7a 100644
--- a/java/src/ch/ntb/usb/testApp/AbstractDeviceInfo.java
+++ b/java/src/ch/ntb/usb/testApp/AbstractDeviceInfo.java
@@ -35,6 +35,8 @@ public abstract class AbstractDeviceInfo {
 
 	private TransferMode mode;
 
+	private boolean compareData = true;
+
 	public static enum TransferMode {
 		Bulk, Interrupt
 	}
@@ -149,4 +151,11 @@ public abstract class AbstractDeviceInfo {
 		this.mode = mode;
 	}
 
+	public boolean doCompareData() {
+		return compareData;
+	}
+
+	public void setDoCompareData(boolean compareData) {
+		this.compareData = compareData;
+	}
 }
diff --git a/java/test/ch/ntb/usb/test/DeviceTest.java b/java/test/ch/ntb/usb/test/DeviceTest.java
index cdecb88..57a4858 100644
--- a/java/test/ch/ntb/usb/test/DeviceTest.java
+++ b/java/test/ch/ntb/usb/test/DeviceTest.java
@@ -141,16 +141,32 @@ public class DeviceTest {
 
 	@Test
 	public void bulkWriteRead() throws Exception {
+		checkBulkEndpoints();
 		devinfo.setMode(TransferMode.Bulk);
 		doOpenWriteReadClose();
 	}
 
+	private void checkBulkEndpoints() {
+		if (devinfo.getInEPBulk() == -1 && devinfo.getOutEPBulk() == -1) {
+			throw new UnsupportedOperationException(
+					"no bulk endpoints defined in test device definition");
+		}
+	}
+
 	@Test
 	public void interruptWriteRead() throws Exception {
+		checkInterruptEndpoints();
 		devinfo.setMode(TransferMode.Interrupt);
 		doOpenWriteReadClose();
 	}
 
+	private void checkInterruptEndpoints() {
+		if (devinfo.getInEPInt() == -1 && devinfo.getOutEPInt() == -1) {
+			throw new UnsupportedOperationException(
+					"no interrupt endpoints defined in test device definition");
+		}
+	}
+
 	@Test
 	public void bulkWriteReadMultiple() throws Exception {
 		final int NumberOfIterations = 100;
@@ -451,24 +467,31 @@ public class DeviceTest {
 	private void doOpenWriteReadClose() throws Exception {
 		doOpen();
 		doWriteRead();
-		compare(testData, readData);
 		doClose();
 	}
 
 	private void doWriteRead() throws Exception {
 		initTestData();
 		if (devinfo.getMode().equals(TransferMode.Bulk)) {
-			dev.writeBulk(devinfo.getOutEPBulk(), testData, testData.length,
-					devinfo.getTimeout(), false);
-			dev.readBulk(devinfo.getInEPBulk(), readData, readData.length,
-					devinfo.getTimeout(), false);
+			if (devinfo.getOutEPBulk() != -1) {
+				dev.writeBulk(devinfo.getOutEPBulk(), testData,
+						testData.length, devinfo.getTimeout(), false);
+			} else if (devinfo.getInEPBulk() != -1) {
+				dev.readBulk(devinfo.getInEPBulk(), readData, readData.length,
+						devinfo.getTimeout(), false);
+			}
 		} else if (devinfo.getMode().equals(TransferMode.Interrupt)) {
-			dev.writeInterrupt(devinfo.getOutEPInt(), testData,
-					testData.length, devinfo.getTimeout(), false);
-			dev.readInterrupt(devinfo.getInEPInt(), readData, readData.length,
-					devinfo.getTimeout(), false);
+			if (devinfo.getOutEPInt() != -1) {
+				dev.writeInterrupt(devinfo.getOutEPInt(), testData,
+						testData.length, devinfo.getTimeout(), false);
+			} else if (devinfo.getInEPInt() != -1) {
+				dev.readInterrupt(devinfo.getInEPInt(), readData,
+						readData.length, devinfo.getTimeout(), false);
+			}
+		}
+		if (devinfo.doCompareData()) {
+			compare(testData, readData);
 		}
-		compare(testData, readData);
 	}
 
