ACPISURFACE(4) - Device Drivers Manual #
ACPISURFACE(4) - Device Drivers Manual
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 #
HISTORY #
The acpisurface driver first appeared in OpenBSD 6.4.
OpenBSD 7.5 - July 1, 2018