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-This package contains user-space programs for controlling the fans
-on Dell laptops. Make sure the i8k module is loaded before using
-i8kutils.
+i8kutils package contains user-space programs for controlling the fans
+on some Dell laptops.
+
+Note: i8kutils is entirely built upon the dell-smm-hwmon kernel module.
+
+These data contains the states and the system temperature along with
+others infos. The fields returned in a query to the system are
+summarized below.
+
+ * BIOS version
+
+ * Dell service tag (later known as 'serial number')
+
+ * CPU temperature
+
+ * fan status
+
+ * fan rotation speed (only on some models)
+
+ * ac power status
+
+ * volume buttons status (not the multimedia buttons)
+
+The data are collected from the dell-smm-hwmon kernel module that is
+included in recent kernels.