drivers/mmc/core/sd.h

File Facts

System

Linux kernel

Corpus path

drivers/mmc/core/sd.h

Extension

.h

Size

638 bytes

Lines

23

Domain

Driver Families

Bucket

drivers/mmc

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/types.h

Detected Declarations

• struct mmc_host
• struct mmc_card

Annotated Snippet

#ifndef _MMC_CORE_SD_H
#define _MMC_CORE_SD_H

#include <linux/types.h>

extern const struct device_type sd_type;

struct mmc_host;
struct mmc_card;

int mmc_sd_get_cid(struct mmc_host *host, u32 ocr, u32 *cid, u32 *rocr);
int mmc_sd_get_csd(struct mmc_card *card, bool is_sduc);
int mmc_decode_scr(struct mmc_card *card);
int mmc_sd_get_ro(struct mmc_host *host);
void mmc_decode_cid(struct mmc_card *card);
int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
	bool reinit);
unsigned mmc_sd_get_max_clock(struct mmc_card *card);
int mmc_sd_switch_hs(struct mmc_card *card);

#endif

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct mmc_host`, `struct mmc_card`.
• Atlas domain: Driver Families / drivers/mmc.
• 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.