dts/bindings/input/renesas,ra-ctsu-wheel.yaml

# Copyright (c) 2025 Renesas Electronics Corporation
# SPDX-License-Identifier: Apache-2.0

description: |
  Renesas RA Capacitive Touch Wheel

  This node is a renesas,ra-ctsu grandchild node and applies filters and calculations
  to detect an input event on a group which is the child of renesas,ra-ctsu.
  For more information see input/renesas,ra-ctsu.yaml

  Example:

  #include <dt-bindings/input/input-event-codes.h>

  &ctsu {
    compatible = "renesas,ra-ctsu";

    group1 {
      ...
      wheel {
        compatible = "renesas,ra-ctsu-wheel";
        elements = <0>, <3>, <2>, <1>;
        threshold = <711>;
        event-code = <INPUT_ABS_WHEEL>;
      };
    };
  };

compatible: "renesas,ra-ctsu-wheel"

include: [base.yaml]

properties:
  event-code:
    type: int
    required: true
    description: |
      The key code for the device. This is used to identify the device in the
      input subsystem. It should be one of the values defined in
      include/input-event-codes.h.

  elements:
    type: array
    description: |
      Element number array from CTSU group that used by this node. It should have the same
      order with electrode located on the Capacitive Pad.

  threshold:
    type: int
    default: 0
    description: |
      Touch/non-touch judgement threshold for automatic judgement.