30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __USBAUDIO_PCM_H
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#define __USBAUDIO_PCM_H
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void snd_usb_set_pcm_ops(struct snd_pcm *pcm, int stream);
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int snd_usb_pcm_suspend(struct snd_usb_stream *as);
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int snd_usb_pcm_resume(struct snd_usb_stream *as);
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bool snd_usb_pcm_has_fixed_rate(struct snd_usb_substream *as);
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int snd_usb_init_pitch(struct snd_usb_audio *chip,
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const struct audioformat *fmt);
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void snd_usb_preallocate_buffer(struct snd_usb_substream *subs);
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int snd_usb_audioformat_set_sync_ep(struct snd_usb_audio *chip,
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struct audioformat *fmt);
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const struct audioformat *
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snd_usb_find_format(struct list_head *fmt_list_head, snd_pcm_format_t format,
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unsigned int rate, unsigned int channels, bool strict_match,
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struct snd_usb_substream *subs);
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const struct audioformat *
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snd_usb_find_substream_format(struct snd_usb_substream *subs,
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const struct snd_pcm_hw_params *params);
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int snd_usb_hw_params(struct snd_usb_substream *subs,
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struct snd_pcm_hw_params *hw_params);
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int snd_usb_hw_free(struct snd_usb_substream *subs);
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#endif /* __USBAUDIO_PCM_H */
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