#ifndef __NVKM_DEVICE_CTRL_H__
  #define __NVKM_DEVICE_CTRL_H__
  #define nvkm_control(p) container_of((p), struct nvkm_control, object)
  #include <core/device.h>
  
  struct nvkm_control {
  	struct nvkm_object object;
  	struct nvkm_device *device;
  };
  
  extern const struct nvkm_device_oclass nvkm_control_oclass;
  #endif