IOCtl Reason Codes (changes)
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Programmer's OS Reference SWI Manuals Calls
» Part OS_Args 15 – SWI Calls
» OS OS_Args 9
» OS_Args IOCtl Parameter Block
» IOCtl Reason CodesOS_Args 9
» IOCtl Parameter Block
» IOCtl Reason Codes
IOCtl Group Code = 0 Reason Codes.
Data width 4 bytes unless noted otherwise.
| Reason | Description |
|---|---|
| 1 | Set/read baud rate |
| 2 | Set/read data format |
| 3 | Set/read handshaking |
| 4 | Set/read buffer rate |
| 5 | Set/read buffer thresholds |
| 6 | Set/read control lines |
| 7 | Set/read FIFO trigger level |
| 8 | Read number of supported baud rates |
| 9 | Read baud rate index data |
IOCtl Group Code = 0xff Reason Codes – FS specific.
Data width 4 bytes unless noted otherwise.
DeviceFS Reason codes
| Reason | Description | Data value | Notes |
|---|---|---|---|
| 1 | Set/Read Non-blocking I/O | 1 = set 0 = unset |
|
| 4 | Set/Read Sleeping I/O | 1 = set 0 = unset |
For use in task windows. Calls UpCall 6. |
| 5 | Set/Read Sleeping I/O Timeout | 0 = no timeout timeout in cs |
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