Mercurial > hg > ucis.core

annotate USBLib/Descriptor/UsbInfo.cs @ 102:1474f92cf7e7

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Regression fix in ThreadPool class
author Ivo Smits <Ivo@UCIS.nl>
date Wed, 01 Oct 2014 23:16:06 +0200
parents e811297f5aa4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
68
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1 ???using System;
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2 using System.Collections.Generic;
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3 using System.Text;
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4 using UCIS.USBLib.Communication;
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5 using UCIS.Util;
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6
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7 namespace UCIS.USBLib.Descriptor {
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8 public class UsbDeviceInfo {
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9 private UsbDeviceDescriptor mDeviceDescriptor;
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10 private Boolean mHasDeviceDescriptor = false;
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11 private UsbConfigurationInfo[] mConfigurations = null;
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12 private short language = 0;
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13 public IUsbInterface Device { get; private set; }
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14 public UsbDeviceInfo(IUsbInterface device) {
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15 if (device == null) throw new ArgumentNullException("device");
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16 this.Device = device;
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17 }
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18 private void GetDescriptor() {
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19 if (mHasDeviceDescriptor) return;
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20 mDeviceDescriptor = UsbDeviceDescriptor.FromDevice(Device);
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21 mHasDeviceDescriptor = (mDeviceDescriptor.Length >= UsbDeviceDescriptor.Size && mDeviceDescriptor.Type == UsbDescriptorType.Device);
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22 }
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23 public String GetString(Byte index, short langId) {
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24 if (index == 0) return null;
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25 return UsbStringDescriptor.GetStringFromDevice(Device, index, langId);
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26 }
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27 public String GetString(Byte index) {
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28 if (language == 0) {
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29 Byte[] buff = new Byte[4];
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30 int len = Device.GetDescriptor((Byte)UsbDescriptorType.String, 0, 0, buff, 0, buff.Length);
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31 if (len >= 4) language = BitConverter.ToInt16(buff, 2);
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32 }
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33 return GetString(index, language);
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34 }
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35 public UsbDeviceDescriptor Descriptor { get { GetDescriptor(); return mDeviceDescriptor; } }
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36 public String ManufacturerString { get { return GetString(Descriptor.ManufacturerStringID); } }
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37 public String ProductString { get { return GetString(Descriptor.ProductStringID); } }
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38 public String SerialString { get { return GetString(Descriptor.SerialNumberStringID); } }
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39 public IList<UsbConfigurationInfo> Configurations {
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40 get {
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41 if (mConfigurations == null) {
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42 mConfigurations = new UsbConfigurationInfo[Descriptor.NumConfigurations];
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43 for (Byte i = 0; i < mConfigurations.Length; i++) mConfigurations[i] = new UsbConfigurationInfo(this, i);
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44 }
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45 return mConfigurations;
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46 }
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47 }
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48 public UsbConfigurationInfo FindConfiguration(Byte value) {
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49 foreach (UsbConfigurationInfo configuration in Configurations) if (configuration.Descriptor.ConfigurationValue == value) return configuration;
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50 return null;
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51 }
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52 public static UsbDeviceInfo FromDevice(IUsbInterface device) {
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53 return new UsbDeviceInfo(device);
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54 }
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55 public static UsbDeviceInfo FromDeviceNode(UCIS.HWLib.Windows.Devices.DeviceNode devnode) {
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56 IUsbInterface device = UCIS.HWLib.Windows.USB.UsbDevice.GetUsbDevice(devnode);
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57 if (device == null) return null;
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58 return new UsbDeviceInfo(device);
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59 }
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60 }
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61 public class UsbConfigurationInfo {
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62 private UsbConfigurationDescriptor mConfigurationDescriptor;
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63 private Boolean mHasConfigurationDescriptor = false;
