drivers/input/serio/pcips2.c

File Facts

System

Linux kernel

Corpus path

drivers/input/serio/pcips2.c

Extension

.c

Size

4657 bytes

Lines

218

Domain

Driver Families

Bucket

drivers/input

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/module.h
• linux/interrupt.h
• linux/ioport.h
• linux/input.h
• linux/pci.h
• linux/slab.h
• linux/serio.h
• linux/delay.h
• asm/io.h

Detected Declarations

• struct pcips2_data
• function pcips2_write
• function pcips2_interrupt
• function pcips2_flush_input
• function pcips2_open
• function pcips2_close
• function pcips2_probe
• function pcips2_remove

Annotated Snippet

static struct pci_driver pcips2_driver = {
	.name			= "pcips2",
	.id_table		= pcips2_ids,
	.probe			= pcips2_probe,
	.remove			= pcips2_remove,
};

module_pci_driver(pcips2_driver);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
MODULE_DESCRIPTION("PCI PS/2 keyboard/mouse driver");

Annotation

• Immediate include surface: `linux/module.h`, `linux/interrupt.h`, `linux/ioport.h`, `linux/input.h`, `linux/pci.h`, `linux/slab.h`, `linux/serio.h`, `linux/delay.h`.
• Detected declarations: `struct pcips2_data`, `function pcips2_write`, `function pcips2_interrupt`, `function pcips2_flush_input`, `function pcips2_open`, `function pcips2_close`, `function pcips2_probe`, `function pcips2_remove`.
• Atlas domain: Driver Families / drivers/input.
• Implementation status: pattern 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.