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- # SPDX-License-Identifier: GPL-2.0-only
- %YAML 1.2
- ---
- $id: http://devicetree.org/schemas/input/hid-over-i2c.yaml#
- $schema: http://devicetree.org/meta-schemas/core.yaml#
- title: HID over I2C Devices
- maintainers:
- - Benjamin Tissoires <benjamin.tissoires@redhat.com>
- - Jiri Kosina <jkosina@suse.cz>
- description: |+
- HID over I2C provides support for various Human Interface Devices over the
- I2C bus. These devices can be for example touchpads, keyboards, touch screens
- or sensors.
- The specification has been written by Microsoft and is currently available here:
- https://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx
- If this binding is used, the kernel module i2c-hid will handle the communication
- with the device and the generic hid core layer will handle the protocol.
- allOf:
- - $ref: /schemas/input/touchscreen/touchscreen.yaml#
- properties:
- compatible:
- oneOf:
- - items:
- - enum:
- - wacom,w9013
- - const: hid-over-i2c
- - description: Just "hid-over-i2c" alone is allowed, but not recommended.
- const: hid-over-i2c
- reg:
- maxItems: 1
- interrupts:
- maxItems: 1
- hid-descr-addr:
- description: HID descriptor address
- $ref: /schemas/types.yaml#/definitions/uint32
- panel: true
- post-power-on-delay-ms:
- description: Time required by the device after enabling its regulators
- or powering it on, before it is ready for communication.
- touchscreen-inverted-x: true
- touchscreen-inverted-y: true
- vdd-supply:
- description: 3.3V supply
- vddl-supply:
- description: 1.8V supply
- wakeup-source: true
- required:
- - compatible
- - reg
- - interrupts
- additionalProperties: false
- examples:
- - |
- i2c {
- #address-cells = <1>;
- #size-cells = <0>;
- hid@2c {
- compatible = "hid-over-i2c";
- reg = <0x2c>;
- hid-descr-addr = <0x0020>;
- interrupts = <3 2>;
- };
- };
- ...
|
