Source to iokit/Families/IOHIDSystem/IOHIDDescriptorParser/HIDProcessMainItem.c

/*
 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
	File:		HIDProcessMainItem.c

	Contains:	xxx put contents here xxx

	Version:	xxx put version here xxx

	Copyright:	� 1999 by Apple Computer, Inc., all rights reserved.

	File Ownership:

		DRI:				xxx put dri here xxx

		Other Contact:		xxx put other contact here xxx

		Technology:			xxx put technology here xxx

	Writers:

		(BWS)	Brent Schorsch

	Change History (most recent first):

	  <USB1>	  3/5/99	BWS		first checked in
*/

#include "HIDLib.h"

/*
 *------------------------------------------------------------------------------
 *
 * HIDProcessMainItem - Process a MainItem
 *
 *	 Input:
 *			  ptDescriptor			- The Descriptor Structure
 *			  ptPreparsedData		- The PreParsedData Structure
 *	 Output:
 *			  ptDescriptor			- The Descriptor Structure
 *			  ptPreparsedData		- The PreParsedData Structure
 *	 Returns:
 *			  kHIDSuccess		   - Success
 *			  kHIDNullPointerErr	  - Argument, Pointer was Null
 *
 *------------------------------------------------------------------------------
*/
OSStatus HIDProcessMainItem(HIDReportDescriptor *ptDescriptor,
								 HIDPreparsedDataPtr ptPreparsedData)
{
	OSStatus iStatus = kHIDSuccess;
	
/*
 *	Disallow NULL Pointers
*/
	if ((ptDescriptor == NULL) || (ptPreparsedData == NULL))
		return kHIDNullPointerErr;
/*
 *	Process by MainItem Tag
*/
	switch (ptDescriptor->item.tag)
	{
		case kHIDTagCollection:
			iStatus = HIDProcessCollection(ptDescriptor,ptPreparsedData);
			break;
		case kHIDTagEndCollection:
			iStatus = HIDProcessEndCollection(ptDescriptor,ptPreparsedData);
			break;
		case kHIDTagInput:
		case kHIDTagOutput:
		case kHIDTagFeature:
			iStatus = HIDProcessReportItem(ptDescriptor,ptPreparsedData);
			break;
	}
	return iStatus;
}