49 lines
1.6 KiB
YAML
49 lines
1.6 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/matrix-keymap.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Common key matrices binding for matrix-connected key boards
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maintainers:
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- Olof Johansson <olof@lixom.net>
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description: |
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A simple common binding for matrix-connected key boards. Currently targeted at
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defining the keys in the scope of linux key codes since that is a stable and
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standardized interface at this time.
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Some users of this binding might choose to specify secondary keymaps for
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cases where there is a modifier key such as a Fn key. Proposed names
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for said properties are "linux,fn-keymap" or with another descriptive
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word for the modifier other from "Fn".
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properties:
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linux,keymap:
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$ref: '/schemas/types.yaml#/definitions/uint32-array'
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description: |
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An array of packed 1-cell entries containing the equivalent of row,
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column and linux key-code. The 32-bit big endian cell is packed as:
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row << 24 | column << 16 | key-code
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keypad,num-rows:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Number of row lines connected to the keypad controller.
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keypad,num-columns:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Number of column lines connected to the keypad controller.
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additionalProperties: true
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examples:
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- |
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keypad {
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/* ... */
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linux,keymap = < 0x00030012
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0x0102003a >;
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keypad,num-rows = <2>;
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keypad,num-columns = <8>;
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};
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