 	private static void compare(byte[] d1, byte[] d2) {
diff --git a/java/test/ch/ntb/usb/test/MX500.java b/java/test/ch/ntb/usb/test/MX500.java
new file mode 100644
index 0000000..a444d47
--- /dev/null
+++ b/java/test/ch/ntb/usb/test/MX500.java
@@ -0,0 +1,33 @@
+/* 
+ * Java libusb wrapper
+ * Copyright (c) 2005-2006 Andreas Schläpfer <spandi at users.sourceforge.net>
+ *
+ * http://libusbjava.sourceforge.net
+ * This library is covered by the LGPL, read LGPL.txt for details.
+ */
+package ch.ntb.usb.test;
+
+import ch.ntb.usb.USB;
+import ch.ntb.usb.testApp.AbstractDeviceInfo;
+
+public class MX500 extends AbstractDeviceInfo {
+
+	@Override
+	public void initValues() {
+		setIdVendor((short) 0x046d);
+		setIdProduct((short) 0xc025);
+		setTimeout(5000);
+		setConfiguration(1);
+		setInterface(0);
+		setAltinterface(0);
+		setOutEPInt(-1);
+		setInEPInt(0x81);
+		setOutEPBulk(-1);
+		setInEPBulk(-1);
+		setSleepTimeout(2000);
+		setMaxDataSize(USB.HIGHSPEED_MAX_BULK_PACKET_SIZE);
+		setMode(TransferMode.Interrupt);
+		// we only read data -> don't compare
+		setDoCompareData(false);
+	}
+}
diff --git a/java/test/ch/ntb/usb/test/TestLibUsbJava.java b/java/test/ch/ntb/usb/test/TestLibUsbJava.java
new file mode 100644
index 0000000..120bb3a
--- /dev/null
+++ b/java/test/ch/ntb/usb/test/TestLibUsbJava.java
@@ -0,0 +1,240 @@
+/* 
+ * Java libusb wrapper
+ * Copyright (c) 2005-2007 Andreas Schläpfer <spandi at users.sourceforge.net>
+ *
+ * http://libusbjava.sourceforge.net
+ * This library is covered by the LGPL, read LGPL.txt for details.
+ */
+package ch.ntb.usb.test;
+
+import ch.ntb.usb.LibusbJava;
+import ch.ntb.usb.Usb_Bus;
+import ch.ntb.usb.Usb_Config_Descriptor;
+import ch.ntb.usb.Usb_Device;
+import ch.ntb.usb.Usb_Endpoint_Descriptor;
+import ch.ntb.usb.Usb_Interface;
+import ch.ntb.usb.Usb_Interface_Descriptor;
+
+/**
+ * This class replicates the code from testlibusb.c supplied in the
+ * libusb-0.1.12 release.
+ */
+public class TestLibUsbJava {
+	static boolean verbose;
+
+	/**
+	 * prints out endpoint info
+	 * 
+	 * @param endpoint
+	 *            The end point.
+	 */
+	private static void printEndpoint(Usb_Endpoint_Descriptor endpoint) {
+		System.out.print(String.format("      bEndpointAddress: %02xh\n",
+				endpoint.getBEndpointAddress()));
+		System.out.print(String.format("      bmAttributes:     %02xh\n",
+				endpoint.getBmAttributes()));
+		System.out.print(String.format("      wMaxPacketSize:   %d\n", endpoint
+				.getWMaxPacketSize()));
+		System.out.print(String.format("      bInterval:        %d\n", endpoint
+				.getBInterval()));
+		System.out.print(String.format("      bRefresh:         %d\n", endpoint
+				.getBRefresh()));
+		System.out.print(String.format("      bSynchAddress:    %d\n", endpoint
+				.getBSynchAddress()));
+	}
+
+	/**
+	 * prints out the interface descriptor
+	 * 
+	 * @param interfaceDescript
+	 *            The interface descriptor.
+	 */
+	private static void printAltsetting(
+			Usb_Interface_Descriptor interfaceDescript) {
+		System.out.print(String.format("    bInterfaceNumber:   %d\n",
+				interfaceDescript.getBInterfaceNumber()));
+		System.out.print(String.format("    bAlternateSetting:  %d\n",
+				interfaceDescript.getBAlternateSetting()));
+		System.out.print(String.format("    bNumEndpoints:      %d\n",
+				interfaceDescript.getBNumEndpoints()));
+		System.out.print(String.format("    bInterfaceClass:    %d\n",
+				interfaceDescript.getBInterfaceClass()));
+		System.out.print(String.format("    bInterfaceSubClass: %d\n",
+				interfaceDescript.getBInterfaceSubClass()));
+		System.out.print(String.format("    bInterfaceProtocol: %d\n",
+				interfaceDescript.getBInterfaceProtocol()));
+		System.out.print(String.format("    iInterface:         %d\n",
+				interfaceDescript.getIInterface()));
+
+		for (int i = 0; i < interfaceDescript.getBNumEndpoints(); i++) {
+			printEndpoint(interfaceDescript.getEndpoint()[i]);
+		}
+	}
+
+	/**
+	 * prints out interface
+	 * 
+	 * @param usbInterface
+	 *            The interface.
+	 */
+	private static void printInterface(Usb_Interface usbInterface) {
+		for (int i = 0; i < usbInterface.getNumAltsetting(); i++) {
+			printAltsetting(usbInterface.getAltsetting()[i]);
+		}
+	}
+
+	/**
+	 * prints out configuration
+	 * 
+	 * @param config
+	 *            The configuration.
+	 */
+	private static void printConfiguration(Usb_Config_Descriptor config) {
