drivers/input/misc/sparcspkr.c

File Facts

System

Linux kernel

Corpus path

drivers/input/misc/sparcspkr.c

Extension

.c

Size

7868 bytes

Lines

353

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.
• 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/kernel.h
• linux/module.h
• linux/init.h
• linux/input.h
• linux/of.h
• linux/platform_device.h
• linux/slab.h
• asm/io.h

Detected Declarations

• struct grover_beep_info
• struct bbc_beep_info
• struct sparcspkr_state
• function bbc_count_to_reg
• function bbc_spkr_event
• function grover_spkr_event
• function sparcspkr_probe
• function sparcspkr_shutdown
• function bbc_beep_probe
• function bbc_remove
• function grover_beep_probe
• function grover_remove
• function sparcspkr_init
• function sparcspkr_exit
• module init sparcspkr_init

Annotated Snippet

module_init(sparcspkr_init);
module_exit(sparcspkr_exit);

Annotation

• Immediate include surface: `linux/kernel.h`, `linux/module.h`, `linux/init.h`, `linux/input.h`, `linux/of.h`, `linux/platform_device.h`, `linux/slab.h`, `asm/io.h`.
• Detected declarations: `struct grover_beep_info`, `struct bbc_beep_info`, `struct sparcspkr_state`, `function bbc_count_to_reg`, `function bbc_spkr_event`, `function grover_spkr_event`, `function sparcspkr_probe`, `function sparcspkr_shutdown`, `function bbc_beep_probe`, `function bbc_remove`.
• 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.

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.