code: func (c *SCSICmd) NotHandled() SCSIResponse {
  	buf := make([]byte, tcmuSenseBufferSize)
  	buf[0] = 0x70 /* fixed, current */
  	buf[2] = 0x5  /* illegal request */
  	buf[7] = 0xa
  	buf[12] = 0x20 /* ASC: invalid command operation code */
  	buf[13] = 0x0  /* ASCQ: (none) */
  
  	return SCSIResponse{
  		id:          c.id,
  		status:      scsi.SamStatCheckCondition,
  		senseBuffer: buf,
  	}
  }
docs: // NotHandled creates a response and sense data that tells the kernel this device does not emulate this command.