What:		/sys/class/zram-control/
Date:		August 2015
KernelVersion:	4.2
Contact:	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Description:
		The zram-control/ class sub-directory belongs to zram
		device class

What:		/sys/class/zram-control/hot_add
Date:		August 2015
KernelVersion:	4.2
Contact:	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Description:
		RO attribute. Read operation will cause zram to add a new
		device and return its device id back to user (so one can
		use /dev/zram<id>), or error code.

What:		/sys/class/zram-control/hot_remove
Date:		August 2015
KernelVersion:	4.2
Contact:	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Description:
		WO attribute. Remove a specific /dev/zramX device, where X
		is a device_id provided by user.
