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acpidalb(4) [netbsd man page]

ACPIDALB(4)						   BSD Kernel Interfaces Manual 					       ACPIDALB(4)

acpidalb -- Direct Application Launch Buttons SYNOPSIS
acpidalb* at acpi? DESCRIPTION
This driver provides support for PNP0C32 ACPI hotkeys a.k.a. ``The Direct Application Launch Buttons''. These are recognized on startup from system-wake or at runtime. Behaviour may differ from the standard specification in relation to the ACPI implementation. The hotkeys are reported to the power management daemon as hotkey_button. SEE ALSO
acpi(4), powerd(8) The PNP0C32 specification is described in: Microsoft Corporation, Direct Application Launch from System Startup on Windows Vista,, October 26, 2006. HISTORY
The acpidalb driver appeared in NetBSD 5.0. AUTHORS
This driver was written for NetBSD by Christoph Egger. BSD
May 18, 2008 BSD

Check Out this Related Man Page

ACPIVGA(4)						   BSD Kernel Interfaces Manual 						ACPIVGA(4)

acpivga -- ACPI Display Adapter and Output Devices SYNOPSIS
acpivga* at acpi? acpiout* at acpivga? DESCRIPTION
The acpivga driver provides generic support for brightness control and output switching, through ACPI video extensions. The ACPI specifica- tion requires that systems containing a built-in display adapter implement these extensions in their ACPI BIOS. The driver handles brightness hotkeys and display switch hotkeys. In addition, the following sysctl(8) read/write variables are provided (when hardware support is available): hw.acpi.acpivga0.bios_switch BIOS output switching policy. This boolean variable controls the behavior of the BIOS when a display switch hotkey is pressed. 1 the BIOS should automatically switch outputs, with no interaction from acpivga. 0 the BIOS should only notify acpivga of the desired output state changes. hw.acpi.acpiout0.brightness Brightness level. This integer variable typically ranges from 0 to 100, but any integer value is accepted (the driver uses the clos- est brightness level supported by the device). Please note, however, that future versions of acpivga may remove these sysctl(8) variables without prior notice. SEE ALSO
acpi(4), vga(4), sysctl(8) Microsoft Corporation, Mobile System Displays and Windows, Version 1.2c,, December 4, 2001. HISTORY
The acpivga driver appeared in NetBSD 6.0. AUTHORS
Gregoire Sutre <> CAVEATS
The acpivga driver only supports PCI/PCI-X/PCI-E display adapters. Many ACPI BIOSes implement only part of the ACPI video extensions. In particular, display output switching via these extensions often does not work. For this reason, acpivga enables hw.acpi.acpivga0.bios_switch by default. If the display switch hotkey does not work with this default setting, try setting hw.acpi.acpivga0.bios_switch to 0. Brightness level should be controlled via wsconsctl(8) instead of sysctl(8). BSD
October 28, 2010 BSD
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