ABL(4) - Device Drivers Manual # ABL(4) - Device Drivers Manual
NAME # abl - Apple backlight support
SYNOPSIS # abl* at acpi?
DESCRIPTION # The abl driver enables access to the backlight found in Intel based Apple iMac computers. It provides brightness control using the wsconsctl(8) variable display.brightness.
SEE ALSO # acpi(4), intro(4), wsconsctl(8)
HISTORY # The abl driver first appeared in OpenBSD 6.8.
AUTHORS # The abl driver was written by Marcus Glocker <mglocker@openbsd.
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ACPI(4) - Device Drivers Manual # ACPI(4) - Device Drivers Manual
NAME # acpi - Advanced Configuration and Power Interface
SYNOPSIS # acpi0 at bios?
DESCRIPTION # The acpi driver provides basic support for ACPI including loading ACPI tables from the firmware, parsing and interpreting AML code, event handling, suspending and powering off, and attaching device drivers. Userland may access acpi by using the apm(4) device.
The following devices can attach to acpi:
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ACPIAC(4) - Device Drivers Manual # ACPIAC(4) - Device Drivers Manual
NAME # acpiac - ACPI AC adapter
SYNOPSIS # acpiac* at acpi?
DESCRIPTION # The acpiac driver supports ACPI AC Adapters. Information about AC power source status (connected or disconnected) is available through this driver as a sensor. AC power source status is updated via an event when a change happens, if the implementation supports it. The sensors provided by acpiac can be monitored using sysctl(8) or sensorsd(8).
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ACPIALS(4) - Device Drivers Manual # ACPIALS(4) - Device Drivers Manual
NAME # acpials - ACPI ambient light sensor
SYNOPSIS # acpials* at acpi?
DESCRIPTION # The acpials driver supports ACPI ambient light sensor devices and provides information about the ambient light environment in which the system is currently operating. Ambient light illuminance is read every second and can be monitored using sysctl(8) or sensorsd(8).
SEE ALSO # acpi(4), sensorsd(8), sysctl(8)
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ACPIASUS(4) - Device Drivers Manual # ACPIASUS(4) - Device Drivers Manual
NAME # acpiasus - ASUS ACPI hotkeys
SYNOPSIS # acpiasus* at acpi?
DESCRIPTION # The acpiasus driver provides support for the ACPI based hotkeys found in many ASUS laptops, including the ASUS EeePC.
SEE ALSO # acpi(4), intro(4)
HISTORY # The acpiasus driver first appeared in OpenBSD 4.4.
AUTHORS # The acpiasus driver was written by Jared D. McNeill and was ported to OpenBSD by Joel Sing <jsing@openbsd.
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ACPIBAT(4) - Device Drivers Manual # ACPIBAT(4) - Device Drivers Manual
NAME # acpibat - ACPI control method battery
SYNOPSIS # acpibat* at acpi?
DESCRIPTION # The acpibat driver supports the ACPI Control Method Battery interface between the battery and the host. Information about the battery, such as capacity, recharge rate, voltage, and serial number, is available through this driver. Battery status is updated through an event triggered when a battery changes state (such as starting to charge) and, as a failsafe if the system does not support passing such events, every 10 seconds.
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ACPIBTN(4) - Device Drivers Manual # ACPIBTN(4) - Device Drivers Manual
NAME # acpibtn - ACPI button
SYNOPSIS # acpibtn* at acpi?
DESCRIPTION # The acpibtn driver handles events triggered by ACPI buttons. Currently, only power button, sleep button and lid status events are supported.
The power button event is handled according to the machdep.pwraction sysctl(8). Valid values are:
0
Do nothing.
1
Perform a regular system shutdown and power off the machine if the hw.
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ACPICBKBD(4) - Device Drivers Manual # ACPICBKBD(4) - Device Drivers Manual
NAME # acpicbkbd - Chromebook keyboard backlight
SYNOPSIS # acpicbkbd* at acpi?
DESCRIPTION # The acpicbkbd driver enables adjustment of the keyboard backlight level on Chromebook laptops with supported hardware. Backlight levels can be retrieved and modified with the wsconsctl(8) variable keyboard.backlight.
SEE ALSO # acpi(4), wsconsctl(8)
HISTORY # The acpicbkbd driver first appeared in OpenBSD 6.0.
AUTHORS # The acpicbkbd driver was written by joshua stein <jcs@openbsd.
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ACPICPU(4) - Device Drivers Manual # ACPICPU(4) - Device Drivers Manual
NAME # acpicpu - ACPI processor power and performance state
SYNOPSIS # acpicpu* at acpi?
DESCRIPTION # The acpicpu driver provides support for extracting processor power and performance levels from ACPI tables. This information is used to enter deeper CPU power states when idle, and can be used to throttle processor speed to reduce power usage and extend battery life through the hw.
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ACPIDOCK(4) - Device Drivers Manual # ACPIDOCK(4) - Device Drivers Manual
NAME # acpidock - ACPI docking station
SYNOPSIS # acpidock* at acpi?
DESCRIPTION # The acpidock driver supports ACPI docking stations. Docking stations are units that, for example, laptops may attach to in order to expose a number of additional hardware devices. The acpidock driver handles docking and undocking machines to gracefully detach external devices.
When docking and undocking, an event is passed to the driver which is then reacted upon.
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