| Function | Purpose |
|---|---|
| SetBaudRate | Sets the baud rate (bps) |
| SetParityDataStop | Change parity, data bits, stop bit settings |
| SetBufferSizes | Change input/output buffer sizes used by Windows |
| SetReadTimeouts | Change the read timeouts |
| SetWriteTimeouts | Change the write timeouts |
| SetCommMask | Specify which set of comm events to monitor |