0001 .. SPDX-License-Identifier: GPL-2.0
0002
0003 Kernel driver lan966x-hwmon
0004 ===========================
0005
0006 Supported chips:
0007
0008 * Microchip LAN9668 (sensor in SoC)
0009
0010 Prefix: 'lan9668-hwmon'
0011
0012 Datasheet: https://microchip-ung.github.io/lan9668_reginfo
0013
0014 Authors:
0015
0016 Michael Walle <michael@walle.cc>
0017
0018 Description
0019 -----------
0020
0021 This driver implements support for the Microchip LAN9668 on-chip
0022 temperature sensor as well as its fan controller. It provides one
0023 temperature sensor and one fan controller. The temperature range
0024 of the sensor is specified from -40 to +125 degrees Celsius and
0025 its accuracy is +/- 5 degrees Celsius. The fan controller has a
0026 tacho input and a PWM output with a customizable PWM output
0027 frequency ranging from ~20Hz to ~650kHz.
0028
0029 No alarms are supported by the SoC.
0030
0031 The driver exports temperature values, fan tacho input and PWM
0032 settings via the following sysfs files:
0033
0034 **temp1_input**
0035
0036 **fan1_input**
0037
0038 **pwm1**
0039
0040 **pwm1_freq**
