A fast and easily customised operating system
for ARM devices
IOCtl Parameter Block
Programmer's Reference Manuals
» Part 15 – SWI Calls
» OS
» OS_Args
» OS_Args 9
» IOCtl Parameter Block
| Offset | Contents |
|---|---|
| +0-1 | IOCtl Reason Codes |
| +2 | IOCtl group code |
| +3 | Bit 6 = read flag, Bit7 = write flag |
| +4-7 | Data to read or write |