** being transferred from the write queue into the transmit packets
** (add_transmit) and no furthur transmit interrupt will be sent for that
** data. The next interrupt will occur up to 500ms later (RIOIntr is called
- ** twice a second as a saftey measure). This was the case when kermit was
+ ** twice a second as a safety measure). This was the case when kermit was
** used to send data into a RIO port. After each packet was sent, TCFLSH
** was called to flush the read queue preemptively. PortP->InUse was
** incremented, thereby blocking the 6 byte acknowledgement packet