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  1. Bus 001 Device 002: ID 0ac8:3420 Z-Star Microelectronics Corp. Venus USB2.0 Camera
  2. Device Descriptor:
  3. bLength 18
  4. bDescriptorType 1
  5. bcdUSB 2.00
  6. bDeviceClass 239 Miscellaneous Device
  7. bDeviceSubClass 2 ?
  8. bDeviceProtocol 1 Interface Association
  9. bMaxPacketSize0 64
  10. idVendor 0x0ac8 Z-Star Microelectronics Corp.
  11. idProduct 0x3420 Venus USB2.0 Camera
  12. bcdDevice 1.fa
  13. iManufacturer 1 Vimicro Corp.
  14. iProduct 2 A4tech USB2.0 Camera
  15. iSerial 0
  16. bNumConfigurations 1
  17. Configuration Descriptor:
  18. bLength 9
  19. bDescriptorType 2
  20. wTotalLength 607
  21. bNumInterfaces 4
  22. bConfigurationValue 1
  23. iConfiguration 0
  24. bmAttributes 0x80
  25. (Bus Powered)
  26. MaxPower 320mA
  27. Interface Association:
  28. bLength 8
  29. bDescriptorType 11
  30. bFirstInterface 0
  31. bInterfaceCount 2
  32. bFunctionClass 14 Video
  33. bFunctionSubClass 3 Video Interface Collection
  34. bFunctionProtocol 0
  35. iFunction 2 A4tech USB2.0 Camera
  36. Interface Descriptor:
  37. bLength 9
  38. bDescriptorType 4
  39. bInterfaceNumber 0
  40. bAlternateSetting 0
  41. bNumEndpoints 1
  42. bInterfaceClass 14 Video
  43. bInterfaceSubClass 1 Video Control
  44. bInterfaceProtocol 0
  45. iInterface 2 A4tech USB2.0 Camera
  46. VideoControl Interface Descriptor:
  47. bLength 13
  48. bDescriptorType 36
  49. bDescriptorSubtype 1 (HEADER)
  50. bcdUVC 1.00
  51. wTotalLength 79
  52. dwClockFrequency 30.000000MHz
  53. bInCollection 1
  54. baInterfaceNr( 0) 1
  55. VideoControl Interface Descriptor:
  56. bLength 18
  57. bDescriptorType 36
  58. bDescriptorSubtype 2 (INPUT_TERMINAL)
  59. bTerminalID 1
  60. wTerminalType 0x0201 Camera Sensor
  61. bAssocTerminal 0
  62. iTerminal 0
  63. wObjectiveFocalLengthMin 0
  64. wObjectiveFocalLengthMax 0
  65. wOcularFocalLength 0
  66. bControlSize 3
  67. bmControls 0x0000000a
  68. Auto-Exposure Mode
  69. Exposure Time (Absolute)
  70. VideoControl Interface Descriptor:
  71. bLength 11
  72. bDescriptorType 36
  73. bDescriptorSubtype 5 (PROCESSING_UNIT)
  74. Warning: Descriptor too short
  75. bUnitID 2
  76. bSourceID 1
  77. wMaxMultiplier 0
  78. bControlSize 2
  79. bmControls 0x0000177b
  80. Brightness
  81. Contrast
  82. Saturation
  83. Sharpness
  84. Gamma
  85. White Balance Temperature
  86. Backlight Compensation
  87. Gain
  88. Power Line Frequency
  89. White Balance Temperature, Auto
  90. iProcessing 0
  91. bmVideoStandards 0x 9
  92. None
  93. SECAM - 625/50
  94. VideoControl Interface Descriptor:
  95. bLength 9
  96. bDescriptorType 36
  97. bDescriptorSubtype 3 (OUTPUT_TERMINAL)
  98. bTerminalID 3
  99. wTerminalType 0x0101 USB Streaming
  100. bAssocTerminal 0
  101. bSourceID 2
  102. iTerminal 0
  103. VideoControl Interface Descriptor:
  104. bLength 28
  105. bDescriptorType 36
  106. bDescriptorSubtype 6 (EXTENSION_UNIT)
  107. bUnitID 4
  108. guidExtensionCode {e3deaebb-c2ec-4d42-802c-72f2eb3dfb57}
  109. bNumControl 8
  110. bNrPins 1
  111. baSourceID( 0) 1
  112. bControlSize 3
  113. bmControls( 0) 0x59
  114. bmControls( 1) 0x80
  115. bmControls( 2) 0x80
  116. iExtension 0
  117. Endpoint Descriptor:
  118. bLength 7
  119. bDescriptorType 5
  120. bEndpointAddress 0x81 EP 1 IN
  121. bmAttributes 3
  122. Transfer Type Interrupt
  123. Synch Type None
  124. Usage Type Data
  125. wMaxPacketSize 0x000a 1x 10 bytes
  126. bInterval 5
  127. Interface Descriptor:
  128. bLength 9
  129. bDescriptorType 4
  130. bInterfaceNumber 1
  131. bAlternateSetting 0
  132. bNumEndpoints 0
  133. bInterfaceClass 14 Video
  134. bInterfaceSubClass 2 Video Streaming
  135. bInterfaceProtocol 0
  136. iInterface 0
  137. VideoStreaming Interface Descriptor:
  138. bLength 14
  139. bDescriptorType 36
  140. bDescriptorSubtype 1 (INPUT_HEADER)
  141. bNumFormats 1
  142. wTotalLength 243
  143. bEndPointAddress 130
  144. bmInfo 0
  145. bTerminalLink 3
  146. bStillCaptureMethod 2
  147. bTriggerSupport 1
  148. bTriggerUsage 1
  149. bControlSize 1
  150. bmaControls( 0) 27
  151. VideoStreaming Interface Descriptor:
  152. bLength 27
  153. bDescriptorType 36
  154. bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
  155. bFormatIndex 1
  156. bNumFrameDescriptors 5
  157. guidFormat {59555932-0000-1000-8000-00aa00389b71}
  158. bBitsPerPixel 16
  159. bDefaultFrameIndex 1
  160. bAspectRatioX 0
  161. bAspectRatioY 0
  162. bmInterlaceFlags 0x00
  163. Interlaced stream or variable: No
  164. Fields per frame: 2 fields
  165. Field 1 first: No
  166. Field pattern: Field 1 only
  167. bCopyProtect 0
  168. VideoStreaming Interface Descriptor:
  169. bLength 34
  170. bDescriptorType 36
  171. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  172. bFrameIndex 1
  173. bmCapabilities 0x00
  174. Still image unsupported
  175. wWidth 640
  176. wHeight 480
  177. dwMinBitRate 768000
  178. dwMaxBitRate 196608000
  179. dwMaxVideoFrameBufferSize 614400
  180. dwDefaultFrameInterval 333333
  181. bFrameIntervalType 2
  182. dwFrameInterval( 0) 333333
  183. dwFrameInterval( 1) 666667
  184. VideoStreaming Interface Descriptor:
  185. bLength 34
  186. bDescriptorType 36
  187. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  188. bFrameIndex 2
  189. bmCapabilities 0x00
  190. Still image unsupported
  191. wWidth 352
  192. wHeight 288
  193. dwMinBitRate 768000
  194. dwMaxBitRate 196608000
  195. dwMaxVideoFrameBufferSize 202752
  196. dwDefaultFrameInterval 333333
  197. bFrameIntervalType 2
  198. dwFrameInterval( 0) 333333
  199. dwFrameInterval( 1) 666667
  200. VideoStreaming Interface Descriptor:
  201. bLength 34
  202. bDescriptorType 36
  203. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  204. bFrameIndex 3
  205. bmCapabilities 0x00
  206. Still image unsupported
  207. wWidth 320
  208. wHeight 240
  209. dwMinBitRate 768000
  210. dwMaxBitRate 196608000
  211. dwMaxVideoFrameBufferSize 153600
  212. dwDefaultFrameInterval 333333
  213. bFrameIntervalType 2
  214. dwFrameInterval( 0) 333333
  215. dwFrameInterval( 1) 666667
