Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw

File Facts

System: Linux kernel
Corpus path: Documentation/ABI/testing/sysfs-bus-surface_aggregator-tabletsw
Extension: [no extension]
Size: 2173 bytes
Lines: 58
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/surface_aggregator/devices/01:0e:01:00:01/state
Date:		July 2022
KernelVersion:	5.20
Contact:	Maximilian Luz <luzmaximilian@gmail.com>
Description:
		This attribute returns a string with the current type-cover
		or device posture, as indicated by the embedded controller.
		Currently returned posture states are:

		- "disconnected": The type-cover has been disconnected.

		- "closed": The type-cover has been folded closed and lies on
		  top of the display.

		- "laptop": The type-cover is open and in laptop-mode, i.e.,
		  ready for normal use.

		- "folded-canvas": The type-cover has been folded back
		  part-ways, but does not lie flush with the back side of the
		  device. In general, this means that the kick-stand is used
		  and extended atop of the cover.

		- "folded-back": The type cover has been fully folded back and
		  lies flush with the back side of the device.

		- "<unknown>": The current state is unknown to the driver, for
		  example due to newer as-of-yet unsupported hardware.

		New states may be introduced with new hardware. Users therefore
		must not rely on this list of states being exhaustive and
		gracefully handle unknown states.

What:		/sys/bus/surface_aggregator/devices/01:26:01:00:01/state
Date:		July 2022
KernelVersion:	5.20
Contact:	Maximilian Luz <luzmaximilian@gmail.com>
Description:
		This attribute returns a string with the current device posture, as indicated by the embedded controller. Currently
		returned posture states are:

		- "closed": The lid of the device is closed.

		- "laptop": The lid of the device is opened and the device
		  operates as a normal laptop.

		- "slate": The screen covers the keyboard or has been flipped
		  back and the device operates mainly based on touch input.

		- "tablet": The device operates as tablet and exclusively
		  relies on touch input (or external peripherals).

		- "<unknown>": The current state is unknown to the driver, for
		  example due to newer as-of-yet unsupported hardware.

		New states may be introduced with new hardware. Users therefore
		must not rely on this list of states being exhaustive and
		gracefully handle unknown states.

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.