Resguardo inicial

2026-09-06 12:53:21 -06:00
parent 662efe3c2a
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+.. 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.
+
+Supported features
+------------------
+
+Fan readings
+    Always supported.
+
+Fan target speed
+    If supported by the EC.
+
+Temperature readings
+    Always supported.
+
+Temperature thresholds
+    If supported by the EC.
+
+PWM fan control
+    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.