acpi*.4: Update manual pages for the recent ACPI update.
[dragonfly.git] / share / man / man4 / acpi_toshiba.4
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2.\" Copyright (c) 2003 Philip Paeps <philip@FreeBSD.org>
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2f5aa587 26.\" $FreeBSD: src/share/man/man4/man4.i386/acpi_toshiba.4,v 1.7.8.1 2009/04/15 03:14:26 kensmith Exp $
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28.Dd November 11, 2009
29.Dt ACPI_TOSHIBA 4
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30.Os
31.Sh NAME
32.Nm acpi_toshiba
33.Nd Toshiba HCI interface
34.Sh SYNOPSIS
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35To compile this driver into the kernel,
36place the following line in your
37kernel configuration file:
38.Bd -ragged -offset indent
68fb0c66 39.Cd "device acpi_toshiba"
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40.Ed
41.Pp
42Alternatively, to load the driver as a
43module at boot time, place the following line in
44.Xr loader.conf 5 :
45.Bd -literal -offset indent
46acpi_toshiba_load="YES"
47.Ed
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48.Sh DESCRIPTION
49HCI is Toshiba's
50.Em "Hardware Control Interface"
51which is somewhat uniform across their models.
52The
53.Nm
54driver allows the user to manipulate HCI-controlled hardware using a number of
55.Xr sysctl 8
56variables.
2f5aa587 57.Sh SYSCTL VARIABLES
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58The following sysctls are currently implemented:
59.Bl -tag -width indent
60.It Va hw.acpi.toshiba.force_fan
61Causes active cooling to be forcibly enabled
62.Pq Ql 1
63or disabled
64.Pq Ql 0
65regardless of the current temperature.
66.It Va hw.acpi.toshiba.video_output
67Sets the active display to use according to a bitwise OR of the following:
68.Pp
69.Bl -tag -width indent -compact
70.It Li 0
71No display
72.It Li 1
73LCD
74.It Li 2
75CRT
76.It Li 4
77TV-Out
78.El
79.Pp
80Only some systems (i.e., the Libretto L5) support video switching via
81this hardware-specific driver.
82Use the
83.Xr acpi_video 4
84driver for generic video output support.
85.It Va hw.acpi.toshiba.lcd_brightness
86Makes the LCD backlight brighter or dimmer (higher values are brighter).
87.It Va hw.acpi.toshiba.lcd_backlight
88Turns the LCD backlight on and off.
89.It Va hw.acpi.toshiba.cpu_speed
90Sets the CPU speed to the specified speed.
91This provides functionality similar to the
92.Va hw.acpi.cpu.throttle_state
93variable.
94Higher sysctl values mean lower CPU speeds.
95.El
96.Pp
97Defaults for these variables can be set in
98.Xr sysctl.conf 5 ,
99which is parsed at boot-time.
2f5aa587 100.Sh LOADER TUNABLES
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101The
102.Va hw.acpi.toshiba.enable_fn_keys
103tunable enables or disables the function keys on the keyboard.
104Function keys are enabled by default.
105.Pp
106This behaviour can be changed at the
107.Xr loader 8
108prompt or in
109.Xr loader.conf 5 .
110.Sh SEE ALSO
111.Xr acpi 4 ,
112.Xr acpi_video 4 ,
113.Xr loader.conf 5 ,
114.Xr sysctl.conf 5 ,
115.Xr sysctl 8
116.Sh HISTORY
117The
118.Nm
119driver first appeared in
120.Fx 5.1 .
121.Sh AUTHORS
122.An -nosplit
123The
124.Nm
125driver was written by
126.An Hiroyuki Aizu Aq aizu@navi.org .
127This manual page was written by
128.An Philip Paeps Aq philip@FreeBSD.org .