1.\" $OpenBSD: pwmbl.4,v 1.2 2019/10/22 08:54:29 jmc Exp $ 2.\" 3.\" Copyright (c) 2019 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: October 22 2019 $ 18.Dt PWMBL 4 19.Os 20.Sh NAME 21.Nm pwmbl 22.Nd PWM backlight controller 23.Sh SYNOPSIS 24.Cd "pwmbl* at fdt?" 25.Sh DESCRIPTION 26The 27.Nm 28driver provides support for backlight controllers that are controlled 29by a PWM signal. 30.Sh SEE ALSO 31.Xr intro 4 32.Sh HISTORY 33The 34.Nm 35device driver first appeared in 36.Ox 6.7 . 37.Sh AUTHORS 38.An -nosplit 39The 40.Nm 41driver was written by 42.An Krystian Lewandowski . 43