Fix sign-extension of short/byte arguments when passing to libusb, which expects int (???).

Update Linux 64bit build to new code and support glibc >=2.14.

src/main/c/src/LibUsb.c

@@ -1420,13 +1420,13 @@ static int LIBUSB_CALL hotplugCallback(libusb_context *context,
 }
 
 /**
- * int hotplugRegisterCallbackNative(Context, int, int, short, short, byte,
+ * int hotplugRegisterCallbackNative(Context, int, int, int, int, int,
  *     HotplugCallbackHandle, long)
  */
 JNIEXPORT jint JNICALL METHOD_NAME(LibUsb, hotplugRegisterCallbackNative)
 (
     JNIEnv *env, jclass class, jobject context, jint events, jint flags,
-    jshort vendorId, jshort productId, jbyte deviceClass,
+    jint vendorId, jint productId, jint deviceClass,
     jobject callbackHandle, jlong hotplugId
 )
 {

src/main/java/de/ailis/usb4java/libusb/LibUsb.java

@@ -2621,9 +2621,10 @@ public final class LibUsb
             throw new IllegalArgumentException("callback must not be null");
         }
 
+        // Mask the values for conversion to int in libusb API.
         final int result = hotplugRegisterCallbackNative(context, events,
-            flags, vendorId, productId, deviceClass, callbackHandle,
-            globalHotplugId);
+            flags, (vendorId & 0xFFFF), (productId & 0xFFFF),
+            (deviceClass & 0xFF), callbackHandle, globalHotplugId);
 
         if (result == LibUsb.SUCCESS)
         {
@@ -2638,8 +2639,8 @@ public final class LibUsb
     }
 
     static native int hotplugRegisterCallbackNative(final Context context,
-        final int events, final int flags, final short vendorId,
-        final short productId, final byte deviceClass,
+        final int events, final int flags, final int vendorId,
+        final int productId, final int deviceClass,
         final HotplugCallbackHandle callbackHandle, final long hotplugId);
 
     /**