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29 .Dt ACPI_TOSHIBA 4 i386
33 .Nd Toshiba HCI interface
35 To compile this driver into the kernel,
36 place the following line in your
37 kernel configuration file:
38 .Bd -ragged -offset indent
39 .Cd "device acpi_toshiba"
42 Alternatively, to load the driver as a
43 module at boot time, place the following line in
45 .Bd -literal -offset indent
46 acpi_toshiba_load="YES"
50 .Em "Hardware Control Interface"
51 which is somewhat uniform across their models.
54 driver allows the user to manipulate HCI-controlled hardware using a number of
58 The following sysctls are currently implemented:
59 .Bl -tag -width indent
60 .It Va hw.acpi.toshiba.force_fan
61 Causes active cooling to be forcibly enabled
65 regardless of the current temperature.
66 .It Va hw.acpi.toshiba.video_output
67 Sets the active display to use according to a bitwise OR of the following:
69 .Bl -tag -width indent -compact
80 Only some systems (i.e., the Libretto L5) support video switching via
81 this hardware-specific driver.
84 driver for generic video output support.
85 .It Va hw.acpi.toshiba.lcd_brightness
86 Makes the LCD backlight brighter or dimmer (higher values are brighter).
87 .It Va hw.acpi.toshiba.lcd_backlight
88 Turns the LCD backlight on and off.
89 .It Va hw.acpi.toshiba.cpu_speed
90 Sets the CPU speed to the specified speed.
91 This provides functionality similar to the
92 .Va hw.acpi.cpu.throttle_state
94 Higher sysctl values mean lower CPU speeds.
97 Defaults for these variables can be set in
99 which is parsed at boot-time.
102 .Va hw.acpi.toshiba.enable_fn_keys
103 tunable enables or disables the function keys on the keyboard.
104 Function keys are enabled by default.
106 This behaviour can be changed at the
119 driver first appeared in
125 driver was written by
126 .An Hiroyuki Aizu Aq aizu@navi.org .
127 This manual page was written by
128 .An Philip Paeps Aq philip@FreeBSD.org .