e676955476
too, so, instead of descending to the i386 directory, we add some magic to the parent Makefile. These man pages refer to drivers that I'm aware that work on amd64. Most likely there are more, but I'll deal with them later. Approved by: brueffer, philip, takawata
179 lines
4.9 KiB
Groff
179 lines
4.9 KiB
Groff
.\"
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.\" Copyright (c) 2004 OGAWA Takaya <t-ogawa@triaez.kaisei.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd July 11, 2004
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.Dt ACPI_PANASONIC 4 i386
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.Os
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.Sh NAME
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.Nm acpi_panasonic
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.Nd "ACPI hotkey driver for Panasonic laptops"
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following line in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device acpi_panasonic"
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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acpi_panasonic_load="YES"
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.Ed
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.Sh DESCRIPTION
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The
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.Nm
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driver enables such hotkey facilities of various Panasonic laptops as
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changing LCD brightness, controlling mixer volumes, entering sleep or
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suspended state and so on.
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On the following models it is reported to work: Let's note (or
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Toughbook, outside Japan) CF-R1N, CF-R2A and CF-R3.
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It may also work on other models as well.
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.Pp
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The driver consists of three functionalities.
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The first is to detect hotkey events and take corresponding actions,
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which include changing LCD luminance and speaker mute state.
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The second role is to notify occurrences of the event by way of
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.Xr devctl 4
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and eventually to
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.Xr devd 8 .
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The third and last is to provide a way to adjust LCD brightness and
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sound mute state via
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.Xr sysctl 8 .
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.Ss Hotkeys
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There are 9 hotkeys available on the supported hardwares:
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.Pp
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.Bl -tag -compact -offset indent
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.It Sy Fn+F1
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Make LCD backlight darker.
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.It Sy Fn+F2
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Make LCD backlight brighter.
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.It Sy Fn+F3
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Switch video output between LCD and CRT.
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Not supported by the
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.Nm
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driver.
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.It Sy Fn+F4
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Toggle muting the speaker.
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.It Sy Fn+F5
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Turn the mixer volume down.
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.It Sy Fn+F6
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Turn the mixer volume up.
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.It Sy Fn+F7
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Enter suspend-to-RAM state.
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.It Sy Fn+F9
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Show battery status.
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.It Sy Fn+F10
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Enter suspend-to-disk state.
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.El
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.Pp
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Actions are automatically taken within the driver for
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.Sy Fn+F1 , Fn+F2
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and
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.Sy Fn+F4 .
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For the other events such as
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mixer control and showing battery status,
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.Xr devd 8
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should take the role as described below.
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.Ss Xr devd 8 Ss Events
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When notified to
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.Xr devd 8 ,
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the hotkey event provides the following information:
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.Pp
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.Bl -tag -compact -offset indent
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.It system
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.Qq Li ACPI
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.It subsystem
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.Qq Li Panasonic
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.It type
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The source of the event in ACPI namespace.
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The value depends on the model but typically
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.Qq Li \e_SB_.HKEY .
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.It notify
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Event code (see below).
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.El
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.Pp
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Event codes to be generated are assigned as follows:
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.Bl -tag -offset indent
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.It 0x81-0x86, 0x89
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.Sy Fn+F<n>
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pressed.
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0x81 corresponds to
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.Sy Fn+F1 ,
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0x82 corresponds to
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.Sy Fn+F2 ,
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and so on.
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.It 0x01-0x07, 0x09, 0x1a
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.Sy Fn+F<n>
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released.
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0x01 corresponds to
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.Sy Fn+F1 ,
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0x02 corresponds to
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.Sy Fn+F2 ,
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and so on.
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.El
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.Sh SYSCTL VARIABLES
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The following MIBs are available:
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.Bl -tag -width indent
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.It Va hw.acpi.panasonic.lcd_brightness_max
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The maximum level of brightness.
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The value is read only and
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automatically set according to hardware model.
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.It Va hw.acpi.panasonic.lcd_brightness_max
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The minimum level of brightness.
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The value is read only and
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automatically set according to hardware model.
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.It Va hw.acpi.panasonic.lcd_brightness
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Current brightness level of the LCD (read-write).
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The value ranges from
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.Va hw.acpi.panasonic.lcd_brightness_min
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to
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.Va hw.acpi.panasonic.lcd_brightness_max .
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.It Va hw.acpi.panasonic.sound_mute
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A read-write boolean flag to control whether to mute the speaker.
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The value 1 means to mute and 0 not.
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.El
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.Sh SEE ALSO
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.Xr acpi 4 ,
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.Xr devd.conf 5 ,
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.Xr devd 8 ,
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.Xr sysctl 8
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Fx 5.3 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver and this manual page were written by
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.An OGAWA Takaya Aq t\-ogawa@triaez.kaisei.org
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and
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.An TAKAHASHI Yoshihiro Aq nyan@FreeBSD.org .
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