1 | [Device /dev/bus/usb/1/0/2]
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2 | Class .................. 0x00 (Defined at Interface level) ()
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3 | Subclass ............... 0x00 (Defined at Interface level) ()
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4 | Protocol ............... 0x00 (Defined at Interface level) ()
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5 | Max Endpoint 0 Packet .. 8
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6 | USB Version ............ 1.16
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7 | Vendor ID .............. 0x0d8c (C-Media Electronics, Inc.)
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8 | Product ID ............. 0x0014 (Audio Adapter (Unitek Y-247A))
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9 | Product Version ........ 0x0100
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10 | Manufacturer String .... "C-Media Electronics Inc."
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11 | Product String ......... "USB Audio Device"
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12 | Serial Number .......... ""
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13 | [Configuration 0]
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14 | Configuration String . ""
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15 | [Interface 0]
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16 | [Alternate 0 active]
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17 | Class .............. 0x01 Audio ()
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18 | Subclass ........... 0x01 Audio (Control Device)
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19 | Protocol ........... 0x00 Audio (Control Device)
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20 | Interface String ... ""
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21 | [Descriptor 0]
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22 | Type .............. 0x24
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23 | Subtype ........... 0x01 (Header)
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24 | ADC Release ....... 1.0
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25 | Total Length ...... 100
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26 | Interfaces ........ 1, 2,
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27 | [Descriptor 1]
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28 | Type .............. 0x24
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29 | Subtype ........... 0x02 (Input Terminal)
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30 | Terminal ID ....... 1
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31 | Terminal Type ..... 0x0101 (USB Streaming)
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32 | Associated Terminal 0
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33 | Nr Channels ....... 2
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34 | Channel Config .... 0x3
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35 | Front .......... Left Right
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36 | Channel Names ..... 0
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37 | Terminal .......... 0
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38 | [Descriptor 2]
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39 | Type .............. 0x24
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40 | Subtype ........... 0x02 (Input Terminal)
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41 | Terminal ID ....... 2
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42 | Terminal Type ..... 0x0201 (Microphone)
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43 | Associated Terminal 0
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44 | Nr Channels ....... 1
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45 | Channel Config .... 0x1
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46 | Front .......... Left
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47 | Channel Names ..... 0
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48 | Terminal .......... 0
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49 | [Descriptor 3]
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50 | Type .............. 0x24
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51 | Subtype ........... 0x03 (Output Terminal)
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52 | Terminal ID ....... 6
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53 | Terminal Type ..... 0x0301 (Speaker)
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54 | Associated Terminal 0
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55 | Source ID ......... 9
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56 | Terminal .......... 0
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57 | [Descriptor 4]
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58 | Type .............. 0x24
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59 | Subtype ........... 0x03 (Output Terminal)
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60 | Terminal ID ....... 7
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61 | Terminal Type ..... 0x0101 (USB Streaming)
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62 | Associated Terminal 0
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63 | Source ID ......... 8
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64 | Terminal .......... 0
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65 | [Descriptor 5]
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66 | Type .............. 0x24
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67 | Subtype ........... 0x05 (Selector Unit)
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68 | Unit ID ........... 8
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69 | Source IDs ........ 10,
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70 | Selector .......... 10
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71 | [Descriptor 6]
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72 | Type .............. 0x24
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73 | Subtype ........... 0x06 (Feature Unit)
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74 | Unit ID ........... 9
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75 | Source ID ......... 15
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76 | Control Size ...... 1
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77 | Master Channel . Mute
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78 | Channel 1 ...... Volume
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79 | Channel 2 ...... Volume
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80 | Feature ........... 0
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81 | [Descriptor 7]
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82 | Type .............. 0x24
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83 | Subtype ........... 0x06 (Feature Unit)
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84 | Unit ID ........... 10
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85 | Source ID ......... 2
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86 | Control Size ...... 1
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87 | Master Channel . Mute Volume Automatic Gain
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88 | Feature ........... 0
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89 | [Descriptor 8]
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90 | Type .............. 0x24
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91 | Subtype ........... 0x06 (Feature Unit)
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92 | Unit ID ........... 13
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93 | Source ID ......... 2
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94 | Control Size ...... 1
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95 | Master Channel . Mute Volume
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96 | Feature ........... 0
