.\" $OpenBSD: abcrtc.4,v 1.3 2023/12/23 02:42:51 jsg Exp $ .\" .\" Copyright (c) 2006 Theo de Raadt .\" Copyright (c) 2018 Mark Kettenis .\" Copyright (c) 2018 Patrick Wildt .\" .\" Permission to use, copy, modify, and distribute this software for any .\" purpose with or without fee is hereby granted, provided that the above .\" copyright notice and this permission notice appear in all copies. .\" .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. .\" .Dd $Mdocdate: December 23 2023 $ .Dt ABCRTC 4 .Os .Sh NAME .Nm abcrtc .Nd Abracon AB1805 real-time clock .Sh SYNOPSIS .Cd "abcrtc* at iic? addr 0x69" .Sh DESCRIPTION The .Nm driver provides support for the Abracon AB1805 real-time clock chip and similar variants. .Sh SEE ALSO .Xr iic 4 , .Xr intro 4 .Sh HISTORY The .Nm driver first appeared in .Ox 6.5 . .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Patrick Wildt Aq Mt patrick@blueri.se .