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  * Copyright (c) OSGi Alliance (2000, 2011). All Rights Reserved.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.osgi.service.device;

Interface for identifying device services.

A service must implement this interface or use the Constants.DEVICE_CATEGORY registration property to indicate that it is a device. Any services implementing this interface or registered with the DEVICE_CATEGORY property will be discovered by the device manager.

Device services implementing this interface give the device manager the opportunity to indicate to the device that no drivers were found that could (further) refine it. In this case, the device manager calls the noDriverFound() method on the Device object.

Specialized device implementations will extend this interface by adding methods appropriate to their device category to it.

$Id: 40e60d46b721a8b94408fdb97844904acec60cdf $
See also:
public interface Device {
Return value from Driver.match(org.osgi.framework.ServiceReference) indicating that the driver cannot refine the device presented to it by the device manager. The value is zero.
	public static final int	MATCH_NONE	= 0;

Indicates to this Device object that the device manager has failed to attach any drivers to it.

If this Device object can be configured differently, the driver that registered this Device object may unregister it and register a different Device service instead.

	public void noDriverFound();
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