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/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef CRAS_EMPTY_IO_H_
#define CRAS_EMPTY_IO_H_
#include "cras_types.h"
struct cras_iodev;
/* Initializes an empty iodev. Empty iodevs are used when there are no other
* iodevs available. They give the attached streams a temporary place to live
* until a new iodev becomes available.
* Args:
* direciton - input or output.
* node_type - the default node type.
* Returns:
* A pointer to the newly created iodev if successful, NULL otherwise.
*/
struct cras_iodev *empty_iodev_create(enum CRAS_STREAM_DIRECTION direction,
enum CRAS_NODE_TYPE node_type);
/* Destroys an empty_iodev created with empty_iodev_create. */
void empty_iodev_destroy(struct cras_iodev *iodev);
#endif /* CRAS_EMPTY_IO_H_ */
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