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  1. ~]$ dmesg
  2.  
  3. [102669.960386] usb 2-1.1: new full-speed USB device number 33 using ehci-pci
  4. [102670.053072] input: Burr-Brown from TI USB Audio DAC as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1/2-1.1:1.2/input/input31
  5. [102670.053206] hid-generic 0003:08BB:2707.0012: input,hidraw0: USB HID v1.00 Device [Burr-Brown from TI USB Audio DAC ] on usb-0000:00:1d.0-1.1/input2
  6.  
  7.  
  8.  
  9. ~]$ lsusb -d 08bb:2707 -v
  10.  
  11. Bus 002 Device 028: ID 08bb:2707 Texas Instruments
  12. Couldn't open device, some information will be missing
  13. Device Descriptor:
  14. bLength 18
  15. bDescriptorType 1
  16. bcdUSB 1.10
  17. bDeviceClass 0 (Defined at Interface level)
  18. bDeviceSubClass 0
  19. bDeviceProtocol 0
  20. bMaxPacketSize0 8
  21. idVendor 0x08bb Texas Instruments
  22. idProduct 0x2707
  23. bcdDevice 1.00
  24. iManufacturer 1
  25. iProduct 2
  26. iSerial 0
  27. bNumConfigurations 1
  28. Configuration Descriptor:
  29. bLength 9
  30. bDescriptorType 2
  31. wTotalLength 190
  32. bNumInterfaces 3
  33. bConfigurationValue 1
  34. iConfiguration 0
  35. bmAttributes 0x80
  36. (Bus Powered)
  37. MaxPower 500mA
  38. Interface Descriptor:
  39. bLength 9
  40. bDescriptorType 4
  41. bInterfaceNumber 0
  42. bAlternateSetting 0
  43. bNumEndpoints 0
  44. bInterfaceClass 1 Audio
  45. bInterfaceSubClass 1 Control Device
  46. bInterfaceProtocol 0
  47. iInterface 0
  48. AudioControl Interface Descriptor:
  49. bLength 9
  50. bDescriptorType 36
  51. bDescriptorSubtype 1 (HEADER)
  52. bcdADC 1.00
  53. wTotalLength 40
  54. bInCollection 1
  55. baInterfaceNr( 0) 1
  56. AudioControl Interface Descriptor:
  57. bLength 12
  58. bDescriptorType 36
  59. bDescriptorSubtype 2 (INPUT_TERMINAL)
  60. bTerminalID 1
  61. wTerminalType 0x0101 USB Streaming
  62. bAssocTerminal 0
  63. bNrChannels 2
  64. wChannelConfig 0x0003
  65. Left Front (L)
  66. Right Front (R)
  67. iChannelNames 0
  68. iTerminal 0
  69. AudioControl Interface Descriptor:
  70. bLength 9
  71. bDescriptorType 36
  72. bDescriptorSubtype 3 (OUTPUT_TERMINAL)
  73. bTerminalID 2
  74. wTerminalType 0x0301 Speaker
  75. bAssocTerminal 0
  76. bSourceID 3
  77. iTerminal 0
  78. AudioControl Interface Descriptor:
  79. bLength 10
  80. bDescriptorType 36
  81. bDescriptorSubtype 6 (FEATURE_UNIT)
  82. bUnitID 3
  83. bSourceID 1
  84. bControlSize 1
  85. bmaControls( 0) 0x01
  86. Mute Control
  87. bmaControls( 1) 0x02
  88. Volume Control
  89. bmaControls( 2) 0x02
  90. Volume Control
  91. iFeature 0
  92. Interface Descriptor:
  93. bLength 9
  94. bDescriptorType 4
  95. bInterfaceNumber 1
  96. bAlternateSetting 0
  97. bNumEndpoints 0
  98. bInterfaceClass 1 Audio
  99. bInterfaceSubClass 2 Streaming
  100. bInterfaceProtocol 0
  101. iInterface 0
  102. Interface Descriptor:
  103. bLength 9
  104. bDescriptorType 4
  105. bInterfaceNumber 1
  106. bAlternateSetting 1
  107. bNumEndpoints 1
  108. bInterfaceClass 1 Audio
  109. bInterfaceSubClass 2 Streaming
  110. bInterfaceProtocol 0
  111. iInterface 0
  112. AudioStreaming Interface Descriptor:
  113. bLength 7
  114. bDescriptorType 36
