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v3.15
 1#ifndef __USBAUDIO_POWER_H
 2#define __USBAUDIO_POWER_H
 3
 4#ifdef CONFIG_PM
 5int snd_usb_autoresume(struct snd_usb_audio *chip);
 6void snd_usb_autosuspend(struct snd_usb_audio *chip);
 7#else
 8static inline int snd_usb_autoresume(struct snd_usb_audio *chip)
 9{
10	return 0;
11}
12static inline void snd_usb_autosuspend(struct snd_usb_audio *chip)
13{
14}
15#endif
16
17#endif /* __USBAUDIO_POWER_H */
v3.5.6
 1#ifndef __USBAUDIO_POWER_H
 2#define __USBAUDIO_POWER_H
 3
 4#ifdef CONFIG_PM
 5int snd_usb_autoresume(struct snd_usb_audio *chip);
 6void snd_usb_autosuspend(struct snd_usb_audio *chip);
 7#else
 8static inline int snd_usb_autoresume(struct snd_usb_audio *chip)
 9{
10	return 0;
11}
12static inline void snd_usb_autosuspend(struct snd_usb_audio *chip)
13{
14}
15#endif
16
17#endif /* __USBAUDIO_POWER_H */