-SNAPSHOT_PMOPS - enable the usage of the pmops->prepare, pmops->enter and
- pmops->finish methods (the in-kernel swsusp knows these as the "platform
- method") which are needed on many machines to (among others) speed up
- the resume by letting the BIOS skip some steps or to let the system
- recognise the correct state of the hardware after the resume (in
- particular on many machines this ensures that unplugged AC
- adapters get correctly detected and that kacpid does not run wild after
- the resume). The last ioctl() argument can take one of the three
- values, defined in kernel/power/power.h:
- PMOPS_PREPARE - make the kernel carry out the
- pm_ops->prepare(PM_SUSPEND_DISK) operation
- PMOPS_ENTER - make the kernel power off the system by calling
- pm_ops->enter(PM_SUSPEND_DISK)
- PMOPS_FINISH - make the kernel carry out the
- pm_ops->finish(PM_SUSPEND_DISK) operation
-