  216. VideoStreaming Interface Descriptor:
  217. bLength 34
  218. bDescriptorType 36
  219. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  220. bFrameIndex 4
  221. bmCapabilities 0x00
  222. Still image unsupported
  223. wWidth 176
  224. wHeight 144
  225. dwMinBitRate 768000
  226. dwMaxBitRate 196608000
  227. dwMaxVideoFrameBufferSize 50688
  228. dwDefaultFrameInterval 333333
  229. bFrameIntervalType 2
  230. dwFrameInterval( 0) 333333
  231. dwFrameInterval( 1) 666667
  232. VideoStreaming Interface Descriptor:
  233. bLength 34
  234. bDescriptorType 36
  235. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  236. bFrameIndex 5
  237. bmCapabilities 0x00
  238. Still image unsupported
  239. wWidth 160
  240. wHeight 120
  241. dwMinBitRate 768000
  242. dwMaxBitRate 196608000
  243. dwMaxVideoFrameBufferSize 38400
  244. dwDefaultFrameInterval 333333
  245. bFrameIntervalType 2
  246. dwFrameInterval( 0) 333333
  247. dwFrameInterval( 1) 666667
  248. VideoStreaming Interface Descriptor:
  249. bLength 26
  250. bDescriptorType 36
  251. bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
  252. bEndpointAddress 0
  253. bNumImageSizePatterns 5
  254. wWidth( 0) 640
  255. wHeight( 0) 480
  256. wWidth( 1) 352
  257. wHeight( 1) 288
  258. wWidth( 2) 320
  259. wHeight( 2) 240
  260. wWidth( 3) 176
  261. wHeight( 3) 144
  262. wWidth( 4) 160
  263. wHeight( 4) 120
  264. bNumCompressionPatterns 5
  265. VideoStreaming Interface Descriptor:
  266. bLength 6
  267. bDescriptorType 36
  268. bDescriptorSubtype 13 (COLORFORMAT)
  269. bColorPrimaries 1 (BT.709,sRGB)
  270. bTransferCharacteristics 1 (BT.709)
  271. bMatrixCoefficients 4 (SMPTE 170M (BT.601))
  272. Interface Descriptor:
  273. bLength 9
  274. bDescriptorType 4
  275. bInterfaceNumber 1
  276. bAlternateSetting 1
  277. bNumEndpoints 1
  278. bInterfaceClass 14 Video
  279. bInterfaceSubClass 2 Video Streaming
  280. bInterfaceProtocol 0
  281. iInterface 0
  282. Endpoint Descriptor:
  283. bLength 7
  284. bDescriptorType 5
  285. bEndpointAddress 0x82 EP 2 IN
  286. bmAttributes 5
  287. Transfer Type Isochronous
  288. Synch Type Asynchronous
  289. Usage Type Data
  290. wMaxPacketSize 0x0080 1x 128 bytes
  291. bInterval 1
  292. Interface Descriptor:
  293. bLength 9
  294. bDescriptorType 4
  295. bInterfaceNumber 1
  296. bAlternateSetting 2
  297. bNumEndpoints 1
  298. bInterfaceClass 14 Video
  299. bInterfaceSubClass 2 Video Streaming
  300. bInterfaceProtocol 0
  301. iInterface 0
  302. Endpoint Descriptor:
  303. bLength 7
  304. bDescriptorType 5
  305. bEndpointAddress 0x82 EP 2 IN
  306. bmAttributes 5
  307. Transfer Type Isochronous
  308. Synch Type Asynchronous
  309. Usage Type Data
  310. wMaxPacketSize 0x0200 1x 512 bytes
  311. bInterval 1
  312. Interface Descriptor:
  313. bLength 9
  314. bDescriptorType 4
  315. bInterfaceNumber 1
  316. bAlternateSetting 3
  317. bNumEndpoints 1
  318. bInterfaceClass 14 Video
  319. bInterfaceSubClass 2 Video Streaming
  320. bInterfaceProtocol 0
  321. iInterface 0
  322. Endpoint Descriptor:
  323. bLength 7
  324. bDescriptorType 5
  325. bEndpointAddress 0x82 EP 2 IN
  326. bmAttributes 5
  327. Transfer Type Isochronous
  328. Synch Type Asynchronous
  329. Usage Type Data
  330. wMaxPacketSize 0x0400 1x 1024 bytes
  331. bInterval 1
  332. Interface Descriptor:
  333. bLength 9
  334. bDescriptorType 4
  335. bInterfaceNumber 1
  336. bAlternateSetting 4
  337. bNumEndpoints 1
  338. bInterfaceClass 14 Video
  339. bInterfaceSubClass 2 Video Streaming
  340. bInterfaceProtocol 0
  341. iInterface 0
  342. Endpoint Descriptor:
  343. bLength 7
  344. bDescriptorType 5
  345. bEndpointAddress 0x82 EP 2 IN
  346. bmAttributes 5
  347. Transfer Type Isochronous
  348. Synch Type Asynchronous
  349. Usage Type Data
  350. wMaxPacketSize 0x0b00 2x 768 bytes
  351. bInterval 1
  352. Interface Descriptor:
  353. bLength 9
  354. bDescriptorType 4
  355. bInterfaceNumber 1
  356. bAlternateSetting 5
  357. bNumEndpoints 1
  358. bInterfaceClass 14 Video
  359. bInterfaceSubClass 2 Video Streaming
  360. bInterfaceProtocol 0
  361. iInterface 0
  362. Endpoint Descriptor:
  363. bLength 7
  364. bDescriptorType 5
  365. bEndpointAddress 0x82 EP 2 IN
  366. bmAttributes 5
  367. Transfer Type Isochronous
  368. Synch Type Asynchronous
  369. Usage Type Data
  370. wMaxPacketSize 0x0c00 2x 1024 bytes
  371. bInterval 1
  372. Interface Descriptor:
  373. bLength 9
  374. bDescriptorType 4
  375. bInterfaceNumber 1
  376. bAlternateSetting 6
  377. bNumEndpoints 1
  378. bInterfaceClass 14 Video
  379. bInterfaceSubClass 2 Video Streaming
  380. bInterfaceProtocol 0
  381. iInterface 0
  382. Endpoint Descriptor:
  383. bLength 7
  384. bDescriptorType 5
  385. bEndpointAddress 0x82 EP 2 IN
  386. bmAttributes 5
  387. Transfer Type Isochronous
  388. Synch Type Asynchronous
  389. Usage Type Data
  390. wMaxPacketSize 0x1380 3x 896 bytes
  391. bInterval 1
  392. Interface Descriptor:
  393. bLength 9
  394. bDescriptorType 4
  395. bInterfaceNumber 1
  396. bAlternateSetting 7
  397. bNumEndpoints 1
  398. bInterfaceClass 14 Video
  399. bInterfaceSubClass 2 Video Streaming
  400. bInterfaceProtocol 0
  401. iInterface 0
  402. Endpoint Descriptor:
  403. bLength 7
  404. bDescriptorType 5
  405. bEndpointAddress 0x82 EP 2 IN
  406. bmAttributes 5
  407. Transfer Type Isochronous
  408. Synch Type Asynchronous
  409. Usage Type Data
  410. wMaxPacketSize 0x1400 3x 1024 bytes
  411. bInterval 1
  412. Interface Association:
  413. bLength 8
  414. bDescriptorType 11
  415. bFirstInterface 2
  416. bInterfaceCount 2
  417. bFunctionClass 1 Audio
  418. bFunctionSubClass 2 Streaming
  419. bFunctionProtocol 0
  420. iFunction 3 A4tech USB2.0 Camera (Audio)
  421. Interface Descriptor:
  422. bLength 9
  423. bDescriptorType 4
  424. bInterfaceNumber 2
  425. bAlternateSetting 0
  426. bNumEndpoints 0
  427. bInterfaceClass 1 Audio
  428. bInterfaceSubClass 1 Control Device
  429. bInterfaceProtocol 0
  430. iInterface 3 A4tech USB2.0 Camera (Audio)
  431. AudioControl Interface Descriptor:
