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$FreeBSD: stable/11/share/man/man4/wsp.4 328460 2018-01-27 06:10:20Z kevans $
.Dd January 15, 2018 .Dt WSP 4 .Os .Sh NAME .Nm wsp .Nd Wellspring touchpad driver .Sh SYNOPSIS To compile this driver into the kernel, place the following lines into your kernel configuration file: d -ragged -offset indent .Cd "device wsp" .Cd "device usb" .Ed
p Alternatively, to load the driver as a module at boot time, place the following line in .Xr loader.conf 5 : d -literal -offset indent wsp_load="YES" .Ed .Sh DESCRIPTION The .Nm driver provides support for the Apple Internal Trackpad device found in many Apple laptops.
p 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.
p .Nm supports dynamic reconfiguration using .Xr sysctl 8 through nodes under .Nm hw.usb.wsp . Pointer sensitivity can be controlled using the sysctl tunable .Nm hw.usb.wsp.scale_factor . Tap to left-click can be controlled using the sysctl tunable .Nm hw.usb.wsp.enable_single_tap_clicks , set to 0 to disable single tap clicks or 1 to enable them (default). .Sh FILES .Nm creates a blocking pseudo-device file,
a /dev/wsp0 , which presents the mouse as a .Em sysmouse or .Em mousesystems type device--see .Xr moused 8 for an explanation of these mouse types. .Sh SEE ALSO .Xr sysmouse 4 , .Xr usb 4 , .Xr loader.conf 5 , .Xr xorg.conf 5 Pq Pa ports/x11/xorg , .Xr moused 8 , .Xr sysctl 8 .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Huang Wen Hui Aq Mt huanghwh@gmail.com .