On 08/01/2024 08:43, Billy Tsai wrote: > + pwms: > + description: > + PWM provider. > + maxItems: 1 > + > + "#cooling-cells": > + const: 2 > + > + cooling-levels: > + description: > + The control value which correspond to thermal cooling states. > + $ref: /schemas/types.yaml#/definitions/uint32-array > + > + tach-ch: > + description: > + The tach channel used for the fan. > + $ref: /schemas/types.yaml#/definitions/uint8-array What is the tach-channel and why is it different from pwm specifier? Best regards, Krzysztof