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diff --git a/Documentation/ABI/testing/sysfs-driver-hid-ntrig b/Documentation/ABI/testing/sysfs-driver-hid-ntrig
new file mode 100644
index 000000000000..e574a5625efe
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+What:           /sys/bus/hid/drivers/ntrig/<dev>/activate_slack
+Date:           May, 2010
+KernelVersion:  2.6.35
+Contact:        linux-input@vger.kernel.org
+Description:
+                (RW) Number of contact frames ignored before acknowledging the
+                start of activity (activating touch).
+
+
+What:           /sys/bus/hid/drivers/ntrig/<dev>/decativate_slack
+Date:           May, 2010
+KernelVersion:  2.6.35
+Contact:        linux-input@vger.kernel.org
+Description:
+                (RW) Number of empty (no contact) frames ignored before
+                acknowledging the end of activity (deactivating touch).
+
+                When the last finger is removed from the device, it sends a
+                number of empty frames. By holding off on deactivation for a few
+                frames false erroneous disconnects can be tolerated, where the
+                sensor may mistakenly not detect a finger that is still present.
+
+
+What:           /sys/bus/hid/drivers/ntrig/<dev>/activation_width
+What:           /sys/bus/hid/drivers/ntrig/<dev>/activation_height
+Date:           May, 2010
+KernelVersion:  2.6.35
+Contact:        linux-input@vger.kernel.org
+Description:
+                Threholds to override activation slack.
+
+                activation_width:       (RW) Width threshold to immediately
+                                        start processing touch events.
+
+                activation_height:      (RW) Height threshold to immediately
+                                        start processing touch events.
+
+
+What:           /sys/bus/hid/drivers/ntrig/<dev>/min_width
+What:           /sys/bus/hid/drivers/ntrig/<dev>/min_height
+Date:           May, 2010
+KernelVersion:  2.6.35
+Contact:        linux-input@vger.kernel.org
+Description:
+                Minimum size contact accepted.
+
+                min_width:      (RW) Minimum touch contact width to decide
+                                activation and activity.
+
+                min_height:     (RW) Minimum touch contact height to decide
+                                activation and activity.
+
+
+What:           /sys/bus/hid/drivers/ntrig/<dev>/sensor_physical_width
+What:           /sys/bus/hid/drivers/ntrig/<dev>/sensor_physical_height
+Date:           May, 2010
+KernelVersion:  2.6.35
+Contact:        linux-input@vger.kernel.org
+Description:
+                (RO) These are internal ranges not used for normal events but
+                useful for tuning.
+
+
+What:           /sys/bus/hid/drivers/ntrig/<dev>/sensor_logical_width
+What:           /sys/bus/hid/drivers/ntrig/<dev>/sensor_logical_height
+Date:           May, 2010
+KernelVersion:  2.6.35
+Contact:        linux-input@vger.kernel.org
+Description:
+                (RO) The range for positions reported during activity.