Documentation/ABI/testing/sysfs-class-wakeup

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-class-wakeup

File Facts

System: Linux kernel
Corpus path: Documentation/ABI/testing/sysfs-class-wakeup
Extension: [no extension]
Size: 2304 bytes
Lines: 77
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/class/wakeup/
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		The /sys/class/wakeup/ directory contains pointers to all
		wakeup sources in the kernel at that moment in time.

What:		/sys/class/wakeup/.../name
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the name of the wakeup source.

What:		/sys/class/wakeup/.../active_count
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the number of times the wakeup source was
		activated.

What:		/sys/class/wakeup/.../event_count
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the number of signaled wakeup events
		associated with the wakeup source.

What:		/sys/class/wakeup/.../wakeup_count
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the number of times the wakeup source might
		abort suspend.

What:		/sys/class/wakeup/.../expire_count
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the number of times the wakeup source's
		timeout has expired.

What:		/sys/class/wakeup/.../active_time_ms
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the amount of time the wakeup source has
		been continuously active, in milliseconds.  If the wakeup
		source is not active, this file contains '0'.

What:		/sys/class/wakeup/.../total_time_ms
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the total amount of time this wakeup source
		has been active, in milliseconds.

What:		/sys/class/wakeup/.../max_time_ms
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the maximum amount of time this wakeup
		source has been continuously active, in milliseconds.

What:		/sys/class/wakeup/.../last_change_ms
Date:		June 2019
Contact:	Tri Vo <trong@android.com>
Description:
		This file contains the monotonic clock time when the wakeup
		source was touched last time, in milliseconds.

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.