include/uapi/linux/can/j1939.h

File Facts

System

Linux kernel

Corpus path

include/uapi/linux/can/j1939.h

Extension

.h

Size

2413 bytes

Lines

109

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/types.h
• linux/socket.h
• linux/can.h

Detected Declarations

• struct j1939_filter

Annotated Snippet

struct j1939_filter {
	name_t name;
	name_t name_mask;
	pgn_t pgn;
	pgn_t pgn_mask;
	__u8 addr;
	__u8 addr_mask;
};

#define J1939_FILTER_MAX 512 /* maximum number of j1939_filter set via setsockopt() */

#endif /* !_UAPI_CAN_J1939_H_ */

Annotation

• Immediate include surface: `linux/types.h`, `linux/socket.h`, `linux/can.h`.
• Detected declarations: `struct j1939_filter`.
• 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.