drivers/parisc/led.c

File Facts

System

Linux kernel

Corpus path

drivers/parisc/led.c

Extension

.c

Size

14255 bytes

Lines

552

Domain

Driver Families

Bucket

drivers/parisc

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.
• 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/module.h
• linux/init.h
• linux/types.h
• linux/ioport.h
• linux/utsname.h
• linux/capability.h
• linux/delay.h
• linux/reboot.h
• linux/uaccess.h
• linux/leds.h
• linux/platform_device.h
• asm/io.h
• asm/processor.h
• asm/hardware.h
• asm/param.h
• asm/led.h
• asm/pdc.h

Detected Declarations

• struct lcd_block
• struct pdc_chassis_lcd_info_ret_block
• struct hppa_led
• struct led_type
• struct hppa_drvdata
• function lcd_print_now
• function lcd_print
• function led_ASP_driver
• function led_LASI_driver
• function led_LCD_driver
• function lcd_system_halt
• function set_led
• function hppa_led_generic_probe
• function platform_led_remove
• function platform_led_probe
• function register_led_driver
• function early_led_init
• function register_led_regions
• function startup_leds
• module init startup_leds

Annotated Snippet

device_initcall(startup_leds);

Annotation

• Immediate include surface: `linux/module.h`, `linux/init.h`, `linux/types.h`, `linux/ioport.h`, `linux/utsname.h`, `linux/capability.h`, `linux/delay.h`, `linux/reboot.h`.
• Detected declarations: `struct lcd_block`, `struct pdc_chassis_lcd_info_ret_block`, `struct hppa_led`, `struct led_type`, `struct hppa_drvdata`, `function lcd_print_now`, `function lcd_print`, `function led_ASP_driver`, `function led_LASI_driver`, `function led_LCD_driver`.
• Atlas domain: Driver Families / drivers/parisc.
• 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.