include/linux/spi/ds1305.h

File Facts

System

Linux kernel

Corpus path

include/linux/spi/ds1305.h

Extension

.h

Size

1107 bytes

Lines

37

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 ds1305_platform_data

Annotated Snippet

struct ds1305_platform_data {

	/* Trickle charge configuration:  it's OK to leave out the MAGIC
	 * bitmask; mask in either DS1 or DS2, and then one of 2K/4k/8K.
	 */
#define DS1305_TRICKLE_MAGIC	0xa0
#define DS1305_TRICKLE_DS2	0x08	/* two diodes */
#define DS1305_TRICKLE_DS1	0x04	/* one diode */
#define DS1305_TRICKLE_2K	0x01	/* 2 KOhm resistance */
#define DS1305_TRICKLE_4K	0x02	/* 4 KOhm resistance */
#define DS1305_TRICKLE_8K	0x03	/* 8 KOhm resistance */
	u8	trickle;

	/* set only on ds1306 parts */
	bool	is_ds1306;

	/* ds1306 only:  enable 1 Hz output */
	bool	en_1hz;

	/* REVISIT:  the driver currently expects nINT0 to be wired
	 * as the alarm IRQ.  ALM1 may also need to be set up ...
	 */
};

#endif /* __LINUX_SPI_DS1305_H */

Annotation

• Detected declarations: `struct ds1305_platform_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.