What: /sys/class/zram-control/ Date: August 2015 KernelVersion: 4.2 Contact: Sergey Senozhatsky 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 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), or error code. What: /sys/class/zram-control/hot_remove Date: August 2015 KernelVersion: 4.2 Contact: Sergey Senozhatsky Description: WO attribute. Remove a specific /dev/zramX device, where X is a device_id provided by user.