  432. bLength 9
  433. bDescriptorType 36
  434. bDescriptorSubtype 1 (HEADER)
  435. bcdADC 1.00
  436. wTotalLength 39
  437. bInCollection 1
  438. baInterfaceNr( 0) 3
  439. AudioControl Interface Descriptor:
  440. bLength 12
  441. bDescriptorType 36
  442. bDescriptorSubtype 2 (INPUT_TERMINAL)
  443. bTerminalID 1
  444. wTerminalType 0x0201 Microphone
  445. bAssocTerminal 0
  446. bNrChannels 1
  447. wChannelConfig 0x0000
  448. iChannelNames 0
  449. iTerminal 0
  450. AudioControl Interface Descriptor:
  451. bLength 9
  452. bDescriptorType 36
  453. bDescriptorSubtype 6 (FEATURE_UNIT)
  454. bUnitID 2
  455. bSourceID 1
  456. bControlSize 1
  457. bmaControls( 0) 0x00
  458. bmaControls( 1) 0x03
  459. Mute Control
  460. Volume Control
  461. iFeature 0
  462. AudioControl Interface Descriptor:
  463. bLength 9
  464. bDescriptorType 36
  465. bDescriptorSubtype 3 (OUTPUT_TERMINAL)
  466. bTerminalID 3
  467. wTerminalType 0x0101 USB Streaming
  468. bAssocTerminal 1
  469. bSourceID 2
  470. iTerminal 0
  471. Interface Descriptor:
  472. bLength 9
  473. bDescriptorType 4
  474. bInterfaceNumber 3
  475. bAlternateSetting 0
  476. bNumEndpoints 0
  477. bInterfaceClass 1 Audio
  478. bInterfaceSubClass 2 Streaming
  479. bInterfaceProtocol 0
  480. iInterface 0
  481. Interface Descriptor:
  482. bLength 9
  483. bDescriptorType 4
  484. bInterfaceNumber 3
  485. bAlternateSetting 1
  486. bNumEndpoints 1
  487. bInterfaceClass 1 Audio
  488. bInterfaceSubClass 2 Streaming
  489. bInterfaceProtocol 0
  490. iInterface 0
  491. AudioStreaming Interface Descriptor:
  492. bLength 7
  493. bDescriptorType 36
  494. bDescriptorSubtype 1 (AS_GENERAL)
  495. bTerminalLink 3
  496. bDelay 1 frames
  497. wFormatTag 1 PCM
  498. AudioStreaming Interface Descriptor:
  499. bLength 29
  500. bDescriptorType 36
  501. bDescriptorSubtype 2 (FORMAT_TYPE)
  502. bFormatType 1 (FORMAT_TYPE_I)
  503. bNrChannels 1
  504. bSubframeSize 2
  505. bBitResolution 16
  506. bSamFreqType 7 Discrete
  507. tSamFreq[ 0] 8000
  508. tSamFreq[ 1] 11025
  509. tSamFreq[ 2] 16000
  510. tSamFreq[ 3] 22050
  511. tSamFreq[ 4] 32000
  512. tSamFreq[ 5] 44100
  513. tSamFreq[ 6] 48000
  514. Endpoint Descriptor:
  515. bLength 9
  516. bDescriptorType 5
  517. bEndpointAddress 0x83 EP 3 INBus 001 Device 002: ID 0ac8:3420 Z-Star Microelectronics Corp. Venus USB2.0 Camera
  518. Device Descriptor:
  519. bLength 18
  520. bDescriptorType 1
  521. bcdUSB 2.00
  522. bDeviceClass 239 Miscellaneous Device
  523. bDeviceSubClass 2 ?
  524. bDeviceProtocol 1 Interface Association
  525. bMaxPacketSize0 64
  526. idVendor 0x0ac8 Z-Star Microelectronics Corp.
  527. idProduct 0x3420 Venus USB2.0 Camera
  528. bcdDevice 1.fa
  529. iManufacturer 1 Vimicro Corp.
  530. iProduct 2 A4tech USB2.0 Camera
  531. iSerial 0
  532. bNumConfigurations 1
  533. Configuration Descriptor:
  534. bLength 9
  535. bDescriptorType 2
  536. wTotalLength 607
  537. bNumInterfaces 4
  538. bConfigurationValue 1
  539. iConfiguration 0
  540. bmAttributes 0x80
  541. (Bus Powered)
  542. MaxPower 320mA
  543. Interface Association:
  544. bLength 8
  545. bDescriptorType 11
  546. bFirstInterface 0
  547. bInterfaceCount 2
  548. bFunctionClass 14 Video
  549. bFunctionSubClass 3 Video Interface Collection
  550. bFunctionProtocol 0
  551. iFunction 2 A4tech USB2.0 Camera
  552. Interface Descriptor:
  553. bLength 9
  554. bDescriptorType 4
  555. bInterfaceNumber 0
  556. bAlternateSetting 0
  557. bNumEndpoints 1
  558. bInterfaceClass 14 Video
  559. bInterfaceSubClass 1 Video Control
  560. bInterfaceProtocol 0
  561. iInterface 2 A4tech USB2.0 Camera
  562. VideoControl Interface Descriptor:
  563. bLength 13
  564. bDescriptorType 36
  565. bDescriptorSubtype 1 (HEADER)
  566. bcdUVC 1.00
  567. wTotalLength 79
  568. dwClockFrequency 30.000000MHz
  569. bInCollection 1
  570. baInterfaceNr( 0) 1
  571. VideoControl Interface Descriptor:
  572. bLength 18
  573. bDescriptorType 36
  574. bDescriptorSubtype 2 (INPUT_TERMINAL)
  575. bTerminalID 1
  576. wTerminalType 0x0201 Camera Sensor
  577. bAssocTerminal 0
  578. iTerminal 0
  579. wObjectiveFocalLengthMin 0
  580. wObjectiveFocalLengthMax 0
  581. wOcularFocalLength 0
  582. bControlSize 3
  583. bmControls 0x0000000a
  584. Auto-Exposure Mode
  585. Exposure Time (Absolute)
  586. VideoControl Interface Descriptor:
  587. bLength 11
  588. bDescriptorType 36
  589. bDescriptorSubtype 5 (PROCESSING_UNIT)
  590. Warning: Descriptor too short
  591. bUnitID 2
  592. bSourceID 1
  593. wMaxMultiplier 0
  594. bControlSize 2
  595. bmControls 0x0000177b
  596. Brightness
  597. Contrast
  598. Saturation
  599. Sharpness
  600. Gamma
  601. White Balance Temperature
  602. Backlight Compensation
  603. Gain
  604. Power Line Frequency
  605. White Balance Temperature, Auto
  606. iProcessing 0
  607. bmVideoStandards 0x 9
  608. None
  609. SECAM - 625/50
  610. VideoControl Interface Descriptor:
  611. bLength 9
  612. bDescriptorType 36
  613. bDescriptorSubtype 3 (OUTPUT_TERMINAL)
  614. bTerminalID 3
  615. wTerminalType 0x0101 USB Streaming
  616. bAssocTerminal 0
  617. bSourceID 2
  618. iTerminal 0
  619. VideoControl Interface Descriptor:
  620. bLength 28
  621. bDescriptorType 36
  622. bDescriptorSubtype 6 (EXTENSION_UNIT)
  623. bUnitID 4
  624. guidExtensionCode {e3deaebb-c2ec-4d42-802c-72f2eb3dfb57}
  625. bNumControl 8
  626. bNrPins 1
  627. baSourceID( 0) 1
  628. bControlSize 3
  629. bmControls( 0) 0x59
  630. bmControls( 1) 0x80
  631. bmControls( 2) 0x80
  632. iExtension 0
  633. Endpoint Descriptor:
  634. bLength 7
  635. bDescriptorType 5
  636. bEndpointAddress 0x81 EP 1 IN
  637. bmAttributes 3
  638. Transfer Type Interrupt
  639. Synch Type None
  640. Usage Type Data
  641. wMaxPacketSize 0x000a 1x 10 bytes
  642. bInterval 5
  643. Interface Descriptor:
  644. bLength 9
  645. bDescriptorType 4
  646. bInterfaceNumber 1
  647. bAlternateSetting 0
  648. bNumEndpoints 0
  649. bInterfaceClass 14 Video
  650. bInterfaceSubClass 2 Video Streaming
  651. bInterfaceProtocol 0
  652. iInterface 0
