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Update man page to document z-axis emulation.

This commit is contained in:
blymn 2018-11-06 09:14:08 +00:00
parent abbf616b9b
commit aca10d9a04
1 changed files with 29 additions and 3 deletions
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@ -1,4 +1,4 @@
.\" $NetBSD: pms.4,v 1.31 2018/02/04 18:17:59 christos Exp $
.\" $NetBSD: pms.4,v 1.32 2018/11/06 09:14:08 blymn Exp $
.\"
.\" Copyright (c) 1993 Christopher G. Demetriou
.\" All rights reserved.
@ -144,12 +144,15 @@ If set to 1, two-finger events generate a right button click.
If set to 2, two-finger events generate a middle button click.
.It Dv hw.synaptics.scale_x
.It Dv hw.synaptics.scale_y
.It Dv hw.synaptics.scale_z
Scale factor used to divide movement deltas derived from Synaptics
coordinates (0-6143) to yield more reasonable values (default 16).
coordinates (0-6143) to yield more reasonable values (default 16 for x
and y, 1 for z).
.It Dv hw.synaptics.max_speed_x
.It Dv hw.synaptics.max_speed_y
.It Dv hw.synaptics.max_speed_z
Limits pointer rate of change (after scaling) per reported movement
event (default 32).
event (default 32 for x and y, 2 for z).
.It Dv hw.synaptics.movement_threshold
Movements of less than this value (in Synaptics coordinates) are
ignored (default 4).
@ -175,6 +178,29 @@ event.
For completeness, the region between the left hand side of the clickpad,
button2_edge and button_boundary will be reported as a button1 event
as will any clicks that occur outside the button emulation region.
.It Dv hw.synaptics.finger_scroll-min
The minimum finger width at which the driver will start reporting
vertical movements as Z axis events.
Effectively, this emulates a mouse scroll wheel by the user using two
fingers together on the click pad.
The default value is 5, this value cannot be less than 5 due to the way
the clickpad reports finger width.
.It Dv hw.synaptics.finger_scroll-max
The maximum finger width at which the driver will report finger
movement as Z axis events.
The default value is 12 and cannot be greater than 14.
.It Dv hw.synaptics.finger_scroll-hysteresis
This defines the number of packets to continue with the Z axis emulation.
Due to the nature of the clickpad maintaining constant contact can be
difficult.
This hysteresis value prevents the driver flipping between two finger
scroll and normal mouse movement erratically.
Each time a valid finger scroll width is detected the packet count is
reset.
If this variable is set too high then mouse movements will be interpreted
as Z-axis events after the two finger scoll has finished.
If the variable is set too low then there will be mouse movements observed
during the two finger scroll.
.El
.Pp
The following