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+.\" $OpenBSD: pcaled.4,v 1.6 2013/07/16 16:05:49 schwarze Exp $
+.\"
+.\" Copyright (c) 2006 Theo de Raadt <deraadt@openbsd.org>
+.\"
+.\" 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: July 16 2013 $
+.Dt PCALED 4
+.Os
+.Sh NAME
+.Nm pcaled
+.Nd Philips PCA9532/PCA9552 GPIO LED dimmer
+.Sh SYNOPSIS
+.Cd "pcaled* at iic?"
+.Cd "gpio* at pcaled?"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the Philips PCA9532 and PCA9552 GPIO controllers
+which are specifically optimized to dim LEDs in 256 discrete steps.
+.Sh SEE ALSO
+.Xr gpio 4 ,
+.Xr iic 4 ,
+.Xr intro 4 ,
+.Xr gpioctl 8
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 4.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Dale Rahn Aq Mt drahn@openbsd.org .