| .. 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 |
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| Authors: |
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| Michael Walle <michael@walle.cc> |
| |
| 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: |
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| **temp1_input** |
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| **fan1_input** |
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| **pwm1** |
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| **pwm1_freq** |
