.\" Copyright (c) 2020 Vladimir Kondratyev <wulf@FreeBSD.org>
.\"
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.Dd January 18, 2021
.Dt HCONF 4
.Os
.Sh NAME
.Nm hconf
.Nd MS Windows Precision Touchpad configuration driver
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following lines in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device hconf"
.Cd "device hid"
.Cd "device hidbus"
.Ed
.Pp
Alternatively, to load the driver as a
module at boot time, place the following line in
.Xr loader.conf 5 :
.Bd -literal -offset indent
hconf_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for generic MS Windows Precision Touchpad
configuration collection.
It enables the host to configure two different aspects of the device.
One allows the host to select input mode, and the other allows the host to be
selective in what is reported.
.Sh SYSCTL VARIABLES
Next parameters are available as
.Xr sysctl 8
variables.
Debug parameter is available as
.Xr loader 8
tunable as well.
.Bl -tag -width indent
.It Va dev.hconf.*.input_mode
HID device input mode: 0 = mouse, 3 = touchpad.
.It Va dev.hconf.*.surface_switch
Enable / disable switch for surface: 1 = on, 0 = off.
.It Va dev.hconf.*.buttons_switch
Enable / disable switch for buttons: 1 = on, 0 = off.
.It Va hw.hid.hconf.debug
Debug output level, where 0 is debugging disabled and larger values increase
debug message verbosity.
Default is 0.
.El
.Sh SEE ALSO
.Xr hms 4 ,
.Xr hmt 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 13.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Vladimir Kondratyev Aq Mt wulf@FreeBSD.org .
Switch parameter support was added by
.An Andriy Gapon Aq Mt avg@FreeBSD.org .