1.\" Copyright (c) 2022 Vladimir Kondratyev <wulf@FreeBSD.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.\" $FreeBSD$ 26.\" 27.Dd February 27, 2022 28.Dt IETP 4 29.Os 30.Sh NAME 31.Nm ietp 32.Nd Elantech I2C touchpad device 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 ietp" 38.Cd "device hidbus" 39.Cd "device hid" 40.Cd "device iichid" 41.Cd "device iicbus" 42.Cd "device evdev" 43 44.Ed 45.Pp 46Alternatively, to load the driver as a 47module at boot time, place the following line in 48.Xr loader.conf 5 : 49.Bd -literal -offset indent 50ietp_load="YES" 51.Ed 52.Sh DESCRIPTION 53The 54.Nm 55driver provides support for the Elantech I2C touchpad multi-touch devices 56found in many laptops. 57.Pp 58To get multi-touch device working in 59.Xr X 7 , 60install 61.Pa ports/x11-drivers/xf86-input-libinput . 62.Sh FILES 63.Nm 64creates a pseudo-device file, 65.Pa /dev/input/eventX 66which presents the multi-touch device as an input event device. 67.Sh SEE ALSO 68.Xr hid 4 , 69.Xr loader.conf 5 , 70.Xr xorg.conf 5 Pq Pa ports/x11/xorg , 71.Xr libinput 4 Pq Pa ports/x11-drivers/xf86-input-libinput . 72.Sh AUTHORS 73.An -nosplit 74The 75.Nm 76driver was written by 77.An Vladimir Kondratyev Aq Mt wulf@FreeBSD.org . 78.Sh BUGS 79.Nm 80cannot act like 81.Xr sysmouse 4 82