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NeXTSTEP 3.3 (Developer)…68k, x86, SPARC, PA-RISC]
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NeXTSTEP 3.3 Dev Intel.iso
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driverkit
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devsw.h
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1993-07-30
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/* Copyright (c) 1991 NeXT Computer, Inc. All rights reserved.
*
* devsw.h - Kernel-level functions to allow adding entries
* to cdevsw, bdevsw, and vfssw.
*
* HISTORY
* 20-Jan-93 Doug Mitchell at NeXT
* Created.
*/
#import <sys/types.h>
#import <bsd/sys/conf.h>
#import <bsd/sys/vfs.h>
#import <objc/objc.h> /* for BOOL */
typedef int (*IOSwitchFunc)();
/*
* Add an entry to bdevsw. Returns the index into bdevsw at which the entry
* was created, or -1 of no space can be found.
*/
extern int IOAddToBdevswAt(
int major,
IOSwitchFunc openFunc,
IOSwitchFunc closeFunc,
IOSwitchFunc strategyFunc,
IOSwitchFunc dumpFunc,
IOSwitchFunc psizeFunc,
BOOL isTape); // TRUE if device is a tape device
extern int IOAddToBdevsw(
IOSwitchFunc openFunc,
IOSwitchFunc closeFunc,
IOSwitchFunc strategyFunc,
IOSwitchFunc dumpFunc,
IOSwitchFunc psizeFunc,
BOOL isTape); // TRUE if device is a tape device
/*
* Remove an entry from bdevsw, replace it with a null entry.
*/
extern void IORemoveFromBdevsw(int bdevswNumber);
/*
* Add an entry to cdevsw. Returns the index into cdevsw at which the entry
* was created, or -1 of no space can be found.
*/
extern int IOAddToCdevswAt(
int major,
IOSwitchFunc openFunc,
IOSwitchFunc closeFunc,
IOSwitchFunc readFunc,
IOSwitchFunc writeFunc,
IOSwitchFunc ioctlFunc,
IOSwitchFunc stopFunc,
IOSwitchFunc resetFunc,
IOSwitchFunc selectFunc,
IOSwitchFunc mmapFunc,
IOSwitchFunc getcFunc,
IOSwitchFunc putcFunc);
extern int IOAddToCdevsw(
IOSwitchFunc openFunc,
IOSwitchFunc closeFunc,
IOSwitchFunc readFunc,
IOSwitchFunc writeFunc,
IOSwitchFunc ioctlFunc,
IOSwitchFunc stopFunc,
IOSwitchFunc resetFunc,
IOSwitchFunc selectFunc,
IOSwitchFunc mmapFunc,
IOSwitchFunc getcFunc,
IOSwitchFunc putcFunc);
/*
* Remove an entry from cdevsw, replace it with a null entry.
*/
extern void IORemoveFromCdevsw(int cdevswNumber);
/*
* Add an entry to vfssw. Returns the index into vfssw at which the entry
* was created, or -1 of no space can be found.
*/
extern int IOAddToVfsswAt(
int index,
const char *vfsswName,
const struct vfsops *vfsswOps);
extern int IOAddToVfssw(
const char *vfsswName,
const struct vfsops *vfsswOps);
/*
* Remove an entry from vfssw, replace it with a null entry.
*/
extern void IORemoveFromVfssw(int vfsswNumber);