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/* Copyright (c) 1993 NeXT Computer, Inc. All rights reserved.
*
* IODeviceMaster class description.
*
* HISTORY
* 08-Jan-93 Doug Mitchell at NeXT
* Created.
*/
#ifndef KERNEL
#import <objc/Object.h>
#import <driverkit/driverTypes.h>
#import <mach/port.h>
/*
* IODeviceMaster class. Used in user space only, to do Get/Set parameter
* type operations.
*
* General return values for all methods in this class which return an
* IOReturn:
*
* IO_R_NO_DEVICE - IOObjectNumber out of range of known device objects.
* IO_R_OFFLINE - invalid IOObjectNumber, but not out of range. There
* can be 'holes' in the IOObjectNumber space; IO_R_OFFLINE
* indicates an IOObjectNumber assicated with such a
* non-existent device object.
*
* All other return codes are device-specific.
*/
@interface IODeviceMaster : Object
{
@private
port_t _deviceMasterPort;
int _IODeviceMaster_reserved[4];
}
/*
* Obtain an instance of IODeviceMaster.
*/
+ new;
/*
* Free an instance of IODeviceMaster.
*/
- free;
/*
* Get device type and device name for specified IOObjectNumber.
*/
- (IOReturn)lookUpByObjectNumber : (IOObjectNumber)objectNumber
deviceKind : (IOString *)deviceKind
deviceName : (IOString *)deviceName;
/*
* Get IOObjectNumber and device type for specified deviceName.
*/
- (IOReturn)lookUpByDeviceName : (IOString)deviceName
objectNumber : (IOObjectNumber *)objectNumber
deviceKind : (IOString *)deviceKind;
/*
* Get/set parameter methods used at user level to communicate with
* kernel-level drivers.
*/
- (IOReturn)getIntValues : (unsigned *)parameterArray
forParameter : (IOParameterName)parameterName
objectNumber : (IOObjectNumber)objectNumber
count : (unsigned *)count; /* in/out*/
- (IOReturn)getCharValues : (unsigned char *)parameterArray
forParameter : (IOParameterName)parameterName
objectNumber : (IOObjectNumber)objectNumber
count : (unsigned *)count; /* in/out*/
- (IOReturn)setIntValues : (unsigned *)parameterArray
forParameter : (IOParameterName)parameterName
objectNumber : (IOObjectNumber)objectNumber
count : (unsigned)count;
- (IOReturn)setCharValues : (unsigned char *)parameterArray
forParameter : (IOParameterName)parameterName
objectNumber : (IOObjectNumber)objectNumber
count : (unsigned)count;
@end /* IODeviceMaster */
#endif
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