drivers/video/backlight/locomolcd.c

Source file repositories/reference/linux-study-clean/drivers/video/backlight/locomolcd.c

File Facts

System: Linux kernel
Corpus path: drivers/video/backlight/locomolcd.c
Extension: .c
Size: 5953 bytes
Lines: 240
Domain: Driver Families
Bucket: drivers/video
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.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/module.h
linux/init.h
linux/delay.h
linux/device.h
linux/interrupt.h
linux/backlight.h
asm/hardware/locomo.h
asm/irq.h
asm/mach/sharpsl_param.h
asm/mach-types.h
../../../arch/arm/mach-sa1100/generic.h

Detected Declarations

function locomolcd_on
function locomolcd_off
function locomolcd_power
function locomolcd_set_intensity
function locomolcd_get_intensity
function locomolcd_suspend
function locomolcd_resume
function locomolcd_probe
function locomolcd_remove
function locomolcd_init
function locomolcd_exit
module init locomolcd_init
export locomolcd_power

Annotated Snippet

module_init(locomolcd_init);
module_exit(locomolcd_exit);

MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>, Pavel Machek <pavel@ucw.cz>");
MODULE_DESCRIPTION("Collie LCD driver");
MODULE_LICENSE("GPL");

Annotation

Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/delay.h`, `linux/device.h`, `linux/interrupt.h`, `linux/backlight.h`, `asm/hardware/locomo.h`, `asm/irq.h`.
Detected declarations: `function locomolcd_on`, `function locomolcd_off`, `function locomolcd_power`, `function locomolcd_set_intensity`, `function locomolcd_get_intensity`, `function locomolcd_suspend`, `function locomolcd_resume`, `function locomolcd_probe`, `function locomolcd_remove`, `function locomolcd_init`.
Atlas domain: Driver Families / drivers/video.
Implementation status: integration implementation candidate.

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.