|  | /* SPDX-License-Identifier: GPL-2.0 */ | 
|  | #ifndef __USBAUDIO_PCM_H | 
|  | #define __USBAUDIO_PCM_H | 
|  |  | 
|  | snd_pcm_uframes_t snd_usb_pcm_delay(struct snd_usb_substream *subs, | 
|  | unsigned int rate); | 
|  |  | 
|  | void snd_usb_set_pcm_ops(struct snd_pcm *pcm, int stream); | 
|  | int snd_usb_pcm_suspend(struct snd_usb_stream *as); | 
|  | int snd_usb_pcm_resume(struct snd_usb_stream *as); | 
|  |  | 
|  | int snd_usb_init_pitch(struct snd_usb_audio *chip, int iface, | 
|  | struct usb_host_interface *alts, | 
|  | struct audioformat *fmt); | 
|  | void snd_usb_preallocate_buffer(struct snd_usb_substream *subs); | 
|  |  | 
|  |  | 
|  | #endif /* __USBAUDIO_PCM_H */ |