  115. bDescriptorSubtype 1 (AS_GENERAL)
  116. bTerminalLink 1
  117. bDelay 0 frames
  118. wFormatTag 1 PCM
  119. AudioStreaming Interface Descriptor:
  120. bLength 17
  121. bDescriptorType 36
  122. bDescriptorSubtype 2 (FORMAT_TYPE)
  123. bFormatType 1 (FORMAT_TYPE_I)
  124. bNrChannels 2
  125. bSubframeSize 2
  126. bBitResolution 16
  127. bSamFreqType 3 Discrete
  128. tSamFreq[ 0] 32000
  129. tSamFreq[ 1] 44100
  130. tSamFreq[ 2] 48000
  131. Endpoint Descriptor:
  132. bLength 9
  133. bDescriptorType 5
  134. bEndpointAddress 0x02 EP 2 OUT
  135. bmAttributes 9
  136. Transfer Type Isochronous
  137. Synch Type Adaptive
  138. Usage Type Data
  139. wMaxPacketSize 0x00c0 1x 192 bytes
  140. bInterval 1
  141. bRefresh 0
  142. bSynchAddress 0
  143. AudioControl Endpoint Descriptor:
  144. bLength 7
  145. bDescriptorType 37
  146. bDescriptorSubtype 1 (EP_GENERAL)
  147. bmAttributes 0x00
  148. bLockDelayUnits 2 Decoded PCM samples
  149. wLockDelay 512 Decoded PCM samples
  150. Interface Descriptor:
  151. bLength 9
  152. bDescriptorType 4
  153. bInterfaceNumber 1
  154. bAlternateSetting 2
  155. bNumEndpoints 1
  156. bInterfaceClass 1 Audio
  157. bInterfaceSubClass 2 Streaming
  158. bInterfaceProtocol 0
  159. iInterface 0
  160. AudioStreaming Interface Descriptor:
  161. bLength 7
  162. bDescriptorType 36
  163. bDescriptorSubtype 1 (AS_GENERAL)
  164. bTerminalLink 1
  165. bDelay 0 frames
  166. wFormatTag 1 PCM
  167. AudioStreaming Interface Descriptor:
  168. bLength 17
  169. bDescriptorType 36
  170. bDescriptorSubtype 2 (FORMAT_TYPE)
  171. bFormatType 1 (FORMAT_TYPE_I)
  172. bNrChannels 1
  173. bSubframeSize 2
  174. bBitResolution 16
  175. bSamFreqType 3 Discrete
  176. tSamFreq[ 0] 32000
  177. tSamFreq[ 1] 44100
  178. tSamFreq[ 2] 48000
  179. Endpoint Descriptor:
  180. bLength 9
  181. bDescriptorType 5
  182. bEndpointAddress 0x02 EP 2 OUT
  183. bmAttributes 9
  184. Transfer Type Isochronous
  185. Synch Type Adaptive
  186. Usage Type Data
  187. wMaxPacketSize 0x0060 1x 96 bytes
  188. bInterval 1
  189. bRefresh 0
  190. bSynchAddress 0
  191. AudioControl Endpoint Descriptor:
  192. bLength 7
  193. bDescriptorType 37
  194. bDescriptorSubtype 1 (EP_GENERAL)
  195. bmAttributes 0x00
  196. bLockDelayUnits 2 Decoded PCM samples
  197. wLockDelay 512 Decoded PCM samples
  198. Interface Descriptor:
  199. bLength 9
  200. bDescriptorType 4
  201. bInterfaceNumber 2
  202. bAlternateSetting 0
  203. bNumEndpoints 1
  204. bInterfaceClass 3 Human Interface Device
  205. bInterfaceSubClass 0 No Subclass
  206. bInterfaceProtocol 0 None
  207. iInterface 0
  208. HID Device Descriptor:
  209. bLength 9
  210. bDescriptorType 33
  211. bcdHID 1.00
  212. bCountryCode 0 Not supported
  213. bNumDescriptors 1
  214. bDescriptorType 34 Report
  215. wDescriptorLength 36
  216. Report Descriptors:
  217. ** UNAVAILABLE **
  218. Endpoint Descriptor:
  219. bLength 7
  220. bDescriptorType 5
  221. bEndpointAddress 0x85 EP 5 IN
  222. bmAttributes 3
  223. Transfer Type Interrupt
  224. Synch Type None
  225. Usage Type Data
  226. wMaxPacketSize 0x0001 1x 1 bytes
  227. bInterval 10
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