drivers/mmc/core/bus.h

File Facts

System

Linux kernel

Corpus path

drivers/mmc/core/bus.h

Extension

.h

Size

1155 bytes

Lines

44

Domain

Driver Families

Bucket

drivers/mmc

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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 an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/device.h
• linux/sysfs.h

Detected Declarations

• struct mmc_host
• struct mmc_card
• struct mmc_driver

Annotated Snippet

struct device_driver drv;
	int (*probe)(struct mmc_card *card);
	void (*remove)(struct mmc_card *card);
	void (*shutdown)(struct mmc_card *card);
};

int mmc_register_driver(struct mmc_driver *drv);
void mmc_unregister_driver(struct mmc_driver *drv);

#endif

Annotation

• Immediate include surface: `linux/device.h`, `linux/sysfs.h`.
• Detected declarations: `struct mmc_host`, `struct mmc_card`, `struct mmc_driver`.
• Atlas domain: Driver Families / drivers/mmc.
• Implementation status: pattern 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.