drivers/leds/trigger/ledtrig-input-events.c

File Facts

System

Linux kernel

Corpus path

drivers/leds/trigger/ledtrig-input-events.c

Extension

.c

Size

3981 bytes

Lines

166

Domain

Driver Families

Bucket

drivers/leds

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/input.h
• linux/jiffies.h
• linux/leds.h
• linux/module.h
• linux/moduleparam.h
• linux/slab.h
• linux/spinlock.h
• linux/workqueue.h
• ../leds.h

Detected Declarations

• function led_input_events_work
• function time_after_eq
• function input_events_event
• function input_events_connect
• function input_events_disconnect
• function input_events_init
• function input_events_exit
• module init input_events_init

Annotated Snippet

module_init(input_events_init);
module_exit(input_events_exit);

MODULE_AUTHOR("Hans de Goede <hansg@kernel.org>");
MODULE_DESCRIPTION("Input Events LED trigger");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ledtrig:input-events");

Annotation

• Immediate include surface: `linux/input.h`, `linux/jiffies.h`, `linux/leds.h`, `linux/module.h`, `linux/moduleparam.h`, `linux/slab.h`, `linux/spinlock.h`, `linux/workqueue.h`.
• Detected declarations: `function led_input_events_work`, `function time_after_eq`, `function input_events_event`, `function input_events_connect`, `function input_events_disconnect`, `function input_events_init`, `function input_events_exit`, `module init input_events_init`.
• Atlas domain: Driver Families / drivers/leds.
• 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.