IOHIDLibFactory.mm   [plain text]

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#include <TargetConditionals.h>

#include <IOKit/hid/IOHIDDevicePlugIn.h>
#include <IOKit/hid/IOHIDServicePlugIn.h>
#include "IOHIDIUnknown.h"
#import "IOHIDDeviceClass.h"
#import "IOHIDObsoleteDeviceClass.h"
#import "IOHIDUPSClass.h"
#include "IOHIDEventServiceFastPathClass.h"

extern "C" void *IOHIDLibFactory(CFAllocatorRef allocator __unused, CFUUIDRef typeID);

void *IOHIDLibFactory(CFAllocatorRef allocator __unused, CFUUIDRef typeID)
{
IOCFPlugInInterface **interface = NULL;

if (CFEqual(typeID, kIOHIDDeviceUserClientTypeID)) {
IOHIDObsoleteDeviceClass *device = [[IOHIDObsoleteDeviceClass alloc] init];
[device queryInterface:CFUUIDGetUUIDBytes(kIOHIDDeviceInterfaceID)
outInterface:(LPVOID *)&interface];
} else if (CFEqual(typeID, kIOHIDDeviceTypeID)) {
IOHIDDeviceClass *device = [[IOHIDDeviceClass alloc] init];
[device queryInterface:CFUUIDGetUUIDBytes(kIOHIDDeviceDeviceInterfaceID)
outInterface:(LPVOID *)&interface];
} else if (CFEqual(typeID, kIOUPSPlugInTypeID)) {
IOHIDUPSClass *ups = [[IOHIDUPSClass alloc] init];
[ups queryInterface:CFUUIDGetUUIDBytes(kIOCFPlugInInterfaceID)
outInterface:(LPVOID *)&interface];
} else if (CFEqual(typeID, kIOHIDServiceFastPathPlugInTypeID)) {
interface = IOHIDEventServiceFastPathClass::alloc();
}

return (void *)interface;
}