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64 private Byte[] mConfigurationBlob = null;
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65 private UsbDescriptorBlob[] mDescriptors = null;
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66 private UsbInterfaceInfo[] mInterfaces = null;
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67 public UsbDeviceInfo Device { get; private set; }
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68 public Byte Index { get; private set; }
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69 internal UsbConfigurationInfo(UsbDeviceInfo device, Byte index) {
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70 this.Device = device;
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71 this.Index = index;
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72 }
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73 private void GetConfigurationBlob() {
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74 if (mConfigurationBlob != null) return;
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75 int length = Descriptor.TotalLength;
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76 if (!mHasConfigurationDescriptor) throw new Exception("Configuration descriptor is invalid");
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77 Byte[] blob = new Byte[length];
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78 length = Device.Device.GetDescriptor((Byte)UsbDescriptorType.Configuration, Index, 0, blob, 0, length);
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79 if (length != blob.Length) throw new Exception("Could not read configuration descriptor");
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80 List<UsbDescriptorBlob> descriptors = new List<UsbDescriptorBlob>();
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81 for (int offset = 0; offset < length; ) {
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82 if (length - offset < 2) throw new Exception("Descriptor has been truncated");
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83 UsbDescriptorBlob descriptor = new UsbDescriptorBlob(blob, offset);
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84 if (length - offset < descriptor.Length) throw new Exception("Descriptor has been truncated");
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85 descriptors.Add(descriptor);
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86 offset += descriptor.Length;
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87 }
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88 mConfigurationBlob = blob;
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89 mDescriptors = descriptors.ToArray();
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90 }
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91 public UsbConfigurationDescriptor Descriptor {
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92 get {
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93 if (!mHasConfigurationDescriptor) {
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94 mConfigurationDescriptor = UsbConfigurationDescriptor.FromDevice(Device.Device, Index);
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95 mHasConfigurationDescriptor = (mConfigurationDescriptor.Length >= UsbConfigurationDescriptor.Size && mConfigurationDescriptor.Type == UsbDescriptorType.Configuration);
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96 }
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97 return mConfigurationDescriptor;
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98 }
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99 }
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100 public IList<UsbDescriptorBlob> Descriptors { get { GetConfigurationBlob(); return mDescriptors; } }
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101 private void GetInterfaces() {
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102 if (mInterfaces != null) return;
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103 GetConfigurationBlob();
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104 UsbInterfaceInfo[] interfaces = new UsbInterfaceInfo[Descriptor.NumInterfaces];
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105 int index = 0;
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106 int first = -1;
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107 for (int i = 0; i < mDescriptors.Length; i++) {
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108 UsbDescriptorBlob descriptor = mDescriptors[i];
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109 if (descriptor.Type != UsbDescriptorType.Interface) continue;
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110 if (first != -1) {
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111 if (index >= interfaces.Length) Array.Resize(ref interfaces, index + 1);
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112 interfaces[index] = new UsbInterfaceInfo(this, ArrayUtil.Slice(mDescriptors, first, i - first));
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113 index++;
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114 }
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115 first = i;
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116 }
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117 if (first != -1) {
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118 if (index >= interfaces.Length) Array.Resize(ref interfaces, index + 1);
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119 interfaces[index] = new UsbInterfaceInfo(this, ArrayUtil.Slice(mDescriptors, first, mDescriptors.Length - first));
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120 }
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121 mInterfaces = interfaces;
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122 }
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123 public IList<UsbInterfaceInfo> Interfaces { get { GetInterfaces(); return mInterfaces; } }
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124 public UsbInterfaceInfo FindInterface(Predicate<UsbInterfaceInfo> predicate) {
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125 GetInterfaces();
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126 foreach (UsbInterfaceInfo interf in mInterfaces) if (predicate(interf)) return interf;
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127 return null;
