1.\" Copyright (c) 2014 Hans Petter Selasky <hselasky at freebsd dot org>. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD: head/share/man/man4/wsp.4 328027 2018-01-15 21:53:33Z kevans $ 26.\" 27.Dd July 9, 2020 28.Dt WSP 4 29.Os 30.Sh NAME 31.Nm wsp 32.Nd Wellspring touchpad driver 33.Sh SYNOPSIS 34To compile this driver into the kernel, place the following lines into 35your kernel configuration file: 36.Bd -ragged -offset indent 37.Cd "device wsp" 38.Cd "device usb" 39.Ed 40.Pp 41Alternatively, to load the driver as a module at boot time, 42place the following line in 43.Xr loader.conf 5 : 44.Bd -literal -offset indent 45wsp_load="YES" 46.Ed 47.Sh DESCRIPTION 48The 49.Nm 50driver provides support for the Apple Internal Trackpad 51device found in many Apple laptops. 52.Pp 53The driver simulates a three-button mouse using multi-finger tap 54detection. 55A single-finger press generates a left button click. 56A two-finger tap maps to the right button; whereas a three-finger tap 57gets treated as a middle button click. 58.Pp 59.Nm 60supports dynamic reconfiguration using 61.Xr sysctl 8 62through nodes under 63.Nm hw.usb.wsp . 64Pointer sensitivity can be controlled using the sysctl tunable 65.Nm hw.usb.wsp.scale_factor . 66Tap to left-click can be controlled using the sysctl tunable 67.Nm hw.usb.wsp.enable_single_tap_clicks , 68set to 0 to disable single tap clicks or 1 to enable them (default). 69.Sh FILES 70.Nm 71creates a blocking pseudo-device file, 72.Pa /dev/wsp0 , 73which presents the mouse as a 74.Em sysmouse 75or 76.Em mousesystems 77type device--see 78.Xr moused 8 79for an explanation of these mouse 80types. 81.Sh SEE ALSO 82.Xr sysmouse 4 , 83.Xr usb 4 , 84.Xr loader.conf 5 , 85.Xr xorg.conf 5 Pq Pa x11/xorg , 86.Xr moused 8 , 87.Xr sysctl 8 88.Sh AUTHORS 89.An -nosplit 90The 91.Nm 92driver was written by 93.An Huang Wen Hui Aq Mt huanghwh@gmail.com . 94