OS_FSControl 21 (changes)
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Programmer's OS Reference SWI Manuals Calls
» Part OS_FSControl 15 – SWI Calls
» OS_FSControl 21OS
» OS_FSControl
» OS_FSControl 21
OS_ FSControl 21
(SWI &29)
| Entry | |
|---|---|
| R0 | 21 (&15) |
| R1 | file handle |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Filing system file handle |
| R2 | Filing system information word |
Use
The purpose of this call is to return the internal file handle for a filing system.
Notes
This SWI returns the internal file handle (as returned by FSEntry_Open) for a given file handle. If the fileswitch handle is invalid R1=0 on return.
This SWI should only be used to implement a filing system.
See also
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