drivers/input/serio/gscps2.c

File Facts

System

Linux kernel

Corpus path

drivers/input/serio/gscps2.c

Extension

.c

Size

11775 bytes

Lines

480

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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/init.h
• linux/module.h
• linux/slab.h
• linux/serio.h
• linux/input.h
• linux/interrupt.h
• linux/spinlock.h
• linux/delay.h
• linux/ioport.h
• asm/irq.h
• asm/io.h
• asm/parisc-device.h

Detected Declarations

• struct gscps2port
• function wait_TBE
• function gscps2_flush
• function gscps2_writeb_output
• function gscps2_enable
• function gscps2_reset
• function gscps2_read_data
• function gscps2_report_data
• function gscps2_interrupt
• function list_for_each_entry
• function gscps2_write
• function gscps2_open
• function gscps2_close
• function gscps2_probe
• function gscps2_remove
• function gscps2_init
• function gscps2_exit
• module init gscps2_init

Annotated Snippet

module_init(gscps2_init);
module_exit(gscps2_exit);

Annotation

• Immediate include surface: `linux/init.h`, `linux/module.h`, `linux/slab.h`, `linux/serio.h`, `linux/input.h`, `linux/interrupt.h`, `linux/spinlock.h`, `linux/delay.h`.
• Detected declarations: `struct gscps2port`, `function wait_TBE`, `function gscps2_flush`, `function gscps2_writeb_output`, `function gscps2_enable`, `function gscps2_reset`, `function gscps2_read_data`, `function gscps2_report_data`, `function gscps2_interrupt`, `function list_for_each_entry`.
• Atlas domain: Driver Families / drivers/input.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• 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.