include/linux/eeprom_93cx6.h

File Facts

System

Linux kernel

Corpus path

include/linux/eeprom_93cx6.h

Extension

.h

Size

2649 bytes

Lines

85

Domain

Core OS

Bucket

Core Kernel Interface

Inferred role

Core OS: implementation source

Status

source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

• Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/bits.h

Detected Declarations

• struct eeprom_93cx6
• function has_quirk_extra_read_cycle

Annotated Snippet

struct eeprom_93cx6 {
	void *data;

	void (*register_read)(struct eeprom_93cx6 *eeprom);
	void (*register_write)(struct eeprom_93cx6 *eeprom);

	int width;
	unsigned int quirks;
/* Some EEPROMs require an extra clock cycle before reading */
#define PCI_EEPROM_QUIRK_EXTRA_READ_CYCLE	BIT(0)

	char drive_data;
	char reg_data_in;
	char reg_data_out;
	char reg_data_clock;
	char reg_chip_select;
};

extern void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom,
	const u8 word, u16 *data);
extern void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom,
	const u8 word, __le16 *data, const u16 words);
extern void eeprom_93cx6_readb(struct eeprom_93cx6 *eeprom,
	const u8 byte, u8 *data);
extern void eeprom_93cx6_multireadb(struct eeprom_93cx6 *eeprom,
	const u8 byte, u8 *data, const u16 bytes);

extern void eeprom_93cx6_wren(struct eeprom_93cx6 *eeprom, bool enable);

extern void eeprom_93cx6_write(struct eeprom_93cx6 *eeprom,
			       u8 addr, u16 data);

static inline bool has_quirk_extra_read_cycle(struct eeprom_93cx6 *eeprom)
{
	return eeprom->quirks & PCI_EEPROM_QUIRK_EXTRA_READ_CYCLE;
}

Annotation

• Immediate include surface: `linux/bits.h`.
• Detected declarations: `struct eeprom_93cx6`, `function has_quirk_extra_read_cycle`.
• Atlas domain: Core OS / Core Kernel Interface.
• 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.