1.\" $NetBSD: igpio.4,v 1.4 2023/02/27 15:41:41 msaitoh Exp $ 2.\" 3.\" Copyright (c) 2022 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Emmanuel Dreyfus. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd February 27, 2023 31.Dt IGPIO 4 32.Os 33.Sh NAME 34.Nm igpio 35.Nd Intel GPIO Controller 36.Sh SYNOPSIS 37.Cd "igpio* at acpi?" 38.Cd "gpio* at gpiobus?" 39.Sh DESCRIPTION 40.Nm 41provides a 42.Xr gpio 4 43interface for the following Intel chipsets: 44.Bl -tag -width autoselect -compact 45.It Alder Lake-N 46.It Alder Lake-P 47.It Alder Lake-S 48.It Cannon Lake-H 49.It Cannon Lake-LP 50.It Cedarfork 51.It Coffee Lake-S 52.It Denverton 53.It Emmitsburg 54.It Gemini Lake 55.It Ice Lake-LP 56.It Ice Lake-N 57.It Jasper Lake 58.It Lakefield 59.It Lewisburg 60.It Raptor Lake-S 61.It Sunrisepoint-H 62.It Sunrisepoint-LP 63.It Tiger Lake-H 64.It Tiger Lake-LP 65.El 66Support for Baytrail, Broxton, Cherryview and Lynxpoint are not enabled yet. 67.Pp 68The driver supports 69.Dv GPIO_PIN_INPUT , 70.Dv GPIO_PIN_OUTPUT , 71.Dv GPIO_PIN_INOUT , 72.Dv GPIO_PIN_ININ , 73.Dv GPIO_PIN_PULLUP , 74.Dv GPIO_PIN_PULLDOWN , 75and interrupt capabilies 76.Dv GPIO_INTR_POS_EDGE , 77.Dv GPIO_INTR_NEG_EDGE , 78.Dv GPIO_INTR_DOUBLE_EDGE , 79.Dv GPIO_INTR_HIGH_LEVEL , 80.Dv GPIO_INTR_LOW_LEVEL . 81.Sh SEE ALSO 82.Xr gpio 4 83.Sh HISTORY 84The 85.Nm 86driver first appeared in 87.Nx 10.0 . 88.Sh AUTHORS 89.An -nosplit 90The 91.Nm 92driver and man page was written by 93.An Emmanuel Dreyfus 94.Aq Mt manu@NetBSD.org . 95