2 .\" Copyright (c) 2003 Philip Paeps <philip@FreeBSD.org>
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26 .\" $FreeBSD: src/share/man/man4/man4.i386/acpi_toshiba.4,v 1.5 2004/04/14 00:23:58 njl Exp $
27 .\" $DragonFly: src/share/man/man4/acpi_toshiba.4,v 1.1 2008/08/28 09:47:04 hasso Exp $
30 .Dt ACPI_TOSHIBA 4 i386
34 .Nd Toshiba HCI interface
36 .Cd "device acpi_toshiba"
39 .Em "Hardware Control Interface"
40 which is somewhat uniform across their models.
43 driver allows the user to manipulate HCI-controlled hardware using a number of
47 The following sysctls are currently implemented:
48 .Bl -tag -width indent
49 .It Va hw.acpi.toshiba.force_fan
50 Causes active cooling to be forcibly enabled
54 regardless of the current temperature.
55 .It Va hw.acpi.toshiba.video_output
56 Sets the active display to use according to a bitwise OR of the following:
58 .Bl -tag -width indent -compact
69 Only some systems (i.e., the Libretto L5) support video switching via
70 this hardware-specific driver.
73 driver for generic video output support.
74 .It Va hw.acpi.toshiba.lcd_brightness
75 Makes the LCD backlight brighter or dimmer (higher values are brighter).
76 .It Va hw.acpi.toshiba.lcd_backlight
77 Turns the LCD backlight on and off.
78 .It Va hw.acpi.toshiba.cpu_speed
79 Sets the CPU speed to the specified speed.
80 This provides functionality similar to the
81 .Va hw.acpi.cpu.throttle_state
83 Higher sysctl values mean lower CPU speeds.
86 Defaults for these variables can be set in
88 which is parsed at boot-time.
91 .Va hw.acpi.toshiba.enable_fn_keys
92 tunable enables or disables the function keys on the keyboard.
93 Function keys are enabled by default.
95 This behaviour can be changed at the
108 driver first appeared in
114 driver was written by
115 .An Hiroyuki Aizu Aq aizu@navi.org .
116 This manual page was written by
117 .An Philip Paeps Aq philip@FreeBSD.org .