Documentation/devicetree/bindings/input/dlink,dir685-touchkeys.txt

File Facts

System

Linux kernel

Corpus path

Documentation/devicetree/bindings/input/dlink,dir685-touchkeys.txt

Extension

.txt

Size

597 bytes

Lines

22

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

This is a I2C one-off touchkey controller based on the Cypress Semiconductor
CY8C214 MCU with some firmware in its internal 8KB flash. The circuit
board inside the router is named E119921.

The touchkey device node should be placed inside an I2C bus node.

Required properties:
- compatible: must be "dlink,dir685-touchkeys"
- reg: the I2C address of the touchkeys
- interrupts: reference to the interrupt number

Example:

touchkeys@26 {
	compatible = "dlink,dir685-touchkeys";
	reg = <0x26>;
	interrupt-parent = <&gpio0>;
	interrupts = <17 IRQ_TYPE_EDGE_FALLING>;
};

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.