linux/sound/usb/power.c

// SPDX-License-Identifier: GPL-2.0
/*
 *   UAC3 Power Domain state management functions
 */

#include <linux/slab.h>
#include <linux/usb.h>
#include <linux/usb/audio.h>
#include <linux/usb/audio-v2.h>
#include <linux/usb/audio-v3.h>

#include "usbaudio.h"
#include "helper.h"
#include "power.h"

struct snd_usb_power_domain *
snd_usb_find_power_domain(struct usb_host_interface *ctrl_iface,
			  unsigned char id)
{ … }

int snd_usb_power_domain_set(struct snd_usb_audio *chip,
			     struct snd_usb_power_domain *pd,
			     unsigned char state)
{ … }