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urb.h

#ifndef __USBAUDIO_URB_H
#define __USBAUDIO_URB_H

void snd_usb_init_substream(struct snd_usb_stream *as,
                      int stream,
                      struct audioformat *fp);

int snd_usb_init_substream_urbs(struct snd_usb_substream *subs,
                        unsigned int period_bytes,
                        unsigned int rate,
                        unsigned int frame_bits);

void snd_usb_release_substream_urbs(struct snd_usb_substream *subs, int force);

int snd_usb_substream_prepare(struct snd_usb_substream *subs,
                        struct snd_pcm_runtime *runtime);

int snd_usb_substream_playback_trigger(struct snd_pcm_substream *substream, int cmd);
int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream, int cmd);

#endif /* __USBAUDIO_URB_H */

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