  653. VideoStreaming Interface Descriptor:
  654. bLength 14
  655. bDescriptorType 36
  656. bDescriptorSubtype 1 (INPUT_HEADER)
  657. bNumFormats 1
  658. wTotalLength 243
  659. bEndPointAddress 130
  660. bmInfo 0
  661. bTerminalLink 3
  662. bStillCaptureMethod 2
  663. bTriggerSupport 1
  664. bTriggerUsage 1
  665. bControlSize 1
  666. bmaControls( 0) 27
  667. VideoStreaming Interface Descriptor:
  668. bLength 27
  669. bDescriptorType 36
  670. bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
  671. bFormatIndex 1
  672. bNumFrameDescriptors 5
  673. guidFormat {59555932-0000-1000-8000-00aa00389b71}
  674. bBitsPerPixel 16
  675. bDefaultFrameIndex 1
  676. bAspectRatioX 0
  677. bAspectRatioY 0
  678. bmInterlaceFlags 0x00
  679. Interlaced stream or variable: No
  680. Fields per frame: 2 fields
  681. Field 1 first: No
  682. Field pattern: Field 1 only
  683. bCopyProtect 0
  684. VideoStreaming Interface Descriptor:
  685. bLength 34
  686. bDescriptorType 36
  687. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  688. bFrameIndex 1
  689. bmCapabilities 0x00
  690. Still image unsupported
  691. wWidth 640
  692. wHeight 480
  693. dwMinBitRate 768000
  694. dwMaxBitRate 196608000
  695. dwMaxVideoFrameBufferSize 614400
  696. dwDefaultFrameInterval 333333
  697. bFrameIntervalType 2
  698. dwFrameInterval( 0) 333333
  699. dwFrameInterval( 1) 666667
  700. VideoStreaming Interface Descriptor:
  701. bLength 34
  702. bDescriptorType 36
  703. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  704. bFrameIndex 2
  705. bmCapabilities 0x00
  706. Still image unsupported
  707. wWidth 352
  708. wHeight 288
  709. dwMinBitRate 768000
  710. dwMaxBitRate 196608000
  711. dwMaxVideoFrameBufferSize 202752
  712. dwDefaultFrameInterval 333333
  713. bFrameIntervalType 2
  714. dwFrameInterval( 0) 333333
  715. dwFrameInterval( 1) 666667
  716. VideoStreaming Interface Descriptor:
  717. bLength 34
  718. bDescriptorType 36
  719. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  720. bFrameIndex 3
  721. bmCapabilities 0x00
  722. Still image unsupported
  723. wWidth 320
  724. wHeight 240
  725. dwMinBitRate 768000
  726. dwMaxBitRate 196608000
  727. dwMaxVideoFrameBufferSize 153600
  728. dwDefaultFrameInterval 333333
  729. bFrameIntervalType 2
  730. dwFrameInterval( 0) 333333
  731. dwFrameInterval( 1) 666667
  732. VideoStreaming Interface Descriptor:
  733. bLength 34
  734. bDescriptorType 36
  735. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  736. bFrameIndex 4
  737. bmCapabilities 0x00
  738. Still image unsupported
  739. wWidth 176
  740. wHeight 144
  741. dwMinBitRate 768000
  742. dwMaxBitRate 196608000
  743. dwMaxVideoFrameBufferSize 50688
  744. dwDefaultFrameInterval 333333
  745. bFrameIntervalType 2
  746. dwFrameInterval( 0) 333333
  747. dwFrameInterval( 1) 666667
  748. VideoStreaming Interface Descriptor:
  749. bLength 34
  750. bDescriptorType 36
  751. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  752. bFrameIndex 5
  753. bmCapabilities 0x00
  754. Still image unsupported
  755. wWidth 160
  756. wHeight 120
  757. dwMinBitRate 768000
  758. dwMaxBitRate 196608000
  759. dwMaxVideoFrameBufferSize 38400
  760. dwDefaultFrameInterval 333333
  761. bFrameIntervalType 2
  762. dwFrameInterval( 0) 333333
  763. dwFrameInterval( 1) 666667
  764. VideoStreaming Interface Descriptor:
  765. bLength 26
  766. bDescriptorType 36
  767. bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
  768. bEndpointAddress 0
  769. bNumImageSizePatterns 5
  770. wWidth( 0) 640
  771. wHeight( 0) 480
  772. wWidth( 1) 352
  773. wHeight( 1) 288
  774. wWidth( 2) 320
  775. wHeight( 2) 240
  776. wWidth( 3) 176
  777. wHeight( 3) 144
  778. wWidth( 4) 160
  779. wHeight( 4) 120
  780. bNumCompressionPatterns 5
  781. VideoStreaming Interface Descriptor:
  782. bLength 6
  783. bDescriptorType 36
  784. bDescriptorSubtype 13 (COLORFORMAT)
  785. bColorPrimaries 1 (BT.709,sRGB)
  786. bTransferCharacteristics 1 (BT.709)
  787. bMatrixCoefficients 4 (SMPTE 170M (BT.601))
  788. Interface Descriptor:
  789. bLength 9
  790. bDescriptorType 4
  791. bInterfaceNumber 1
  792. bAlternateSetting 1
  793. bNumEndpoints 1
  794. bInterfaceClass 14 Video
  795. bInterfaceSubClass 2 Video Streaming
  796. bInterfaceProtocol 0
  797. iInterface 0
  798. Endpoint Descriptor:
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  800. bDescriptorType 5
  801. bEndpointAddress 0x82 EP 2 IN
  802. bmAttributes 5
  803. Transfer Type Isochronous
  804. Synch Type Asynchronous
  805. Usage Type Data
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  807. bInterval 1
  808. Interface Descriptor:
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  810. bDescriptorType 4
  811. bInterfaceNumber 1
  812. bAlternateSetting 2
  813. bNumEndpoints 1
  814. bInterfaceClass 14 Video
  815. bInterfaceSubClass 2 Video Streaming
  816. bInterfaceProtocol 0
  817. iInterface 0
  818. Endpoint Descriptor:
  819. bLength 7
  820. bDescriptorType 5
  821. bEndpointAddress 0x82 EP 2 IN
  822. bmAttributes 5
  823. Transfer Type Isochronous
  824. Synch Type Asynchronous
  825. Usage Type Data
  826. wMaxPacketSize 0x0200 1x 512 bytes
  827. bInterval 1
  828. Interface Descriptor:
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  830. bDescriptorType 4
  831. bInterfaceNumber 1
  832. bAlternateSetting 3
  833. bNumEndpoints 1
  834. bInterfaceClass 14 Video
  835. bInterfaceSubClass 2 Video Streaming
  836. bInterfaceProtocol 0
  837. iInterface 0
  838. Endpoint Descriptor:
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  840. bDescriptorType 5
  841. bEndpointAddress 0x82 EP 2 IN
  842. bmAttributes 5
  843. Transfer Type Isochronous
  844. Synch Type Asynchronous
  845. Usage Type Data
  846. wMaxPacketSize 0x0400 1x 1024 bytes
  847. bInterval 1
  848. Interface Descriptor:
  849. bLength 9Bus 001 Device 002: ID 0ac8:3420 Z-Star Microelectronics Corp. Venus USB2.0 Camera
  850. Device Descriptor:
  851. bLength 18
  852. bDescriptorType 1
  853. bcdUSB 2.00
  854. bDeviceClass 239 Miscellaneous Device
  855. bDeviceSubClass 2 ?
