diff --git a/src/native/osx32/libnsp.dylib b/src/native/osx32/libnsp.dylib
index 3678898..32cfce6 100755
Binary files a/src/native/osx32/libnsp.dylib and b/src/native/osx32/libnsp.dylib differ
diff --git a/src/native/osx64/libnsp.dylib b/src/native/osx64/libnsp.dylib
index 3678898..32cfce6 100755
Binary files a/src/native/osx64/libnsp.dylib and b/src/native/osx64/libnsp.dylib differ
diff --git a/src/org/hwo/io/NewSerialPort/NewSerialPort.java b/src/org/hwo/io/NewSerialPort/NewSerialPort.java
index ef7cab8..24f81cb 100644
--- a/src/org/hwo/io/NewSerialPort/NewSerialPort.java
+++ b/src/org/hwo/io/NewSerialPort/NewSerialPort.java
@@ -297,6 +297,8 @@ public class NewSerialPort {
 			return getPortNamesLIN();
 		case WINDOWS:
 			return getPortNamesWIN();
+		case OSX:
+			return getPortNamesOSX();
 		default:
 			return new String[0];	
 		}
@@ -339,6 +341,26 @@ public class NewSerialPort {
 		
 		return portNames.toArray(new String[0]);		
 	}
+	static public String[] getPortNamesOSX()
+	{
+		ArrayList<String> portNames = new ArrayList<String>();
+		
+		File devDir = new File("/dev");
+		File[] list = devDir.listFiles(new FilenameFilter() {
+			
+			@Override
+			public boolean accept(File arg0, String arg1) {
+				if (arg1.startsWith("tty.") || arg1.startsWith("ttyS"))
+					return true;
+				return false;
+			}
+		});
+		
+		for (File file:list)
+			portNames.add("/dev/" + file.getName());
+		
+		return portNames.toArray(new String[0]);		
+	}
 	
 	
 }