drivers/leds/leds-apu.c
Source file repositories/reference/linux-study-clean/drivers/leds/leds-apu.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/leds/leds-apu.c- Extension
.c- Size
- 6306 bytes
- Lines
- 222
- 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/dmi.hlinux/err.hlinux/init.hlinux/io.hlinux/kernel.hlinux/leds.hlinux/module.hlinux/platform_device.h
Detected Declarations
struct apu_paramstruct apu_led_privstruct apu_led_profilestruct apu_led_pdatafunction apu1_led_brightness_setfunction apu_led_configfunction apu_led_probefunction apu_led_initfunction apu_led_exitmodule init apu_led_init
Annotated Snippet
module_init(apu_led_init);
module_exit(apu_led_exit);
MODULE_AUTHOR("Alan Mizrahi");
MODULE_DESCRIPTION("PC Engines APU1 front LED driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:leds_apu");Annotation
- Immediate include surface: `linux/dmi.h`, `linux/err.h`, `linux/init.h`, `linux/io.h`, `linux/kernel.h`, `linux/leds.h`, `linux/module.h`, `linux/platform_device.h`.
- Detected declarations: `struct apu_param`, `struct apu_led_priv`, `struct apu_led_profile`, `struct apu_led_pdata`, `function apu1_led_brightness_set`, `function apu_led_config`, `function apu_led_probe`, `function apu_led_init`, `function apu_led_exit`, `module init apu_led_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.