1 .. SPDX-License-Identifier: GPL-2.0 1 .. SPDX-License-Identifier: GPL-2.0
2 2
3 Kernel driver lan966x-hwmon 3 Kernel driver lan966x-hwmon
4 =========================== 4 ===========================
5 5
6 Supported chips: 6 Supported chips:
7 7
8 * Microchip LAN9668 (sensor in SoC) 8 * Microchip LAN9668 (sensor in SoC)
9 9
10 Prefix: 'lan9668-hwmon' 10 Prefix: 'lan9668-hwmon'
11 11
12 Datasheet: https://microchip-ung.github.io 12 Datasheet: https://microchip-ung.github.io/lan9668_reginfo
13 13
14 Authors: 14 Authors:
15 15
16 Michael Walle <michael@walle.cc> 16 Michael Walle <michael@walle.cc>
17 17
18 Description 18 Description
19 ----------- 19 -----------
20 20
21 This driver implements support for the Microch 21 This driver implements support for the Microchip LAN9668 on-chip
22 temperature sensor as well as its fan controll 22 temperature sensor as well as its fan controller. It provides one
23 temperature sensor and one fan controller. The 23 temperature sensor and one fan controller. The temperature range
24 of the sensor is specified from -40 to +125 de 24 of the sensor is specified from -40 to +125 degrees Celsius and
25 its accuracy is +/- 5 degrees Celsius. The fan 25 its accuracy is +/- 5 degrees Celsius. The fan controller has a
26 tacho input and a PWM output with a customizab 26 tacho input and a PWM output with a customizable PWM output
27 frequency ranging from ~20Hz to ~650kHz. 27 frequency ranging from ~20Hz to ~650kHz.
28 28
29 No alarms are supported by the SoC. 29 No alarms are supported by the SoC.
30 30
31 The driver exports temperature values, fan tac 31 The driver exports temperature values, fan tacho input and PWM
32 settings via the following sysfs files: 32 settings via the following sysfs files:
33 33
34 **temp1_input** 34 **temp1_input**
35 35
36 **fan1_input** 36 **fan1_input**
37 37
38 **pwm1** 38 **pwm1**
39 39
40 **pwm1_freq** 40 **pwm1_freq**
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