1.\" $NetBSD: battery_pmu.4,v 1.5 2009/05/18 14:41:41 wiz Exp $ 2.\" 3.\" Copyright (c) 2007 4.\" Michael Lorenz. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 15.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25.\" SUCH DAMAGE. 26.\" 27.Dd May 18, 2009 28.Dt BATTERY_PMU 4 29.Os 30.Sh NAME 31.Nm battery_pmu 32.Nd support for batteries and sensors in PCI-based Apple Powerbooks 33.Sh SYNOPSIS 34.Cd "battery* at pmu?" 35.Sh DESCRIPTION 36The 37.Nm 38driver provides support for batteries and hardware sensors found 39in first generation PCI-based PowerBooks (i.e. Apple Powerbook 402400, 3400 and 3500 (also known as Original PowerBook G3). 41Currently it only exports a few sensors via the 42.Xr envsys 4 43interface, including battery charge, voltage, CPU and battery 44temperature and AC power availability. 45.Sh SEE ALSO 46.Xr envsys 4 , 47.Xr pmu 4 , 48.Xr envstat 8 49.Sh BUGS 50There is no APM emulation right now and the battery current sensor 51may return misleading or wrong data. 52This driver is considered preliminary and may be replaced at some 53point. 54