  856. bDeviceProtocol 1 Interface Association
  857. bMaxPacketSize0 64
  858. idVendor 0x0ac8 Z-Star Microelectronics Corp.
  859. idProduct 0x3420 Venus USB2.0 Camera
  860. bcdDevice 1.fa
  861. iManufacturer 1 Vimicro Corp.
  862. iProduct 2 A4tech USB2.0 Camera
  863. iSerial 0
  864. bNumConfigurations 1
  865. Configuration Descriptor:
  866. bLength 9
  867. bDescriptorType 2
  868. wTotalLength 607
  869. bNumInterfaces 4
  870. bConfigurationValue 1
  871. iConfiguration 0
  872. bmAttributes 0x80
  873. (Bus Powered)
  874. MaxPower 320mA
  875. Interface Association:
  876. bLength 8
  877. bDescriptorType 11
  878. bFirstInterface 0
  879. bInterfaceCount 2
  880. bFunctionClass 14 Video
  881. bFunctionSubClass 3 Video Interface Collection
  882. bFunctionProtocol 0
  883. iFunction 2 A4tech USB2.0 Camera
  884. Interface Descriptor:
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  886. bDescriptorType 4
  887. bInterfaceNumber 0
  888. bAlternateSetting 0
  889. bNumEndpoints 1
  890. bInterfaceClass 14 Video
  891. bInterfaceSubClass 1 Video Control
  892. bInterfaceProtocol 0
  893. iInterface 2 A4tech USB2.0 Camera
  894. VideoControl Interface Descriptor:
  895. bLength 13
  896. bDescriptorType 36
  897. bDescriptorSubtype 1 (HEADER)
  898. bcdUVC 1.00
  899. wTotalLength 79
  900. dwClockFrequency 30.000000MHz
  901. bInCollection 1
  902. baInterfaceNr( 0) 1
  903. VideoControl Interface Descriptor:
  904. bLength 18
  905. bDescriptorType 36
  906. bDescriptorSubtype 2 (INPUT_TERMINAL)
  907. bTerminalID 1
  908. wTerminalType 0x0201 Camera Sensor
  909. bAssocTerminal 0
  910. iTerminal 0
  911. wObjectiveFocalLengthMin 0
  912. wObjectiveFocalLengthMax 0
  913. wOcularFocalLength 0
  914. bControlSize 3
  915. bmControls 0x0000000a
  916. Auto-Exposure Mode
  917. Exposure Time (Absolute)
  918. VideoControl Interface Descriptor:
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  920. bDescriptorType 36
  921. bDescriptorSubtype 5 (PROCESSING_UNIT)
  922. Warning: Descriptor too short
  923. bUnitID 2
  924. bSourceID 1
  925. wMaxMultiplier 0
  926. bControlSize 2
  927. bmControls 0x0000177b
  928. Brightness
  929. Contrast
  930. Saturation
  931. Sharpness
  932. Gamma
  933. White Balance Temperature
  934. Backlight Compensation
  935. Gain
  936. Power Line Frequency
  937. White Balance Temperature, Auto
  938. iProcessing 0
  939. bmVideoStandards 0x 9
  940. None
  941. SECAM - 625/50
  942. VideoControl Interface Descriptor:
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  944. bDescriptorType 36
  945. bDescriptorSubtype 3 (OUTPUT_TERMINAL)
  946. bTerminalID 3
  947. wTerminalType 0x0101 USB Streaming
  948. bAssocTerminal 0
  949. bSourceID 2
  950. iTerminal 0
  951. VideoControl Interface Descriptor:
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  953. bDescriptorType 36
  954. bDescriptorSubtype 6 (EXTENSION_UNIT)
  955. bUnitID 4
  956. guidExtensionCode {e3deaebb-c2ec-4d42-802c-72f2eb3dfb57}
  957. bNumControl 8
  958. bNrPins 1
  959. baSourceID( 0) 1
  960. bControlSize 3
  961. bmControls( 0) 0x59
  962. bmControls( 1) 0x80
  963. bmControls( 2) 0x80
  964. iExtension 0
  965. Endpoint Descriptor:
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  967. bDescriptorType 5
  968. bEndpointAddress 0x81 EP 1 IN
  969. bmAttributes 3
  970. Transfer Type Interrupt
  971. Synch Type None
  972. Usage Type Data
  973. wMaxPacketSize 0x000a 1x 10 bytes
  974. bInterval 5
  975. Interface Descriptor:
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  977. bDescriptorType 4
  978. bInterfaceNumber 1
  979. bAlternateSetting 0
  980. bNumEndpoints 0
  981. bInterfaceClass 14 Video
  982. bInterfaceSubClass 2 Video Streaming
  983. bInterfaceProtocol 0
  984. iInterface 0
  985. VideoStreaming Interface Descriptor:
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  987. bDescriptorType 36
  988. bDescriptorSubtype 1 (INPUT_HEADER)
  989. bNumFormats 1
  990. wTotalLength 243
  991. bEndPointAddress 130
  992. bmInfo 0
  993. bTerminalLink 3
  994. bStillCaptureMethod 2
  995. bTriggerSupport 1
  996. bTriggerUsage 1
  997. bControlSize 1
  998. bmaControls( 0) 27
  999. VideoStreaming Interface Descriptor:
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  1001. bDescriptorType 36
  1002. bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
  1003. bFormatIndex 1
  1004. bNumFrameDescriptors 5
  1005. guidFormat {59555932-0000-1000-8000-00aa00389b71}
  1006. bBitsPerPixel 16
  1007. bDefaultFrameIndex 1
  1008. bAspectRatioX 0
  1009. bAspectRatioY 0
  1010. bmInterlaceFlags 0x00
  1011. Interlaced stream or variable: No
  1012. Fields per frame: 2 fields
  1013. Field 1 first: No
  1014. Field pattern: Field 1 only
  1015. bCopyProtect 0
  1016. VideoStreaming Interface Descriptor:
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  1018. bDescriptorType 36
  1019. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  1020. bFrameIndex 1
  1021. bmCapabilities 0x00
  1022. Still image unsupported
  1023. wWidth 640
  1024. wHeight 480
  1025. dwMinBitRate 768000
  1026. dwMaxBitRate 196608000
  1027. dwMaxVideoFrameBufferSize 614400
  1028. dwDefaultFrameInterval 333333
  1029. bFrameIntervalType 2
  1030. dwFrameInterval( 0) 333333
  1031. dwFrameInterval( 1) 666667
  1032. VideoStreaming Interface Descriptor:
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  1034. bDescriptorType 36
  1035. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  1036. bFrameIndex 2
  1037. bmCapabilities 0x00
  1038. Still image unsupported
  1039. wWidth 352
