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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 16:08:12 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 16:08:12 -0400
commitb9cde963555b6519c5dbd34a39dee3418f593437 (patch)
tree453accad3c3286e3416d4160de4a87223aff684c /static/freebsd/man4/max44009.4
parent5cb84ec742fd33f78c8022863fadaa8d0d93e176 (diff)
feat: Added FreeBSD man pages
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+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
+.\" Copyright (c) 2020 Andriy Gapon <avg@FreeBSD.org>
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd November 6, 2021
+.Dt MAX44009 4
+.Os
+.Sh NAME
+.Nm max44009
+.Nd driver for MAX44009 Ambient Light Sensor
+.Sh SYNOPSIS
+To compile this driver into the kernel,
+place the following lines in your
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device max44009"
+.Cd "device iicbus"
+.Ed
+.Pp
+Alternatively, to load the driver as a
+module at boot time, place the following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+max44009_load="YES"
+.Ed
+.Sh DESCRIPTION
+The
+.Nm
+driver reports illuminance data from MAX44009 Ambient Light Sensor.
+.Pp
+The
+.Nm
+driver reports data via
+.Xr sysctl 8
+entry in the device's node in the
+.Xr sysctl 8
+tree:
+.Bl -tag -width illuminance
+.It Va illuminance
+The illuminance, in lux units.
+.El
+.Pp
+On an
+.Xr FDT 4
+based system the following properties must be set:
+.Bl -tag -width "compatible"
+.It Va compatible
+Must be set to
+.Qq maxim,max44009 .
+.It Va reg
+The I2C address of
+.Nm
+which can be either 0x4a or 0x4b.
+.El
+.Sh SEE ALSO
+.Xr fdt 4 ,
+.Xr iicbus 4 ,
+.Xr sysctl 8
+.Sh HISTORY
+The
+.Nm
+driver and this manual page was written by
+.An Andriy Gapon Aq Mt avg@FreeBSD.org .
+.Sh BUGS
+The
+.Nm
+driver does not support illuminance thresholds and the corresponding
+interrupt.