#ifndef _LINUX_SUSPEND_IOCTLS_H
  #define _LINUX_SUSPEND_IOCTLS_H

  #include <linux/types.h>

  /*
   * This structure is used to pass the values needed for the identification
   * of the resume swap area from a user space to the kernel via the
   * SNAPSHOT_SET_SWAP_AREA ioctl
   */
  struct resume_swap_area {

  	__kernel_loff_t offset;
  	__u32 dev;

  } __attribute__((packed));
  
  #define SNAPSHOT_IOC_MAGIC	'3'
  #define SNAPSHOT_FREEZE			_IO(SNAPSHOT_IOC_MAGIC, 1)
  #define SNAPSHOT_UNFREEZE		_IO(SNAPSHOT_IOC_MAGIC, 2)
  #define SNAPSHOT_ATOMIC_RESTORE		_IO(SNAPSHOT_IOC_MAGIC, 4)
  #define SNAPSHOT_FREE			_IO(SNAPSHOT_IOC_MAGIC, 5)
  #define SNAPSHOT_FREE_SWAP_PAGES	_IO(SNAPSHOT_IOC_MAGIC, 9)
  #define SNAPSHOT_S2RAM			_IO(SNAPSHOT_IOC_MAGIC, 11)
  #define SNAPSHOT_SET_SWAP_AREA		_IOW(SNAPSHOT_IOC_MAGIC, 13, \
  							struct resume_swap_area)

  #define SNAPSHOT_GET_IMAGE_SIZE		_IOR(SNAPSHOT_IOC_MAGIC, 14, __kernel_loff_t)

  #define SNAPSHOT_PLATFORM_SUPPORT	_IO(SNAPSHOT_IOC_MAGIC, 15)
  #define SNAPSHOT_POWER_OFF		_IO(SNAPSHOT_IOC_MAGIC, 16)
  #define SNAPSHOT_CREATE_IMAGE		_IOW(SNAPSHOT_IOC_MAGIC, 17, int)
  #define SNAPSHOT_PREF_IMAGE_SIZE	_IO(SNAPSHOT_IOC_MAGIC, 18)

  #define SNAPSHOT_AVAIL_SWAP_SIZE	_IOR(SNAPSHOT_IOC_MAGIC, 19, __kernel_loff_t)
  #define SNAPSHOT_ALLOC_SWAP_PAGE	_IOR(SNAPSHOT_IOC_MAGIC, 20, __kernel_loff_t)

  #define SNAPSHOT_IOC_MAXNR	20
  
  #endif /* _LINUX_SUSPEND_IOCTLS_H */