Copyright (c) 2006 Alexander Yurchenko <grange@openbsd.org>
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.Dd $Mdocdate$ .Dt ACPI 4 .Os .Sh NAME .Nm acpi .Nd Advanced Configuration and Power Interface .Sh SYNOPSIS .Cd "acpi0 at mainbus?"
p .Cd "option ACPIVERBOSE" .Cd "option ACPI_ENABLE" .Sh DESCRIPTION The .Nm 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.
p If the configuration option .Dq Dv ACPIVERBOSE is set, information about all detected ACPI devices will be displayed on boot.
p If the configuration option .Dq Dv ACPI_ENABLE is set, the .Nm driver will take control of ACPI from the firmware (BIOS). WARNING: this may cause an overheating on some machines since .Nm doesn't provide any thermal or cooling control.
p The following devices can attach to .Nm :
p l -tag -width "acpitimer(4)XXX" -offset indent -compact t Xr acpiac 4 ACPI AC adapter t Xr acpibat 4 ACPI control method battery t Xr acpibtn 4 ACPI button t Xr acpicpu 4 ACPI processor power and performance state t Xr acpidock 4 ACPI docking station t Xr acpiec 4 ACPI embedded controller t Xr acpihpet 4 ACPI high precision event timer t Xr acpimadt 4 ACPI APIC configuration t Xr acpiprt 4 ACPI PCI routing table configuration t Xr acpitimer 4 ACPI power management timer t Xr acpitz 4 ACPI thermal zone .El .Sh SEE ALSO .Xr intro 4 .Sh HISTORY The .Nm driver first appeared in .Ox 3.8 . .Sh AUTHORS .An -nosplit The .Nm driver was written by .An Thorsten Lockert Aq tholo@sigmasoft.com and .An Jordan Hargrave Aq jordan@openbsd.org .