Documentation/ABI/testing/sysfs-class-power-twl4030

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-class-power-twl4030

File Facts

System: Linux kernel
Corpus path: Documentation/ABI/testing/sysfs-class-power-twl4030
Extension: [no extension]
Size: 1069 bytes
Lines: 34
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/power_supply/twl4030_usb/mode
Description:
	Changing mode for USB port.
	Writing to this can disable charging.

	Possible values are:

		=============	===========================================
		"auto"		draw power as appropriate for detected
				power source and battery status.
		"off"		do not draw any power.
		"continuous"	activate mode described as "linear" in
				TWL data sheets.  This uses whatever
				current is available and doesn't switch off
				when voltage drops.

				This is useful for unstable power sources
				such as bicycle dynamo, but care should
				be taken that battery is not over-charged.
		=============	===========================================

What: /sys/class/power_supply/twl4030_ac/mode
Description:
	Changing mode for 'ac' port.
	Writing to this can disable charging.

	Possible values are:

		======	===========================================
		"auto"	draw power as appropriate for detected
			power source and battery status.
		"off"	do not draw any power.
		======	===========================================

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.