drivers/input/serio/serport.c

File Facts

System

Linux kernel

Corpus path

drivers/input/serio/serport.c

Extension

.c

Size

6709 bytes

Lines

299

Domain

Driver Families

Bucket

drivers/input

Inferred role

Driver Families: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Touches user memory; correctness depends on fault-safe copying and privilege boundary handling.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/uaccess.h
• linux/kernel.h
• linux/sched.h
• linux/slab.h
• linux/module.h
• linux/init.h
• linux/serio.h
• linux/tty.h
• linux/compat.h

Detected Declarations

• struct serport
• function serport_serio_write
• function serport_serio_open
• function serport_serio_close
• function serport_ldisc_open
• function serport_ldisc_close
• function serport_ldisc_receive
• function serport_ldisc_read
• function serport_set_type
• function serport_ldisc_ioctl
• function serport_ldisc_compat_ioctl
• function serport_ldisc_hangup
• function serport_ldisc_write_wakeup
• function serport_init
• function serport_exit
• module init serport_init

Annotated Snippet

module_init(serport_init);
module_exit(serport_exit);

Annotation

• Immediate include surface: `linux/uaccess.h`, `linux/kernel.h`, `linux/sched.h`, `linux/slab.h`, `linux/module.h`, `linux/init.h`, `linux/serio.h`, `linux/tty.h`.
• Detected declarations: `struct serport`, `function serport_serio_write`, `function serport_serio_open`, `function serport_serio_close`, `function serport_ldisc_open`, `function serport_ldisc_close`, `function serport_ldisc_receive`, `function serport_ldisc_read`, `function serport_set_type`, `function serport_ldisc_ioctl`.
• Atlas domain: Driver Families / drivers/input.
• Implementation status: integration implementation candidate.
• This snippet crosses the user/kernel memory boundary; validate fault handling and access checks before translating the pattern.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.