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diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-lua b/Documentation/ABI/testing/sysfs-driver-hid-roccat-lua
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+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/control
+Date:           October 2012
+Contact:        Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:    When written, cpi, button and light settings can be configured.
+                When read, actual cpi setting and sensor data are returned.
+                The data has to be 8 bytes long.
+Users:          http://roccat.sourceforge.net