1.\" $OpenBSD: bcmgpio.4,v 1.2 2020/05/16 17:58:55 jmc Exp $ 2.\" 3.\" Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: May 16 2020 $ 18.Dt BCMGPIO 4 19.Os 20.Sh NAME 21.Nm bcmgpio 22.Nd Broadcom BCM283x GPIO controller 23.Sh SYNOPSIS 24.Cd "bcmgpio* at fdt?" 25.Sh DESCRIPTION 26The 27.Nm 28driver uses pin control data from the device tree to select one of 29multiple possible roles available for pins on Broadcom BCM283x and 30BCM2711 SoCs. 31It does not provide direct device driver entry points but makes its 32functions available to other drivers. 33.Sh SEE ALSO 34.Xr gpio 4 , 35.Xr intro 4 36.Sh HISTORY 37The 38.Nm 39driver first appeared in 40.Ox 6.7 . 41.Sh AUTHORS 42.An -nosplit 43The 44.Nm 45driver was written by 46.An Mark Kettenis Aq Mt kettenis@openbsd.org . 47