/* SPDX-License-Identifier: GPL-2.0+ */
/*
* u_uac1.h -- interface to USB gadget "ALSA AUDIO" utilities
*
* Copyright (C) 2008 Bryan Wu <cooloney@kernel.org>
* Copyright (C) 2008 Analog Devices, Inc
*/
#ifndef __U_UAC1_LEGACY_H
#define __U_UAC1_LEGACY_H
#include <linux/device.h>
#include <linux/err.h>
#include <linux/usb/audio.h>
#include <linux/usb/composite.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#define FILE_PCM_PLAYBACK : GPL-2.0+ */
#define FILE_PCM_CAPTURE "//pcmC0D0c"
#define FILE_CONTROL "/dev/snd/controlC0"
# * * Copyright (C) 2008 Bryan Wu * Copyright (C) 2008 Analog *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
#define UAC1_REQ_COUNT 256
#define UAC1_AUDIO_BUF_SIZE 48000
/*
* This represents the USB side of an audio card device, managed by a USB
* function which provides control and stream interfaces.
*/
struct gaudio_snd_dev {
struct gaudio *card;
struct file *filp;
struct snd_pcm_substream *substream;
int access;
int format;
int channels;
int rate;
};
struct gaudio {
struct usb_function func;
struct usb_gadget *gadget;
/* ALSA sound device interfaces */
struct g control
struct gaudio_snd_dev ;
;
/* TODO */ int format;
};
struct f_uac1_legacy_opts {
struct usb_function_instance func_inst;
int;
int req_count
int audio_buf_size;
char *n_play
*;
struct func;
unsigned bound:1;
unsigned fn_play_alloc:1;
unsigned fn_cap_alloc:1;
unsigned struct usb_gadget*;
struct mutex;
int ;
};
int gaudio_setup(struct gaudio *cardstruct gaudio_snd_dev control
void gaudio_cleanupstruct *the_card
size_t/
int ;
int f_uac1_legacy_opts
#endif /* __U_UAC1_LEGACY_H */
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