WSP(4) FreeBSD Kernel Interfaces Manual WSP(4)
NAME
wsp - Wellspring touchpad driver
SYNOPSIS
To compile this driver into the kernel, place the following lines into
your kernel configuration file:
device wsp
device hid
device usb
Alternatively, to load the driver as a module at boot time, place the
following line in loader.conf(5):
wsp_load="YES"
DESCRIPTION
The wsp driver provides support for the Apple Internal Trackpad device
found in many Apple laptops.
The driver simulates a three-button mouse using multi-finger tap
detection. A single-finger press generates a left button click. A two-
finger tap maps to the right button; whereas a three-finger tap gets
treated as a middle button click.
wsp supports dynamic reconfiguration using sysctl(8) through nodes under
hw.usb.wsp. Pointer sensitivity can be controlled using the sysctl
tunable hw.usb.wsp.scale_factor. Tap to left-click can be controlled
using the sysctl tunable hw.usb.wsp.enable_single_tap_clicks, set to 0 to
disable single tap clicks or 1 to enable them (default). Z-Axis
sensitivity can be controlled using the sysctl tunable
hw.usb.wsp.z_factor. Z-Axis inversion can be controlled using the sysctl
tunable hw.usb.wsp.z_invert, set to 0 to disable (default) or 1 to enable
inversion.
FILES
wsp creates a blocking pseudo-device file, /dev/wsp0, which presents the
mouse as a sysmouse or mousesystems type device--see moused(8) for an
explanation of these mouse types.
SEE ALSO
sysmouse(4), usb(4), loader.conf(5), xorg.conf(5) (ports/x11/xorg),
moused(8), sysctl(8)
AUTHORS
The wsp driver was written by Huang Wen Hui <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 February 9, 2021 FreeBSD 14.1-RELEASE-p8