arch/um/drivers/port.h

File Facts

System

Linux kernel

Corpus path

arch/um/drivers/port.h

Extension

.h

Size

507 bytes

Lines

21

Domain

Architecture Layer

Bucket

arch/um

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

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

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __PORT_H__
#define __PORT_H__

extern void *port_data(int port);
extern int port_wait(void *data);
extern void port_kern_close(void *d);
extern int port_connection(int fd, int *socket_out, int *pid_out);
extern int port_listen_fd(int port);
extern void port_read(int fd, void *data);
extern void port_kern_free(void *d);
extern int port_rcv_fd(int fd);
extern void port_remove_dev(void *d);

#endif

Annotation

• Atlas domain: Architecture Layer / arch/um.
• 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.