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linux-imx/Documentation/ABI/testing/sysfs-driver-intel-rapid-start
Matthew Garrett 34a956db37 Add support driver for Intel Rapid Start Technology 
Intel Rapid Start Technology is a firmware-based suspend-to-disk
implementation. Once placed in S3, the device will wake once either a
timeout elapses or the battery reaches a critical level. It will then resume
to the firmware and copy the contents of RAM to a specialised partition, and
then power off the machine. If the user turns the machine back on the
firmware will copy the contents of the partition back to RAM and then resume
from S3 as normal.

This driver provides an interface for configuring the wakeup events and
timeout. It still requires firmware support and an appropriate suspend
partition.

Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
2013-07-10 15:42:48 -04:00

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What: /sys/bus/acpi/intel-rapid-start/wakeup_events Date: July 2, 2013 KernelVersion: 3.11 Contact: Matthew Garrett mjg59@srcf.ucam.org Description: An integer representing a set of wakeup events as follows: 1: Wake to enter hibernation when the wakeup timer expires 2: Wake to enter hibernation when the battery reaches a critical level

	These values are ORed together. For example, a value of 3
	indicates that the system will wake to enter hibernation when
	either the wakeup timer expires or the battery reaches a
	critical level.

What: /sys/bus/acpi/intel-rapid-start/wakeup_time Date: July 2, 2013 KernelVersion: 3.11 Contact: Matthew Garrett mjg59@srcf.ucam.org Description: An integer representing the length of time the system will remain asleep before waking up to enter hibernation. This value is in minutes.