Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/input/iqs62x-keys.yaml
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1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2 %YAML 1.2 3 --- 4 $id: http://devicetree.org/schemas/input/iqs62x-keys.yaml# 5 $schema: http://devicetree.org/meta-schemas/core.yaml# 6 7 title: Azoteq IQS620A/621/622/624/625 Keys and Switches 8 9 maintainers: 10 - Jeff LaBundy <jeff@labundy.com> 11 12 allOf: 13 - $ref: input.yaml# 14 15 description: | 16 The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors 17 feature a variety of self-capacitive, mutual-inductive and Hall-effect sens- 18 ing capabilities that can facilitate a variety of contactless key and switch 19 applications. 20 21 These functions are collectively represented by a "keys" child node from the 22 parent MFD driver. See Documentation/devicetree/bindings/mfd/iqs62x.yaml for 23 further details and examples. Sensor hardware configuration (self-capacitive 24 vs. mutual-inductive, etc.) is selected based on the device's firmware. 25 26 properties: 27 compatible: 28 enum: 29 - azoteq,iqs620a-keys 30 - azoteq,iqs621-keys 31 - azoteq,iqs622-keys 32 - azoteq,iqs624-keys 33 - azoteq,iqs625-keys 34 35 linux,keycodes: 36 minItems: 1 37 maxItems: 16 38 description: | 39 Specifies the numeric keycodes associated with each available touch or 40 proximity event according to the following table. An 'x' indicates the 41 event is supported for a given device. Specify 0 for unused events. 42 43 ------------------------------------------------------------------------- 44 | # | Event | IQS620A | IQS621 | IQS622 | IQS624 | IQS625 | 45 ------------------------------------------------------------------------- 46 | 0 | CH0 Touch | x | x | x | x | x | 47 | | Antenna 1 Touch* | x | | | | | 48 ------------------------------------------------------------------------- 49 | 1 | CH0 Proximity | x | x | x | x | x | 50 | | Antenna 1 Prox.* | x | | | | | 51 ------------------------------------------------------------------------- 52 | 2 | CH1 Touch | x | x | x | x | x | 53 | | Ant. 1 Deep Touch* | x | | | | | 54 ------------------------------------------------------------------------- 55 | 3 | CH1 Proximity | x | x | x | x | x | 56 ------------------------------------------------------------------------- 57 | 4 | CH2 Touch | x | | | | | 58 ------------------------------------------------------------------------- 59 | 5 | CH2 Proximity | x | | | | | 60 | | Antenna 2 Prox.* | x | | | | | 61 ------------------------------------------------------------------------- 62 | 6 | Metal (+) Touch** | x | x | | | | 63 | | Ant. 2 Deep Touch* | x | | | | | 64 ------------------------------------------------------------------------- 65 | 7 | Metal (+) Prox.** | x | x | | | | 66 | | Antenna 2 Touch* | x | | | | | 67 ------------------------------------------------------------------------- 68 | 8 | Metal (-) Touch** | x | x | | | | 69 ------------------------------------------------------------------------- 70 | 9 | Metal (-) Prox.** | x | x | | | | 71 ------------------------------------------------------------------------- 72 | 10 | SAR Active*** | x | | x | | | 73 ------------------------------------------------------------------------- 74 | 11 | SAR Quick Rel.*** | x | | x | | | 75 ------------------------------------------------------------------------- 76 | 12 | SAR Movement*** | x | | x | | | 77 ------------------------------------------------------------------------- 78 | 13 | SAR Filter Halt*** | x | | x | | | 79 ------------------------------------------------------------------------- 80 | 14 | Wheel Up | | | | x | | 81 ------------------------------------------------------------------------- 82 | 15 | Wheel Down | | | | x | | 83 ------------------------------------------------------------------------- 84 * Two-channel SAR. Replaces CH0-2 plus metal touch and proximity events 85 if enabled via firmware. 86 ** "+" and "-" refer to the polarity of a channel's delta (LTA - counts), 87 where "LTA" is defined as the channel's long-term average. 88 *** One-channel SAR. Replaces CH0-2 touch and proximity events if enabled 89 via firmware. 90 91 patternProperties: 92 "^hall-switch-(north|south)$": 93 type: object 94 $ref: input.yaml# 95 description: 96 Represents north/south-field Hall-effect sensor touch or proximity 97 events. Note that north/south-field orientation is reversed on the 98 IQS620AXzCSR device due to its flip-chip package. 99 100 properties: 101 linux,code: true 102 103 azoteq,use-prox: 104 $ref: /schemas/types.yaml#/definitions/flag 105 description: 106 If present, specifies that Hall-effect sensor reporting should 107 use the device's wide-range proximity threshold instead of its 108 close-range touch threshold (default). 109 110 required: 111 - linux,code 112 113 additionalProperties: false 114 115 if: 116 properties: 117 compatible: 118 contains: 119 enum: 120 - azoteq,iqs624-keys 121 - azoteq,iqs625-keys 122 then: 123 patternProperties: 124 "^hall-switch-(north|south)$": false 125 126 required: 127 - compatible 128 - linux,keycodes 129 130 additionalProperties: false 131 132 ...
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