--- xnu/xnu-1504.15.3/iokit/Kernel/IOKitDebug.cpp
+++ xnu/xnu-792.22.5/iokit/Kernel/IOKitDebug.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1998-2011 Apple Inc. All rights reserved.
+ * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -25,6 +25,12 @@
  * 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
+/*
+ * Copyright (c) 1998 Apple Computer, Inc.  All rights reserved. 
+ *
+ * HISTORY
+ *
+ */
 
 #include <sys/sysctl.h>
 
@@ -44,28 +50,17 @@
 #endif
 
 SInt64		gIOKitDebug = DEBUG_INIT_VALUE;
-SInt64		gIOKitTrace = 0x3B;
-UInt64		gIOInterruptThresholdNS = 0;
-
-SYSCTL_QUAD(_debug, OID_AUTO, iokit, CTLFLAG_RW | CTLFLAG_LOCKED, &gIOKitDebug, "boot_arg io");
-SYSCTL_QUAD(_debug, OID_AUTO, iotrace, CTLFLAG_RW | CTLFLAG_LOCKED, &gIOKitTrace, "trace io");
-SYSCTL_QUAD(_debug, OID_AUTO, iointthreshold, CTLFLAG_RW | CTLFLAG_LOCKED, &gIOInterruptThresholdNS, "io interrupt threshold");
+SYSCTL_QUAD(_debug, OID_AUTO, iokit, CTLFLAG_RW, &gIOKitDebug, "boot_arg io");
 
 
 int 		debug_malloc_size;
 int		debug_iomalloc_size;
-
 vm_size_t	debug_iomallocpageable_size;
 int 		debug_container_malloc_size;
 // int 		debug_ivars_size; // in OSObject.cpp
 
 extern "C" {
 
-#if 0
-#define DEBG(fmt, args...)   { kprintf(fmt, ## args); }
-#else
-#define DEBG(fmt, args...)   { IOLog(fmt, ## args); }
-#endif
 
 void IOPrintPlane( const IORegistryPlane * plane )
 {
@@ -79,23 +74,23 @@
     assert( iter );
     all = iter->iterateAll();
     if( all) {
-        DEBG("Count %d\n", all->getCount() );
+        IOLog("Count %d\n", all->getCount() );
         all->release();
     } else
-	DEBG("Empty\n");
+	IOLog("Empty\n");
 
     iter->reset();
     while( (next = iter->getNextObjectRecursive())) {
-	snprintf(format + 1, sizeof(format) - 1, "%ds", 2 * next->getDepth( plane ));
-	DEBG( format, "");
-	DEBG( "\033[33m%s", next->getName( plane ));
+	sprintf( format + 1, "%ds", 2 * next->getDepth( plane ));
+	IOLog( format, "");
+	IOLog( "\033[33m%s", next->getName( plane ));
 	if( (next->getLocation( plane )))
-            DEBG("@%s", next->getLocation( plane ));
-	DEBG("\033[0m <class %s", next->getMetaClass()->getClassName());
+            IOLog("@%s", next->getLocation( plane ));
+	IOLog("\033[0m <class %s", next->getMetaClass()->getClassName());
         if( (service = OSDynamicCast(IOService, next)))
-            DEBG(", busy %ld", (long) service->getBusyState());
-	DEBG( ">\n");
-//	IOSleep(250);
+            IOLog(", busy %ld", service->getBusyState());
+	IOLog( ">\n");
+	IOSleep(250);
     }
     iter->release();
 }
@@ -142,7 +137,7 @@
 
     iter->reset();
     while( (next = iter->getNextObjectRecursive())) {
-		snprintf(format + 1, sizeof(format) - 1, "%ds", 2 * next->getDepth( plane ));
+		sprintf( format + 1, "%ds", 2 * next->getDepth( plane ));
 		dbugprintf( format, "");
 		dbugprintf( "%s", next->getName( plane ));
 		if( (next->getLocation( plane )))
@@ -208,6 +203,7 @@
     off->release();
 }
 
+
 bool IOKitDiagnostics::serialize(OSSerialize *s) const
 {
     OSDictionary * 	dict;