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97 | [Descriptor 9]
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98 | Type .............. 0x24
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99 | Subtype ........... 0x04 (Mixer Unit)
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100 | Unit ID ........... 15
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101 | Source IDs ........ 1, 13,
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102 | Channels .......... 2
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103 | Channel Config .... 0x3
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104 | Front .......... Left Right
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105 | Channel Names ..... 0
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106 | Bitmap Control .... 0x00
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107 | Mixer ............. 0
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108 | [Interface 1]
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109 | [Alternate 0]
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110 | Class .............. 0x01 Audio ()
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111 | Subclass ........... 0x02 Audio (Streaming)
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112 | Protocol ........... 0x00 Audio (Streaming)
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113 | Interface String ... ""
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114 | [Alternate 1 active]
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115 | Class .............. 0x01 Audio ()
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116 | Subclass ........... 0x02 Audio (Streaming)
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117 | Protocol ........... 0x00 Audio (Streaming)
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118 | Interface String ... ""
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119 | [Endpoint 0]
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120 | MaxPacketSize .... 1x 200 bytes
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121 | Interval ......... 1
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122 | Type ............. Isochronous
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123 | Direction ........ Output
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124 | [Descriptor 0]
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125 | Subtype ........... 1 (AS_GENERAL)
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126 | Terminal link ..... 1
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127 | Delay ............. 1
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128 | Format tag ........ 1
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129 | [Descriptor 1]
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130 | Subtype ........... 2 (FORMAT_TYPE)
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131 | Format Type ....... 1 (FORMAT_TYPE_I)
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132 | Channels .......... 2
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133 | Subframe size ..... 2
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134 | Bit resolution .... 16
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135 | Sampling Freq ..... 48000, 44100,
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136 | [Descriptor 2]
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137 | Type .............. 0x25 (CS_ENDPOINT)
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138 | Subtype ........... 0x01 (EP_GENERAL)
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139 | Attributes ........ 0x01 Sampling Frequency
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140 | Lock Delay Units .. 1 (Milliseconds)
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141 | Lock Delay ........ 1
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142 | [Interface 2]
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143 | [Alternate 0]
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144 | Class .............. 0x01 Audio ()
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145 | Subclass ........... 0x02 Audio (Streaming)
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146 | Protocol ........... 0x00 Audio (Streaming)
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147 | Interface String ... ""
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148 | [Alternate 1 active]
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149 | Class .............. 0x01 Audio ()
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150 | Subclass ........... 0x02 Audio (Streaming)
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151 | Protocol ........... 0x00 Audio (Streaming)
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152 | Interface String ... ""
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153 | [Endpoint 0]
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154 | MaxPacketSize .... 1x 100 bytes
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155 | Interval ......... 1
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156 | Type ............. Isochronous
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157 | Direction ........ Input
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158 | [Descriptor 0]
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159 | Subtype ........... 1 (AS_GENERAL)
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160 | Terminal link ..... 7
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161 | Delay ............. 1
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162 | Format tag ........ 1
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163 | [Descriptor 1]
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164 | Subtype ........... 2 (FORMAT_TYPE)
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165 | Format Type ....... 1 (FORMAT_TYPE_I)
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166 | Channels .......... 1
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167 | Subframe size ..... 2
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168 | Bit resolution .... 16
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169 | Sampling Freq ..... 48000, 44100,
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170 | [Descriptor 2]
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171 | Type .............. 0x25 (CS_ENDPOINT)
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172 | Subtype ........... 0x01 (EP_GENERAL)
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173 | Attributes ........ 0x01 Sampling Frequency
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174 | Lock Delay Units .. 0 (Undefined)
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175 | Lock Delay ........ 0
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176 | [Interface 3]
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177 | [Alternate 0 active]
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178 | Class .............. 0x03 Human Interface Device (No Subclass, None)
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179 | Subclass ........... 0x00 Human Interface Device (No Subclass, None)
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180 | Protocol ........... 0x00 Human Interface Device (No Subclass, None)
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181 | Interface String ... ""
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182 | [Endpoint 0]
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183 | MaxPacketSize .... 1x 4 bytes
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184 | Interval ......... 2
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185 | Type ............. Interrupt
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186 | Direction ........ Input
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187 | [Descriptor 0]
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188 | Length............ 0x09
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189 | Type ............. 0x21
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190 | Data ............. 00 01 00 01 22 3c 00
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