xref: /openbmc/linux/Documentation/ABI/testing/sysfs-driver-hid-ntrig (revision b55dc1dc)

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.