linux/samples/kfifo/dma-example.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Sample fifo dma implementation
 *
 * Copyright (C) 2010 Stefani Seibold <[email protected]>
 */

#include <linux/init.h>
#include <linux/kfifo.h>
#include <linux/module.h>
#include <linux/scatterlist.h>

/*
 * This module shows how to handle fifo dma operations.
 */

/* fifo size in elements (bytes) */
#define FIFO_SIZE …

static struct kfifo fifo;

static int __init example_init(void)
{ … }

static void __exit example_exit(void)
{ … }

module_init(example_init);
module_exit(example_exit);
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;
MODULE_AUTHOR(…) …;