1.\" $OpenBSD: pwmfan.4,v 1.1 2019/12/03 09:40:56 patrick Exp $ 2.\" 3.\" Copyright (c) 2019 Patrick Wildt <patrick@blueri.se> 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: December 3 2019 $ 18.Dt PWMFAN 4 19.Os 20.Sh NAME 21.Nm pwmfan 22.Nd PWM fan controller 23.Sh SYNOPSIS 24.Cd "pwmfan* at fdt?" 25.Sh DESCRIPTION 26The 27.Nm 28driver provides support for fans that are controlled by a PWM signal. 29.Sh SEE ALSO 30.Xr intro 4 31.Sh HISTORY 32The 33.Nm 34device driver first appeared in 35.Ox 6.7 . 36.Sh AUTHORS 37.An -nosplit 38The 39.Nm 40driver was written by 41.An Patrick Wildt Aq Mt patrick@blueri.se . 42