Intel Rapid Start Technology Driver

modulename: intel-rst.ko

configname: CONFIG_INTEL_RST

Linux Kernel Configuration
└─>Device Drivers
└─>X86 Platform Specific Device Drivers
└─>Intel Rapid Start Technology Driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This driver provides support for modifying parameters on systems
equipped with Intel's Rapid Start Technology. When put in an ACPI
sleep state, these devices will wake after either a configured
timeout or when the system battery reaches a critical state,
automatically copying memory contents to disk. On resume, the
firmware will copy the memory contents back to RAM and resume the OS
as usual.

source code: