| .. SPDX-License-Identifier: GPL-2.0-or-later |
| |
| Kernel driver cros_ec_hwmon |
| =========================== |
| |
| Supported chips: |
| |
| * ChromeOS embedded controllers. |
| |
| Prefix: 'cros_ec' |
| |
| Addresses scanned: - |
| |
| Author: |
| |
| - Thomas Weißschuh <linux@weissschuh.net> |
| |
| Description |
| ----------- |
| |
| This driver implements support for hardware monitoring commands exposed by the |
| ChromeOS embedded controller used in Chromebooks and other devices. |
| |
| The channel labels exposed via hwmon are retrieved from the EC itself. |
| |
| Fan and temperature readings are supported. PWM fan control is also supported if |
| the EC also supports setting fan PWM values and fan mode. Note that EC will |
| switch fan control mode back to auto when suspended. This driver will restore |
| the fan state to what they were before suspended when resumed. |
| If a fan is controllable, this driver will register that fan as a cooling device |
| in the thermal framework as well. |
