include/linux/serial.h

File Facts

System

Linux kernel

Corpus path

include/linux/serial.h

Extension

.h

Size

1056 bytes

Lines

49

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.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• uapi/linux/serial.h
• uapi/linux/serial_reg.h
• linux/compiler.h

Detected Declarations

• struct async_icount
• function Copyright

Annotated Snippet

struct async_icount {
	__u32	cts, dsr, rng, dcd, tx, rx;
	__u32	frame, parity, overrun, brk;
	__u32	buf_overrun;
};

#include <linux/compiler.h>

#endif /* _LINUX_SERIAL_H */

Annotation

• Immediate include surface: `uapi/linux/serial.h`, `uapi/linux/serial_reg.h`, `linux/compiler.h`.
• Detected declarations: `struct async_icount`, `function Copyright`.
• Atlas domain: Core OS / Core Kernel Interface.
• Implementation status: source implementation candidate.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.