Documentation/ABI/testing/sysfs-driver-amd-sfh

File Facts

System

Linux kernel

Corpus path

Documentation/ABI/testing/sysfs-driver-amd-sfh

Extension

[no extension]

Size

478 bytes

Lines

14

Domain

Support Tooling And Documentation

Bucket

Documentation

Inferred role

Support Tooling And Documentation: Documentation

Status

atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

• Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

What:		/sys/bus/pci/drivers/pcie_mp2_amd/*/hpd
Date:		April 2025
Contact:	mario.limonciello@amd.com
Description:
		Human presence detection (HPD) enable/disable.
		When HPD is enabled, the device will be able to detect the
		presence of a human and will send an interrupt that can be
		used to wake the system from a low power state.
		When HPD is disabled, the device will not be able to detect
		the presence of a human.

		Access: Read/Write
		Valid values: enabled/disabled

Annotation

• Atlas domain: Support Tooling And Documentation / Documentation.
• Implementation status: atlas-only.

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.