  1040. wHeight 288
  1041. dwMinBitRate 768000
  1042. dwMaxBitRate 196608000
  1043. dwMaxVideoFrameBufferSize 202752
  1044. dwDefaultFrameInterval 333333
  1045. bFrameIntervalType 2
  1046. dwFrameInterval( 0) 333333
  1047. dwFrameInterval( 1) 666667
  1048. VideoStreaming Interface Descriptor:
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  1050. bDescriptorType 36
  1051. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  1052. bFrameIndex 3
  1053. bmCapabilities 0x00
  1054. Still image unsupported
  1055. wWidth 320
  1056. wHeight 240
  1057. dwMinBitRate 768000
  1058. dwMaxBitRate 196608000
  1059. dwMaxVideoFrameBufferSize 153600
  1060. dwDefaultFrameInterval 333333
  1061. bFrameIntervalType 2
  1062. dwFrameInterval( 0) 333333
  1063. dwFrameInterval( 1) 666667
  1064. VideoStreaming Interface Descriptor:
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  1066. bDescriptorType 36
  1067. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  1068. bFrameIndex 4
  1069. bmCapabilities 0x00
  1070. Still image unsupported
  1071. wWidth 176
  1072. wHeight 144
  1073. dwMinBitRate 768000
  1074. dwMaxBitRate 196608000
  1075. dwMaxVideoFrameBufferSize 50688
  1076. dwDefaultFrameInterval 333333
  1077. bFrameIntervalType 2
  1078. dwFrameInterval( 0) 333333
  1079. dwFrameInterval( 1) 666667
  1080. VideoStreaming Interface Descriptor:
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  1082. bDescriptorType 36
  1083. bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
  1084. bFrameIndex 5
  1085. bmCapabilities 0x00
  1086. Still image unsupported
  1087. wWidth 160
  1088. wHeight 120
  1089. dwMinBitRate 768000
  1090. dwMaxBitRate 196608000
  1091. dwMaxVideoFrameBufferSize 38400
  1092. dwDefaultFrameInterval 333333
  1093. bFrameIntervalType 2
  1094. dwFrameInterval( 0) 333333
  1095. dwFrameInterval( 1) 666667
  1096. VideoStreaming Interface Descriptor:
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  1098. bDescriptorType 36
  1099. bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
  1100. bEndpointAddress 0
  1101. bNumImageSizePatterns 5
  1102. wWidth( 0) 640
  1103. wHeight( 0) 480
  1104. wWidth( 1) 352
  1105. wHeight( 1) 288
  1106. wWidth( 2) 320
  1107. wHeight( 2) 240
  1108. wWidth( 3) 176
  1109. wHeight( 3) 144
  1110. wWidth( 4) 160
  1111. wHeight( 4) 120
  1112. bNumCompressionPatterns 5
  1113. VideoStreaming Interface Descriptor:
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  1115. bDescriptorType 36
  1116. bDescriptorSubtype 13 (COLORFORMAT)
  1117. bColorPrimaries 1 (BT.709,sRGB)
  1118. bTransferCharacteristics 1 (BT.709)
  1119. bMatrixCoefficients 4 (SMPTE 170M (BT.601))
  1120. Interface Descriptor:
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  1122. bDescriptorType 4
  1123. bInterfaceNumber 1
  1124. bAlternateSetting 1
  1125. bNumEndpoints 1
  1126. bInterfaceClass 14 Video
  1127. bInterfaceSubClass 2 Video Streaming
  1128. bInterfaceProtocol 0
  1129. iInterface 0
  1130. Endpoint Descriptor:
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  1132. bDescriptorType 5
  1133. bEndpointAddress 0x82 EP 2 IN
  1134. bmAttributes 5
  1135. Transfer Type Isochronous
  1136. Synch Type Asynchronous
  1137. Usage Type Data
  1138. wMaxPacketSize 0x0080 1x 128 bytes
  1139. bInterval 1
  1140. Interface Descriptor:
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  1142. bDescriptorType 4
  1143. bInterfaceNumber 1
  1144. bAlternateSetting 2
  1145. bNumEndpoints 1
  1146. bInterfaceClass 14 Video
  1147. bInterfaceSubClass 2 Video Streaming
  1148. bInterfaceProtocol 0
  1149. iInterface 0
  1150. Endpoint Descriptor:
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  1152. bDescriptorType 5
  1153. bEndpointAddress 0x82 EP 2 IN
  1154. bmAttributes 5
  1155. Transfer Type Isochronous
  1156. Synch Type Asynchronous
  1157. Usage Type Data
  1158. wMaxPacketSize 0x0200 1x 512 bytes
  1159. bInterval 1
  1160. Interface Descriptor:
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  1162. bDescriptorType 4
  1163. bInterfaceNumber 1
  1164. bAlternateSetting 3
  1165. bNumEndpoints 1
  1166. bInterfaceClass 14 Video
  1167. bInterfaceSubClass 2 Video Streaming
  1168. bInterfaceProtocol 0
  1169. iInterface 0
  1170. Endpoint Descriptor:
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  1172. bDescriptorType 5
  1173. bEndpointAddress 0x82 EP 2 IN
  1174. bmAttributes 5
  1175. Transfer Type Isochronous
  1176. Synch Type Asynchronous
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  1179. bInterval 1
  1180. Interface Descriptor:
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  1182. bDescriptorType 4
  1183. bInterfaceNumber 1
  1184. bAlternateSetting 4
  1185. bNumEndpoints 1
  1186. bInterfaceClass 14 Video
  1187. bInterfaceSubClass 2 Video Streaming
  1188. bInterfaceProtocol 0
  1189. iInterface 0
  1190. Endpoint Descriptor:
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  1192. bDescriptorType 5
  1193. bEndpointAddress 0x82 EP 2 IN
  1194. bmAttributes 5
  1195. Transfer Type Isochronous
  1196. Synch Type Asynchronous
  1197. Usage Type Data
  1198. wMaxPacketSize 0x0b00 2x 768 bytes
  1199. bInterval 1
  1200. Interface Descriptor:
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  1202. bDescriptorType 4
  1203. bInterfaceNumber 1
  1204. bAlternateSetting 5
  1205. bNumEndpoints 1
  1206. bInterfaceClass 14 Video
  1207. bInterfaceSubClass 2 Video Streaming
  1208. bInterfaceProtocol 0
  1209. iInterface 0
  1210. Endpoint Descriptor:
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  1212. bDescriptorType 5
  1213. bEndpointAddress 0x82 EP 2 IN
  1214. bmAttributes 5
  1215. Transfer Type Isochronous
  1216. Synch Type Asynchronous
  1217. Usage Type Data
  1218. wMaxPacketSize 0x0c00 2x 1024 bytes
  1219. bInterval 1
  1220. Interface Descriptor:
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  1222. bDescriptorType 4
  1223. bInterfaceNumber 1
  1224. bAlternateSetting 6
  1225. bNumEndpoints 1
  1226. bInterfaceClass 14 Video
  1227. bInterfaceSubClass 2 Video Streaming
  1228. bInterfaceProtocol 0
  1229. iInterface 0
  1230. Endpoint Descriptor:
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  1232. bDescriptorType 5
  1233. bEndpointAddress 0x82 EP 2 IN
  1234. bmAttributes 5
  1235. Transfer Type Isochronous
  1236. Synch Type Asynchronous
  1237. Usage Type Data
  1238. wMaxPacketSize 0x1380 3x 896 bytes
  1239. bInterval 1
  1240. Interface Descriptor:
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  1242. bDescriptorType 4
  1243. bInterfaceNumber 1
  1244. bAlternateSetting 7
  1245. bNumEndpoints 1
  1246. bInterfaceClass 14 Video
  1247. bInterfaceSubClass 2 Video Streaming
  1248. bInterfaceProtocol 0
  1249. iInterface 0
  1250. Endpoint Descriptor:
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  1252. bDescriptorType 5
  1253. bEndpointAddress 0x82 EP 2 IN
  1254. bmAttributes 5
  1255. Transfer Type Isochronous
  1256. Synch Type Asynchronous
  1257. Usage Type Data
  1258. wMaxPacketSize 0x1400 3x 1024 bytes
  1259. bInterval 1
  1260. Interface Association:
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  1262. bDescriptorType 11
  1263. bFirstInterface 2
  1264. bInterfaceCount 2
  1265. bFunctionClass 1 Audio
  1266. bFunctionSubClass 2 Streaming
  1267. bFunctionProtocol 0
  1268. iFunction 3 A4tech USB2.0 Camera (Audio)
  1269. Interface Descriptor:
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  1271. bDescriptorType 4
  1272. bInterfaceNumber 2
  1273. bAlternateSetting 0
  1274. bNumEndpoints 0
  1275. bInterfaceClass 1 Audio
  1276. bInterfaceSubClass 1 Control Device
  1277. bInterfaceProtocol 0
  1278. iInterface 3 A4tech USB2.0 Camera (Audio)
  1279. AudioControl Interface Descriptor:
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  1281. bDescriptorType 36
  1282. bDescriptorSubtype 1 (HEADER)
  1283. bcdADC 1.00
  1284. wTotalLength 39
  1285. bInCollection 1
  1286. baInterfaceNr( 0) 3
  1287. AudioControl Interface Descriptor:
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  1289. bDescriptorType 36
  1290. bDescriptorSubtype 2 (INPUT_TERMINAL)
  1291. bTerminalID 1
  1292. wTerminalType 0x0201 Microphone
  1293. bAssocTerminal 0
  1294. bNrChannels 1
  1295. wChannelConfig 0x0000
  1296. iChannelNames 0
  1297. iTerminal 0
  1298. AudioControl Interface Descriptor:
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  1300. bDescriptorType 36
  1301. bDescriptorSubtype 6 (FEATURE_UNIT)
  1302. bUnitID 2
  1303. bSourceID 1
  1304. bControlSize 1
  1305. bmaControls( 0) 0x00
  1306. bmaControls( 1) 0x03
  1307. Mute Control
  1308. Volume Control
  1309. iFeature 0
  1310. AudioControl Interface Descriptor:
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  1312. bDescriptorType 36
  1313. bDescriptorSubtype 3 (OUTPUT_TERMINAL)
  1314. bTerminalID 3
  1315. wTerminalType 0x0101 USB Streaming
  1316. bAssocTerminal 1
  1317. bSourceID 2
  1318. iTerminal 0
  1319. Interface Descriptor:
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  1321. bDescriptorType 4
  1322. bInterfaceNumber 3
  1323. bAlternateSetting 0
  1324. bNumEndpoints 0
  1325. bInterfaceClass 1 Audio
  1326. bInterfaceSubClass 2 Streaming
  1327. bInterfaceProtocol 0
  1328. iInterface 0
  1329. Interface Descriptor:
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  1331. bDescriptorType 4
  1332. bInterfaceNumber 3
  1333. bAlternateSetting 1
  1334. bNumEndpoints 1
  1335. bInterfaceClass 1 Audio
  1336. bInterfaceSubClass 2 Streaming
  1337. bInterfaceProtocol 0
  1338. iInterface 0
  1339. AudioStreaming Interface Descriptor:
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  1341. bDescriptorType 36
  1342. bDescriptorSubtype 1 (AS_GENERAL)
  1343. bTerminalLink 3
  1344. bDelay 1 frames
  1345. wFormatTag 1 PCM
  1346. AudioStreaming Interface Descriptor:
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  1348. bDescriptorType 36
  1349. bDescriptorSubtype 2 (FORMAT_TYPE)
  1350. bFormatType 1 (FORMAT_TYPE_I)
  1351. bNrChannels 1
  1352. bSubframeSize 2
  1353. bBitResolution 16
  1354. bSamFreqType 7 Discrete
  1355. tSamFreq[ 0] 8000
  1356. tSamFreq[ 1] 11025
  1357. tSamFreq[ 2] 16000
  1358. tSamFreq[ 3] 22050
  1359. tSamFreq[ 4] 32000
  1360. tSamFreq[ 5] 44100
  1361. tSamFreq[ 6] 48000
  1362. Endpoint Descriptor:
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  1364. bDescriptorType 5
  1365. bEndpointAddress 0x83 EP 3 IN
  1366. bmAttributes 1
  1367. Transfer Type Isochronous
  1368. Synch Type None
  1369. Usage Type Data
  1370. wMaxPacketSize 0x0062 1x 98 bytes
  1371. bInterval 4
  1372. bRefresh 0
  1373. bSynchAddress 0
  1374. AudioControl Endpoint Descriptor:
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  1376. bDescriptorType 37
  1377. bDescriptorSubtype 1 (EP_GENERAL)
  1378. bmAttributes 0x01
  1379. Sampling Frequency
  1380. bLockDelayUnits 0 Undefined
  1381. wLockDelay 0 Undefined
  1382. Device Qualifier (for other device speed):
  1383. bLength 10
  1384. bDescriptorType 6
  1385. bcdUSB 2.00
  1386. bDeviceClass 239 Miscellaneous Device
  1387. bDeviceSubClass 2 ?