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128 }
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129 public UsbInterfaceInfo FindInterface(Byte number) {
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130 return FindInterface(number, 0);
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131 }
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132 public UsbInterfaceInfo FindInterface(Byte number, Byte alternateSetting) {
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133 return FindInterface(delegate(UsbInterfaceInfo interf) { return interf.Descriptor.InterfaceNumber == number && interf.Descriptor.AlternateSetting == alternateSetting; });
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134 }
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135 public UsbInterfaceInfo FindInterfaceByClass(UsbClassCode usbclass) {
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136 return FindInterface(delegate(UsbInterfaceInfo interf) { return interf.Descriptor.InterfaceClass == usbclass; });
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137 }
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138 public UsbInterfaceInfo FindInterfaceByClass(UsbClassCode usbclass, Byte subclass) {
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139 return FindInterface(delegate(UsbInterfaceInfo interf) { return interf.Descriptor.InterfaceClass == usbclass && interf.Descriptor.InterfaceSubClass == subclass; });
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140 }
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141 public UsbDescriptorBlob FindDescriptor(UsbDescriptorType type) {
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142 GetConfigurationBlob();
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143 return Array.Find(mDescriptors, delegate(UsbDescriptorBlob descriptor) { return descriptor.Type == type; });
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144 }
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145 public UsbDescriptorBlob[] FindDescriptors(UsbDescriptorType type) {
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146 GetConfigurationBlob();
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147 return Array.FindAll(mDescriptors, delegate(UsbDescriptorBlob descriptor) { return descriptor.Type == type; });
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148 }
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149 }
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150 public class UsbInterfaceInfo {
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151 public UsbConfigurationInfo Configuration { get; private set; }
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152 private UsbDescriptorBlob[] mDescriptors;
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153 public UsbInterfaceInfo(UsbConfigurationInfo configuration, UsbDescriptorBlob[] descriptors) {
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154 this.Configuration = configuration;
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155 this.mDescriptors = descriptors;
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156 }
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157 public UsbInterfaceDescriptor Descriptor { get { return (UsbInterfaceDescriptor)mDescriptors[0]; } }
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158 public IList<UsbEndpointDescriptor> Endpoints {
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159 get {
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160 return Array.ConvertAll(FindDescriptors(UsbDescriptorType.Endpoint), delegate(UsbDescriptorBlob descriptor) { return (UsbEndpointDescriptor)descriptor; });
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161 }
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162 }
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163 public UsbEndpointDescriptor FindEndpoint(Predicate<UsbEndpointDescriptor> predicate) {
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164 foreach (UsbDescriptorBlob descriptor in mDescriptors) {
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165 if (descriptor.Type != UsbDescriptorType.Endpoint) continue;
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166 UsbEndpointDescriptor ep = (UsbEndpointDescriptor)descriptor;
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167 if (predicate(ep)) return ep;
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168 }
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169 return default(UsbEndpointDescriptor);
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170 }
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171 public UsbEndpointDescriptor FindEndpoint(Byte address) {
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172 return FindEndpoint(delegate(UsbEndpointDescriptor ep) { return ep.EndpointAddress == address; });
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173 }
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174 public UsbEndpointDescriptor FindEndpoint(Boolean input) {
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175 return FindEndpoint(delegate(UsbEndpointDescriptor ep) { return ep.IsInput == input; });
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176 }
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177 public UsbEndpointDescriptor FindEndpoint(Boolean input, int transferType) {
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178 return FindEndpoint(delegate(UsbEndpointDescriptor ep) { return ep.TransferType == transferType && ep.IsInput == input; });
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179 }
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180 public UsbDescriptorBlob FindDescriptor(UsbDescriptorType type) {
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181 return Array.Find(mDescriptors, delegate(UsbDescriptorBlob descriptor) { return descriptor.Type == type; });
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182 }
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183 public UsbDescriptorBlob[] FindDescriptors(UsbDescriptorType type) {
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184 return Array.FindAll(mDescriptors, delegate(UsbDescriptorBlob descriptor) { return descriptor.Type == type; });
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185 }
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186 }
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187 }