USB-HID product name在C++下如何读取?

op20131120 2017-07-07 09:34:35
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1. USB Basics 1 What USB Can Do 2 Benefits for Users 2 Benefits for Developers 6 Beyond the Hype 10 Evolution of an Interface 13 Original USB 14 USB 2.0 15 USB On-The-Go 16 Wireless USB 16 USB versus IEEE-1394 16 USB versus Ethernet 17 Bus Components 17 Topology 18 Defining Terms 19 Contents iv Division of Labor 22 The Host’s Duties 22 The Peripheral’s Duties 25 What about Speed? 28 Developing a Device 29 Elements in the Link 29 Tools for Developing 30 Steps in Developing a Project 30 2. Inside USB Transfers 33 Transfer Basics 34 Enumeration Communications 34 Application Communications 34 Managing Data on the Bus 35 Host Speed and Bus Speed 36 Elements of a Transfer 37 Device Endpoints: the Source and Sink of Data 38 Pipes: Connecting Endpoints to the Host 40 Types of Transfers 40 Stream and Message Pipes 42 Initiating a Transfer 43 Transactions: the Building Blocks of a Transfer 44 Transaction Phases 45 Ensuring that Transfers Are Successful 51 Handshaking 51 Reporting the Status of Control Transfers 55 Error Checking 56 3. A Transfer Type for Every Purpose 61 Control Transfers 61 Availability 62 Structure 62 Data Size 66 Speed 66 Detecting and Handling Errors 68 Bulk Transfers 68 Availability 69 Structure 69 Data Size 69 Speed 71 Detecting and Handling Errors 71 Contents v Interrupt Transfers 72 Availability 72 Structure 72 Data Size 73 Speed 73 Detecting and Handling Errors 75 Isochronous Transfers 76 Availability 76 Structure 76 Data Size 79 Speed 79 Detecting and Handling Errors 80 More about Time-critical Transfers 80 Bus Bandwidth 81 Device Capabilities 81 Host Capabilities 82 Host Latencies 83 4. Enumeration: How the Host Learns about Devices 85 The Process 86 Enumeration Steps 87 Enumerating a Hub 91 Device Removal 92 Tips for Successful Enumeration 92 Descriptors 93 Types of Descriptors 94 Device Descriptor 96 Device_qualifier Descriptor 99 Configuration Descriptor 101 Other_speed_configuration Descriptor 103 Interface Association Descriptor 103 Interface

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