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Command: acpisurface | Section: 4 | Source: OpenBSD | File: acpisurface.4
ACPISURFACE(4) FreeBSD Kernel Interfaces Manual ACPISURFACE(4)
NAME
acpisurface - Microsoft Surface Book ACPI support
SYNOPSIS
acpisurface* at acpi?
DESCRIPTION
The acpisurface driver provides ACPI support for Microsoft Surface Book
laptops. It responds to various button presses such as volume up/down
and power buttons, all of which are located on the top of the
tablet/detachable display. It does not provide support for the hotkeys
in the keyboard/base unit.
Volume up/down button presses are routed to the master system mixer via
the wscons(4) subsystem. Power button presses result in a soft power off
request being queued by the acpi(4) subsystem.
SEE ALSO
acpi(4), audio(4), wscons(4)
HISTORY
The acpisurface driver first appeared in OpenBSD 6.4.
FreeBSD 14.1-RELEASE-p8 July 1, 2018 FreeBSD 14.1-RELEASE-p8