arch/x86/include/asm/kbdleds.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/kbdleds.h

Extension

.h

Size

454 bytes

Lines

19

Domain

Architecture Layer

Bucket

arch/x86

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

• asm/setup.h

Detected Declarations

• function kbd_defleds

Annotated Snippet

#ifndef _ASM_X86_KBDLEDS_H
#define _ASM_X86_KBDLEDS_H

/*
 * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on.
 * This seems a good reason to start with NumLock off. That's why on X86 we
 * ask the bios for the correct state.
 */

#include <asm/setup.h>

static inline int kbd_defleds(void)
{
	return boot_params.kbd_status & 0x20 ? (1 << VC_NUMLOCK) : 0;
}

#endif /* _ASM_X86_KBDLEDS_H */

Annotation

• Immediate include surface: `asm/setup.h`.
• Detected declarations: `function kbd_defleds`.
• Atlas domain: Architecture Layer / arch/x86.
• Implementation status: source 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.