sound/soc/codecs/wm8731.h

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/wm8731.h

Extension

.h

Size

1297 bytes

Lines

64

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

• linux/mutex.h
• linux/regmap.h
• linux/regulator/consumer.h

Detected Declarations

• struct clk
• struct snd_pcm_hw_constraint_list
• struct wm8731_priv

Annotated Snippet

struct wm8731_priv {
	struct regmap *regmap;
	struct clk *mclk;
	struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES];
	const struct snd_pcm_hw_constraint_list *constraints;
	unsigned int sysclk;
	int sysclk_type;
	int playback_fs;
	bool deemph;

	struct mutex lock;
};

extern const struct regmap_config wm8731_regmap;

int wm8731_init(struct device *dev, struct wm8731_priv *wm8731);

#endif

Annotation

• Immediate include surface: `linux/mutex.h`, `linux/regmap.h`, `linux/regulator/consumer.h`.
• Detected declarations: `struct clk`, `struct snd_pcm_hw_constraint_list`, `struct wm8731_priv`.
• 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.