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Annotation of XNU/iokit/Families/IOHIDSystem/IOHIDDescriptorParser/HIDProcessMainItem.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /*
                     23:        File:           HIDProcessMainItem.c
                     24: 
                     25:        Contains:       xxx put contents here xxx
                     26: 
                     27:        Version:        xxx put version here xxx
                     28: 
                     29:        Copyright:      � 1999 by Apple Computer, Inc., all rights reserved.
                     30: 
                     31:        File Ownership:
                     32: 
                     33:                DRI:                            xxx put dri here xxx
                     34: 
                     35:                Other Contact:          xxx put other contact here xxx
                     36: 
                     37:                Technology:                     xxx put technology here xxx
                     38: 
                     39:        Writers:
                     40: 
                     41:                (BWS)   Brent Schorsch
                     42: 
                     43:        Change History (most recent first):
                     44: 
                     45:          <USB1>          3/5/99        BWS             first checked in
                     46: */
                     47: 
                     48: #include "HIDLib.h"
                     49: 
                     50: /*
                     51:  *------------------------------------------------------------------------------
                     52:  *
                     53:  * HIDProcessMainItem - Process a MainItem
                     54:  *
                     55:  *      Input:
                     56:  *                       ptDescriptor                  - The Descriptor Structure
                     57:  *                       ptPreparsedData               - The PreParsedData Structure
                     58:  *      Output:
                     59:  *                       ptDescriptor                  - The Descriptor Structure
                     60:  *                       ptPreparsedData               - The PreParsedData Structure
                     61:  *      Returns:
                     62:  *                       kHIDSuccess              - Success
                     63:  *                       kHIDNullPointerErr      - Argument, Pointer was Null
                     64:  *
                     65:  *------------------------------------------------------------------------------
                     66: */
                     67: OSStatus HIDProcessMainItem(HIDReportDescriptor *ptDescriptor,
                     68:                                                                 HIDPreparsedDataPtr ptPreparsedData)
                     69: {
                     70:        OSStatus iStatus = kHIDSuccess;
                     71:        
                     72: /*
                     73:  *     Disallow NULL Pointers
                     74: */
                     75:        if ((ptDescriptor == NULL) || (ptPreparsedData == NULL))
                     76:                return kHIDNullPointerErr;
                     77: /*
                     78:  *     Process by MainItem Tag
                     79: */
                     80:        switch (ptDescriptor->item.tag)
                     81:        {
                     82:                case kHIDTagCollection:
                     83:                        iStatus = HIDProcessCollection(ptDescriptor,ptPreparsedData);
                     84:                        break;
                     85:                case kHIDTagEndCollection:
                     86:                        iStatus = HIDProcessEndCollection(ptDescriptor,ptPreparsedData);
                     87:                        break;
                     88:                case kHIDTagInput:
                     89:                case kHIDTagOutput:
                     90:                case kHIDTagFeature:
                     91:                        iStatus = HIDProcessReportItem(ptDescriptor,ptPreparsedData);
                     92:                        break;
                     93:        }
                     94:        return iStatus;
                     95: }

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