  1388. bDeviceProtocol 1 Interface Association
  1389. bMaxPacketSize0 64
  1390. bNumConfigurations 1
  1391. Device Status: 0x0000
  1392. (Bus Powered)
  1393. bDescriptorType 4
  1394. bInterfaceNumber 1
  1395. bAlternateSetting 4
  1396. bNumEndpoints 1
  1397. bInterfaceClass 14 Video
  1398. bInterfaceSubClass 2 Video Streaming
  1399. bInterfaceProtocol 0
  1400. iInterface 0
  1401. Endpoint Descriptor:
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  1403. bDescriptorType 5
  1404. bEndpointAddress 0x82 EP 2 IN
  1405. bmAttributes 5
  1406. Transfer Type Isochronous
  1407. Synch Type Asynchronous
  1408. Usage Type Data
  1409. wMaxPacketSize 0x0b00 2x 768 bytes
  1410. bInterval 1
  1411. Interface Descriptor:
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  1413. bDescriptorType 4
  1414. bInterfaceNumber 1
  1415. bAlternateSetting 5
  1416. bNumEndpoints 1
  1417. bInterfaceClass 14 Video
  1418. bInterfaceSubClass 2 Video Streaming
  1419. bInterfaceProtocol 0
  1420. iInterface 0
  1421. Endpoint Descriptor:
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  1423. bDescriptorType 5
  1424. bEndpointAddress 0x82 EP 2 IN
  1425. bmAttributes 5
  1426. Transfer Type Isochronous
  1427. Synch Type Asynchronous
  1428. Usage Type Data
  1429. wMaxPacketSize 0x0c00 2x 1024 bytes
  1430. bInterval 1
  1431. Interface Descriptor:
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  1433. bDescriptorType 4
  1434. bInterfaceNumber 1
  1435. bAlternateSetting 6
  1436. bNumEndpoints 1
  1437. bInterfaceClass 14 Video
  1438. bInterfaceSubClass 2 Video Streaming
  1439. bInterfaceProtocol 0
  1440. iInterface 0
  1441. Endpoint Descriptor:
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  1443. bDescriptorType 5
  1444. bEndpointAddress 0x82 EP 2 IN
  1445. bmAttributes 5
  1446. Transfer Type Isochronous
  1447. Synch Type Asynchronous
  1448. Usage Type Data
  1449. wMaxPacketSize 0x1380 3x 896 bytes
  1450. bInterval 1
  1451. Interface Descriptor:
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  1453. bDescriptorType 4
  1454. bInterfaceNumber 1
  1455. bAlternateSetting 7
  1456. bNumEndpoints 1
  1457. bInterfaceClass 14 Video
  1458. bInterfaceSubClass 2 Video Streaming
  1459. bInterfaceProtocol 0
  1460. iInterface 0
  1461. Endpoint Descriptor:
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  1463. bDescriptorType 5
  1464. bEndpointAddress 0x82 EP 2 IN
  1465. bmAttributes 5
  1466. Transfer Type Isochronous
  1467. Synch Type Asynchronous
  1468. Usage Type Data
  1469. wMaxPacketSize 0x1400 3x 1024 bytes
  1470. bInterval 1
  1471. Interface Association:
  1472. bLength 8
  1473. bDescriptorType 11
  1474. bFirstInterface 2
  1475. bInterfaceCount 2
  1476. bFunctionClass 1 Audio
  1477. bFunctionSubClass 2 Streaming
  1478. bFunctionProtocol 0
  1479. iFunction 3 A4tech USB2.0 Camera (Audio)
  1480. Interface Descriptor:
  1481. bLength 9
  1482. bDescriptorType 4
  1483. bInterfaceNumber 2
  1484. bAlternateSetting 0
  1485. bNumEndpoints 0
  1486. bInterfaceClass 1 Audio
  1487. bInterfaceSubClass 1 Control Device
  1488. bInterfaceProtocol 0
  1489. iInterface 3 A4tech USB2.0 Camera (Audio)
  1490. AudioControl Interface Descriptor:
  1491. bLength 9
  1492. bDescriptorType 36
  1493. bDescriptorSubtype 1 (HEADER)
  1494. bcdADC 1.00
  1495. wTotalLength 39
  1496. bInCollection 1
  1497. baInterfaceNr( 0) 3
  1498. AudioControl Interface Descriptor:
  1499. bLength 12
  1500. bDescriptorType 36
  1501. bDescriptorSubtype 2 (INPUT_TERMINAL)
  1502. bTerminalID 1
  1503. wTerminalType 0x0201 Microphone
  1504. bAssocTerminal 0
  1505. bNrChannels 1
  1506. wChannelConfig 0x0000
  1507. iChannelNames 0
  1508. iTerminal 0
  1509. AudioControl Interface Descriptor:
  1510. bLength 9
  1511. bDescriptorType 36
  1512. bDescriptorSubtype 6 (FEATURE_UNIT)
  1513. bUnitID 2
  1514. bSourceID 1
  1515. bControlSize 1
  1516. bmaControls( 0) 0x00
  1517. bmaControls( 1) 0x03
  1518. Mute Control
  1519. Volume Control
  1520. iFeature 0
  1521. AudioControl Interface Descriptor:
  1522. bLength 9
  1523. bDescriptorType 36
  1524. bDescriptorSubtype 3 (OUTPUT_TERMINAL)
  1525. bTerminalID 3
  1526. wTerminalType 0x0101 USB Streaming
  1527. bAssocTerminal 1
  1528. bSourceID 2
  1529. iTerminal 0
  1530. Interface Descriptor:
  1531. bLength 9
  1532. bDescriptorType 4
  1533. bInterfaceNumber 3
  1534. bAlternateSetting 0
  1535. bNumEndpoints 0
  1536. bInterfaceClass 1 Audio
  1537. bInterfaceSubClass 2 Streaming
  1538. bInterfaceProtocol 0
  1539. iInterface 0
  1540. Interface Descriptor:
  1541. bLength 9
  1542. bDescriptorType 4
  1543. bInterfaceNumber 3
  1544. bAlternateSetting 1
  1545. bNumEndpoints 1
  1546. bInterfaceClass 1 Audio
  1547. bInterfaceSubClass 2 Streaming
  1548. bInterfaceProtocol 0
  1549. iInterface 0
  1550. AudioStreaming Interface Descriptor:
  1551. bLength 7
  1552. bDescriptorType 36
  1553. bDescriptorSubtype 1 (AS_GENERAL)
  1554. bTerminalLink 3
  1555. bDelay 1 frames
  1556. wFormatTag 1 PCM
  1557. AudioStreaming Interface Descriptor:
  1558. bLength 29
  1559. bDescriptorType 36
  1560. bDescriptorSubtype 2 (FORMAT_TYPE)
  1561. bFormatType 1 (FORMAT_TYPE_I)
  1562. bNrChannels 1
  1563. bSubframeSize 2
  1564. bBitResolution 16
  1565. bSamFreqType 7 Discrete
  1566. tSamFreq[ 0] 8000
  1567. tSamFreq[ 1] 11025
  1568. tSamFreq[ 2] 16000
  1569. tSamFreq[ 3] 22050
  1570. tSamFreq[ 4] 32000
  1571. tSamFreq[ 5] 44100
  1572. tSamFreq[ 6] 48000
  1573. Endpoint Descriptor:
  1574. bLength 9
  1575. bDescriptorType 5
  1576. bEndpointAddress 0x83 EP 3 IN
  1577. bmAttributes 1
  1578. Transfer Type Isochronous
  1579. Synch Type None
  1580. Usage Type Data
  1581. wMaxPacketSize 0x0062 1x 98 bytes
  1582. bInterval 4
  1583. bRefresh 0
  1584. bSynchAddress 0
  1585. AudioControl Endpoint Descriptor:
  1586. bLength 7
  1587. bDescriptorType 37
  1588. bDescriptorSubtype 1 (EP_GENERAL)
  1589. bmAttributes 0x01
  1590. Sampling Frequency
  1591. bLockDelayUnits 0 Undefined
  1592. wLockDelay 0 Undefined
  1593. Device Qualifier (for other device speed):
  1594. bLength 10
  1595. bDescriptorType 6
  1596. bcdUSB 2.00
  1597. bDeviceClass 239 Miscellaneous Device
  1598. bDeviceSubClass 2 ?
  1599. bDeviceProtocol 1 Interface Association
  1600. bMaxPacketSize0 64
  1601. bNumConfigurations 1
  1602. Device Status: 0x0000
  1603. (Bus Powered)
  1604. bmAttributes 1
  1605. Transfer Type Isochronous
  1606. Synch Type None
  1607. Usage Type Data
  1608. wMaxPacketSize 0x0062 1x 98 bytes
  1609. bInterval 4
  1610. bRefresh 0
  1611. bSynchAddress 0
  1612. AudioControl Endpoint Descriptor:
  1613. bLength 7
  1614. bDescriptorType 37
  1615. bDescriptorSubtype 1 (EP_GENERAL)
  1616. bmAttributes 0x01
  1617. Sampling Frequency
  1618. bLockDelayUnits 0 Undefined
  1619. wLockDelay 0 Undefined
  1620. Device Qualifier (for other device speed):
  1621. bLength 10
  1622. bDescriptorType 6
  1623. bcdUSB 2.00
  1624. bDeviceClass 239 Miscellaneous Device
  1625. bDeviceSubClass 2 ?
  1626. bDeviceProtocol 1 Interface Association
  1627. bMaxPacketSize0 64
  1628. bNumConfigurations 1
  1629. Device Status: 0x0000
  1630. (Bus Powered)
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