Code example for UsbAccessory

            } 
            serializer.endTag(null, "usb-accessory");
        } 
 
        public boolean matches(UsbAccessory acc) {
            if (mManufacturer != null && !acc.getManufacturer().equals(mManufacturer)) return false;
            if (mModel != null && !acc.getModel().equals(mModel)) return false;
            if (mVersion != null && !acc.getVersion().equals(mVersion)) return false;
            return true; 
        } 
 
        public boolean matches(AccessoryFilter f) {
            if (mManufacturer != null && !f.mManufacturer.equals(mManufacturer)) return false;
            if (mModel != null && !f.mModel.equals(mModel)) return false;
            if (mVersion != null && !f.mVersion.equals(mVersion)) return false;
            return true; 
        } 
 
        @Override 
        public boolean equals(Object obj) {