$OpenBSD: acpisurface.4,v 1.2 2018/07/01 05:47:16 jmc Exp $

Copyright (c) 2018 Mike Larkin <mlarkin@openbsd.org>

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.Dd $Mdocdate: June 30 2018 $ .Dt ACPISURFACE 4 .Os .Sh NAME .Nm acpisurface .Nd Microsoft Surface Book ACPI support .Sh SYNOPSIS .Cd "acpisurface* at acpi?" .Sh DESCRIPTION The .Nm 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.

p Volume up/down button presses are routed to the master system mixer via the .Xr wscons 4 subsystem. Power button presses result in a soft power off request being queued by the .Xr acpi 4 subsystem. .Sh SEE ALSO .Xr acpi 4 , .Xr audio 4 , .Xr wscons 4 .Sh HISTORY The .Nm driver first appeared in .Ox 6.4 .