sound/pci/oxygen/xonar_dg.h

File Facts

System

Linux kernel

Corpus path

sound/pci/oxygen/xonar_dg.h

Extension

.h

Size

1623 bytes

Lines

58

Domain

Driver Families

Bucket

sound/pci

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

• oxygen.h

Detected Declarations

• struct dg
• enum cs4245_shadow_operation

Annotated Snippet

struct dg {
	/* shadow copy of the CS4245 register space */
	unsigned char cs4245_shadow[17];
	/* output select: headphone/speakers */
	unsigned char output_sel;
	/* volumes for all capture sources */
	char input_vol[4][2];
	/* input select: mic/fp mic/line/aux */
	unsigned char input_sel;
};

/* Xonar DG control routines */
int cs4245_write_spi(struct oxygen *chip, u8 reg);
int cs4245_read_spi(struct oxygen *chip, u8 reg);
int cs4245_shadow_control(struct oxygen *chip, enum cs4245_shadow_operation op);
void dg_init(struct oxygen *chip);
void set_cs4245_dac_params(struct oxygen *chip,
				  struct snd_pcm_hw_params *params);
void set_cs4245_adc_params(struct oxygen *chip,
				  struct snd_pcm_hw_params *params);
unsigned int adjust_dg_dac_routing(struct oxygen *chip,
					  unsigned int play_routing);
void dump_cs4245_registers(struct oxygen *chip,
				struct snd_info_buffer *buffer);
void dg_suspend(struct oxygen *chip);
void dg_resume(struct oxygen *chip);
void dg_cleanup(struct oxygen *chip);

extern const struct oxygen_model model_xonar_dg;

#endif

Annotation

• Immediate include surface: `oxygen.h`.
• Detected declarations: `struct dg`, `enum cs4245_shadow_operation`.
• Atlas domain: Driver Families / sound/pci.
• 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.