sound/soc/codecs/cs4341.c

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/cs4341.c

Extension

.c

Size

8873 bytes

Lines

353

Domain

Driver Families

Bucket

sound/soc

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/i2c.h
• linux/module.h
• linux/of.h
• linux/regmap.h
• linux/spi/spi.h
• sound/pcm.h
• sound/pcm_params.h
• sound/soc.h
• sound/tlv.h

Detected Declarations

• struct cs4341_priv
• function cs4341_set_fmt
• function cs4341_hw_params
• function cs4341_mute
• function cs4341_probe
• function cs4341_i2c_probe
• function cs4341_reg_readable
• function cs4341_spi_probe
• function cs4341_init
• function cs4341_exit
• module init cs4341_init

Annotated Snippet

module_init(cs4341_init);

static void __exit cs4341_exit(void)
{
#if IS_ENABLED(CONFIG_I2C)
	i2c_del_driver(&cs4341_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
	spi_unregister_driver(&cs4341_spi_driver);
#endif
}
module_exit(cs4341_exit);

MODULE_AUTHOR("Alexander Shiyan <shc_work@mail.ru>");
MODULE_DESCRIPTION("Cirrus Logic CS4341 ALSA SoC Codec Driver");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `linux/i2c.h`, `linux/module.h`, `linux/of.h`, `linux/regmap.h`, `linux/spi/spi.h`, `sound/pcm.h`, `sound/pcm_params.h`, `sound/soc.h`.
• Detected declarations: `struct cs4341_priv`, `function cs4341_set_fmt`, `function cs4341_hw_params`, `function cs4341_mute`, `function cs4341_probe`, `function cs4341_i2c_probe`, `function cs4341_reg_readable`, `function cs4341_spi_probe`, `function cs4341_init`, `function cs4341_exit`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: integration 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.