dcopy_device_handle_t
static void dcopy_device_cleanup(dcopy_device_handle_t device,
dcopy_device_handle_t device;
dcopy_device_handle_t *handle)
dcopy_device_unregister(dcopy_device_handle_t *handle)
dcopy_device_handle_t device;
dcopy_device_cleanup(dcopy_device_handle_t device, boolean_t do_callback)
dcopy_device_handle_t *handle);
int dcopy_device_unregister(dcopy_device_handle_t *handle);
dcopy_device_handle_t is_device_handle;