sound/soc/tegra/tegra_pcm.h

File Facts

System

Linux kernel

Corpus path

sound/soc/tegra/tegra_pcm.h

Extension

.h

Size

1384 bytes

Lines

42

Domain

Driver Families

Bucket

sound/soc

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• sound/dmaengine_pcm.h
• sound/asound.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __TEGRA_PCM_H__
#define __TEGRA_PCM_H__

#include <sound/dmaengine_pcm.h>
#include <sound/asound.h>

int tegra_pcm_new(struct snd_soc_component *component,
		  struct snd_soc_pcm_runtime *rtd);
int tegra_pcm_open(struct snd_soc_component *component,
		   struct snd_pcm_substream *substream);
int tegra_pcm_close(struct snd_soc_component *component,
		    struct snd_pcm_substream *substream);
int tegra_pcm_hw_params(struct snd_soc_component *component,
			struct snd_pcm_substream *substream,
			struct snd_pcm_hw_params *params);
snd_pcm_uframes_t tegra_pcm_pointer(struct snd_soc_component *component,
				    struct snd_pcm_substream *substream);
int tegra_pcm_platform_register(struct device *dev);
int devm_tegra_pcm_platform_register(struct device *dev);
int tegra_pcm_platform_register_with_chan_names(struct device *dev,
				struct snd_dmaengine_pcm_config *config,
				char *txdmachan, char *rxdmachan);
void tegra_pcm_platform_unregister(struct device *dev);

#endif

Annotation

• Immediate include surface: `sound/dmaengine_pcm.h`, `sound/asound.h`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.