+		System.out.print(String.format("  wTotalLength:         %d\n", config
+				.getWTotalLength()));
+		System.out.print(String.format("  bNumInterfaces:       %d\n", config
+				.getBNumInterfaces()));
+		System.out.print(String.format("  bConfigurationValue:  %d\n", config
+				.getBConfigurationValue()));
+		System.out.print(String.format("  iConfiguration:       %d\n", config
+				.getIConfiguration()));
+		System.out.print(String.format("  bmAttributes:         %02xh\n",
+				config.getBmAttributes()));
+		System.out.print(String.format("  MaxPower:             %d\n", config
+				.getMaxPower()));
+
+		for (int i = 0; i < config.getBNumInterfaces(); i++) {
+			printInterface(config.getInterface()[i]);
+		}
+	}
+
+	private static int printDevice(Usb_Device dev, int level) {
+		int udev;
+		String mfr;
+		String product;
+		String sn;
+		String spaces;
+		String descript;
+
+		spaces = "                                ";
+
+		udev = LibusbJava.usb_open(dev);
+
+		if (udev != 0) {
+			if (dev.getDescriptor().getIManufacturer() != 0) {
+				mfr = LibusbJava.usb_get_string_simple(udev, dev
+						.getDescriptor().getIManufacturer());
+
+				if (mfr != null) {
+					descript = String.format("%s - ", mfr);
+				} else {
+					descript = String.format("%04X - ", dev.getDescriptor()
+							.getIdVendor());
+				}
+			} else {
+				descript = String.format("%04X - ", dev.getDescriptor()
+						.getIdVendor());
+			}
+
+			if (dev.getDescriptor().getIProduct() != 0) {
+				product = LibusbJava.usb_get_string_simple(udev, dev
+						.getDescriptor().getIProduct());
+
+				if (product != null) {
+					descript = descript + String.format("%s", product);
+				} else {
+					descript = descript
+							+ String.format("%04X", dev.getDescriptor()
+									.getIdProduct());
+				}
+			} else {
+				descript = descript
+						+ String.format("%04X", dev.getDescriptor()
+								.getIdProduct());
+			}
+		} else {
+			descript = String.format("%04X - %04X", dev.getDescriptor()
+					.getIdVendor(), dev.getDescriptor().getIdProduct());
+		}
+
+		System.out.print(String.format("%sDev #%d: %s\n", spaces.substring(0,
+				level * 2), dev.getDevnum(), descript));
+
+		if ((udev != 0) && verbose) {
+			if (dev.getDescriptor().getISerialNumber() != 0) {
+				sn = LibusbJava.usb_get_string_simple(udev, dev.getDescriptor()
+						.getISerialNumber());
+
+				if (sn != null) {
+					System.out.print(String.format("%s  - Serial Number: %s\n",
+							spaces.substring(0, level * 2), sn));
+				}
+			}
+		}
+
+		if (udev != 0) {
+			LibusbJava.usb_close(udev);
+		}
+
+		if (verbose) {
+			if (dev.getConfig().length == 0) {
+				System.out.print("  Couldn't retrieve descriptors\n");
+
+				return 0;
+			}
+
+			for (int i = 0; i < dev.getDescriptor().getBNumConfigurations(); i++) {
+				printConfiguration(dev.getConfig()[i]);
+			}
+		} else {
+			Usb_Device childDev = null;
+
+			for (int i = 0; i < dev.getNumChildren(); i++) {
+				if (i == 0) {
+					childDev = dev.getChildren();
+				} else {
+					childDev = childDev.getNext();
+				}
+
+				printDevice(childDev, level + 1);
+			}
+		}
+
+		return 0;
+	} // end of printDevice method
+
+	/**
+	 * The main method.
+	 * 
+	 * @param args
+	 *            The command line arguments.
+	 */
+	public static void main(String args[]) throws Exception {
+		if ((args.length > 0) && (args[0].equals("-v"))) {
+			verbose = true;
+		} else {
+			verbose = false;
+		}
+
+		// used for debugging. 0 = no debugging.
+		//
+		LibusbJava.usb_set_debug(0);
+
+		LibusbJava.usb_init();
+
+		LibusbJava.usb_find_busses();
+		LibusbJava.usb_find_devices();
+
+		for (Usb_Bus bus = LibusbJava.usb_get_busses(); bus != null; bus = bus
+				.getNext()) {
+			if ((bus.getRootDev() != null) && !verbose) {
+				printDevice(bus.getRootDev(), 0);
+			} else {
+				for (Usb_Device dev = bus.getDevices(); dev != null; dev = dev
+						.getNext()) {
+					printDevice(dev, 0);
+				}
+			}
+		}
+	} // end main
+} // end of TestLibUsbJava class
diff --git a/java/testdevice.properties b/java/testdevice.properties
index 8ae9da0..c9ef350 100644
--- a/java/testdevice.properties
+++ b/java/testdevice.properties
@@ -4,6 +4,8 @@
 ################################################################
 
 # Atmel AVR AT90USB1287
-testdeviceInfo=ch.ntb.usb.test.AT90USB1287
+# testdeviceInfo=ch.ntb.usb.test.AT90USB1287
 # Cypress FX2 CY7C68013A
 # testdeviceInfo=ch.ntb.usb.test.CY7C68013A
+# MX500 Mouse
+testdeviceInfo=ch.ntb.usb.test.MX500