linux-libre/sound/usb/clock.h

#ifndef __USBAUDIO_CLOCK_H
#define __USBAUDIO_CLOCK_H

int snd_usb_init_sample_rate(struct snd_usb_audio *chip, int iface,
			     struct usb_host_interface *alts,
			     struct audioformat *fmt, int rate);

int snd_usb_clock_find_source(struct snd_usb_audio *chip, int entity_id,
			     bool validate);

#endif /* __USBAUDIO_CLOCK_H */