.. SPDX-License-Identifier: GPL-2.0 Kernel driver lan966x-hwmon =========================== Supported chips: * Microchip LAN9668 (sensor in SoC) Prefix: 'lan9668-hwmon' Datasheet: https://microchip-ung.github.io/lan9668_reginfo Authors: Michael Walle Description ----------- This driver implements support for the Microchip LAN9668 on-chip temperature sensor as well as its fan controller. It provides one temperature sensor and one fan controller. The temperature range of the sensor is specified from -40 to +125 degrees Celsius and its accuracy is +/- 5 degrees Celsius. The fan controller has a tacho input and a PWM output with a customizable PWM output frequency ranging from ~20Hz to ~650kHz. No alarms are supported by the SoC. The driver exports temperature values, fan tacho input and PWM settings via the following sysfs files: **temp1_input** **fan1_input** **pwm1** **pwm1_freq**