include/sound/sdca_ump.h

File Facts

System

Linux kernel

Corpus path

include/sound/sdca_ump.h

Extension

.h

Size

1635 bytes

Lines

51

Domain

Driver Families

Bucket

include/sound

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

• No C-style include directives detected by the generator.

Detected Declarations

• struct regmap
• struct sdca_control
• struct sdca_entity
• struct sdca_function_data
• struct snd_soc_component
• struct delayed_work

Annotated Snippet

#ifndef __SDCA_UMP_H__
#define __SDCA_UMP_H__

struct regmap;
struct sdca_control;
struct sdca_entity;
struct sdca_function_data;
struct snd_soc_component;
struct delayed_work;

int sdca_ump_get_owner_host(struct device *dev,
			    struct regmap *function_regmap,
			    struct sdca_function_data *function,
			    struct sdca_entity *entity,
			    struct sdca_control *control);
int sdca_ump_set_owner_device(struct device *dev,
			      struct regmap *function_regmap,
			      struct sdca_function_data *function,
			      struct sdca_entity *entity,
			      struct sdca_control *control);
int sdca_ump_read_message(struct device *dev,
			  struct regmap *device_regmap,
			  struct regmap *function_regmap,
			  struct sdca_function_data *function,
			  struct sdca_entity *entity,
			  unsigned int offset_sel, unsigned int length_sel,
			  void **msg);
int sdca_ump_write_message(struct device *dev,
			   struct regmap *device_regmap,
			   struct regmap *function_regmap,
			   struct sdca_function_data *function,
			   struct sdca_entity *entity,
			   unsigned int offset_sel, unsigned int msg_offset,
			   unsigned int length_sel,
			   void *msg, int msg_len);

void sdca_ump_cancel_timeout(struct delayed_work *work);
void sdca_ump_schedule_timeout(struct delayed_work *work,
			       unsigned int timeout_us);

#endif // __SDCA_UMP_H__

Annotation

• Detected declarations: `struct regmap`, `struct sdca_control`, `struct sdca_entity`, `struct sdca_function_data`, `struct snd_soc_component`, `struct delayed_work`.
• Atlas domain: Driver Families / include/sound.
• 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.