| # 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>; | |
| }; | |
| }; | |
| ... |