include/linux/rtc/m48t59.h

File Facts

System

Linux kernel

Corpus path

include/linux/rtc/m48t59.h

Extension

.h

Size

1826 bytes

Lines

65

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

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

Detected Declarations

• struct m48t59_plat_data

Annotated Snippet

struct m48t59_plat_data {
	/* The method to access M48T59 registers */
	void (*write_byte)(struct device *dev, u32 ofs, u8 val);
	unsigned char (*read_byte)(struct device *dev, u32 ofs);

	int type; /* RTC model */

	/* ioaddr mapped externally */
	void __iomem *ioaddr;
	/* offset to RTC registers, automatically set according to the type */
	unsigned int offset;

	/* YY digits (in RTC) are offset, i.e. year is 1900 + yy_offset + YY */
	int yy_offset;
};

#endif /* _LINUX_RTC_M48T59_H_ */

Annotation

• Detected declarations: `struct m48t59_plat_data`.
• 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.