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diff --git a/Documentation/ABI/testing/sysfs-driver-hid-multitouch b/Documentation/ABI/testing/sysfs-driver-hid-multitouch
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+What:           /sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/quirks
+Date:           November 2011
+Contact:        Benjamin Tissoires <benjamin.tissoires@gmail.com>
+Description:    The integer value of this attribute corresponds to the
+                quirks actually in place to handle the device's protocol.
+                When read, this attribute returns the current settings (see
+                MT_QUIRKS_* in hid-multitouch.c).
+                When written this attribute change on the fly the quirks, then
+                the protocol to handle the device.