Sets the maximum number of busy-wait iterations which the polling driver does while waiting ... number of busy waiting iterations to wait before strobing the printer to accept a ju…tape position is not changed. MT_NO_WAIT (Default: false) Enables immediate mode ... wait for the command to finish) for some commands (e.g., rewind). An example: struct mtopAfter issuing said operation, the kernel will wait uninterruptibly for completion of the indicated requesttimeout in seconds for the driver to wait for the controller to be ready