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-rw-r--r--Documentation/hwmon/dell-smm-hwmon.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/hwmon/dell-smm-hwmon.rst b/Documentation/hwmon/dell-smm-hwmon.rst
index e5d85e40972c..d8f1d6859b96 100644
--- a/Documentation/hwmon/dell-smm-hwmon.rst
+++ b/Documentation/hwmon/dell-smm-hwmon.rst
@@ -46,6 +46,9 @@ temp[1-10]_input RO Temperature reading in milli-degrees
temp[1-10]_label RO Temperature sensor label.
=============================== ======= =======================================
+Due to the nature of the SMM interface, each pwmX attribute controls
+fan number X.
+
Disabling automatic BIOS fan control
------------------------------------