.\" Copyright (c) 2013 Takanori Watanabe
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.\" $FreeBSD$
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.Dd May 8, 2013
.Dt ACPI_RAPIDSTART 4
.Os
.Sh NAME
.Nm acpi_rapidstart
.Nd "Intel rapid start technology ACPI driver"
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following line in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device acpi_rapidstart"
.Ed
.Pp
Alternatively, to load the driver as a
module at boot time, place the following line in
.Xr loader.conf 5 :
.Bd -literal -offset indent
acpi_rapidstart_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
driver provides support for Intel Rapid Start technology ACPI device interface.
Note that this is only for the ACPI device interface.
This has _CID PNP0C02 so it should be loaded at boot time to avoid attaching
to the acpi_sysresource driver.
.Sh SYSCTLS
The following
.Xr sysctl 8
nodes are currently implemented:
.Bl -tag -width indent
.It Va dev.acpi_rapidstart.0.ffs
Rapid start flag.
It is a bitwise OR of the following:
.Pp
.Bl -tag -width indent-two -compact
.It Li 1
Enter Fast Flash Standby in RTC wake.
.It Li 2
Enter Fast Flash Standby in Critical Battery Wake enable
.El
.It Va dev.acpi_rapidstart.0.ftv
Fast Flash Standby timer value in minutes.
.El
.Sh SEE ALSO
.Xr acpi 4 ,
.Xr sysctl 8
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 10.0 .
.Sh AUTHORS
The
.Nm
driver was written by
.An Takanori Watanabe Aq Mt takawata@FreeBSD.org .