linux/sound/core/seq/oss/seq_oss_rw.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * OSS compatible sequencer driver
 *
 * read/write/select interface to device file
 *
 * Copyright (C) 1998,99 Takashi Iwai <[email protected]>
 */

#include "seq_oss_device.h"
#include "seq_oss_readq.h"
#include "seq_oss_writeq.h"
#include "seq_oss_synth.h"
#include <sound/seq_oss_legacy.h>
#include "seq_oss_event.h"
#include "seq_oss_timer.h"
#include "../seq_clientmgr.h"


/*
 * protoypes
 */
static int insert_queue(struct seq_oss_devinfo *dp, union evrec *rec, struct file *opt);


/*
 * read interface
 */

int
snd_seq_oss_read(struct seq_oss_devinfo *dp, char __user *buf, int count)
{ … }


/*
 * write interface
 */

int
snd_seq_oss_write(struct seq_oss_devinfo *dp, const char __user *buf, int count, struct file *opt)
{ … }


/*
 * insert event record to write queue
 * return: 0 = OK, non-zero = NG
 */
static int
insert_queue(struct seq_oss_devinfo *dp, union evrec *rec, struct file *opt)
{ … }
		

/*
 * select / poll
 */
  
__poll_t
snd_seq_oss_poll(struct seq_oss_devinfo *dp, struct file *file, poll_table * wait)
{ … }