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.