From owner-freebsd-usb@FreeBSD.ORG  Tue Jan 26 18:36:23 2010
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Date: Tue, 26 Jan 2010 20:36:17 +0200
From: Andriy Gapon <avg@icyb.net.ua>
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To: Hans Petter Selasky <hselasky@c2i.net>
References: <201001101437.37269.hselasky@c2i.net>
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	<201001261837.08651.hselasky@c2i.net>
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Cc: freebsd-multimedia@freebsd.org, freebsd-usb@freebsd.org
Subject: Re: [FreeBSD 8/9] USB webcamd and video4bsd: Call for testing
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on 26/01/2010 19:37 Hans Petter Selasky said the following:
> The string is just too big, so it gets truncated. Send me a dump of the config 
> descriptor for the webcamera. If it says 0x0e for interface class, it's most 
> likely supported.

Here it is:
ugen3.3: <Monitor Webcam (SP2208WFP) Mic-OmniVision Technologies,
Inc.538-2640-07.08.09.6> at u, cfg=0 md=HOST spd=HIGH (480Mbps) pwr=SAVE


 Configuration index 0

    bLength = 0x0009
    bDescriptorType = 0x0002
    wTotalLength = 0x041b
    bNumInterfaces = 0x0004
    bConfigurationValue = 0x0001
    iConfiguration = 0x0000  <no string>
    bmAttributes = 0x0080
    bMaxPower = 0x00fa

    Additional Descriptor

    bLength = 0x08
    bDescriptorType = 0x0b
    bDescriptorSubType = 0x00
     RAW dump:
     0x00 | 0x08, 0x0b, 0x00, 0x02, 0x0e, 0x03, 0x00, 0x02


    Interface 0
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0000
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x000e
      bInterfaceSubClass = 0x0001
      bInterfaceProtocol = 0x0000
      iInterface = 0x0002  <Monitor Webcam (SP2208WFP)>

      Additional Descriptor

      bLength = 0x0d
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x0d, 0x24, 0x01, 0x00, 0x01, 0x6d, 0x00, 0x80,
       0x08 | 0xc3, 0xc9, 0x01, 0x01, 0x01


      Additional Descriptor

      bLength = 0x11
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x11, 0x24, 0x02, 0x01, 0x01, 0x02, 0x00, 0x00,
       0x08 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,
       0x10 | 0x0a

      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x03
       RAW dump:
       0x00 | 0x09, 0x24, 0x03, 0x03, 0x01, 0x01, 0x00, 0x05,
       0x08 | 0x00

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x24
      bDescriptorSubType = 0x04
       RAW dump:
       0x00 | 0x07, 0x24, 0x04, 0x04, 0x01, 0x01, 0x00


      Additional Descriptor

      bLength = 0x0b
      bDescriptorType = 0x24
      bDescriptorSubType = 0x05
       RAW dump:
       0x00 | 0x0b, 0x24, 0x05, 0x05, 0x04, 0x00, 0x00, 0x02,
       0x08 | 0x7f, 0x55, 0x00


      Additional Descriptor

      bLength = 0x1a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x1a, 0x24, 0x06, 0x07, 0x8a, 0x0f, 0x88, 0xdd,
       0x08 | 0xba, 0x1c, 0x54, 0x49, 0x8a, 0x25, 0xf7, 0x87,
       0x10 | 0x59, 0x67, 0xf0, 0xf7, 0x01, 0x01, 0x01, 0x01,
       0x18 | 0x01, 0x00


      Additional Descriptor

      bLength = 0x1a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x1a, 0x24, 0x06, 0x06, 0x08, 0xf7, 0x4a, 0x8e,
       0x08 | 0xab, 0x51, 0x25, 0x46, 0xa2, 0xa2, 0x31, 0xaa,
       0x10 | 0xb3, 0x8e, 0x59, 0xda, 0x01, 0x01, 0x05, 0x01,
       0x18 | 0x01, 0x00


     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0083  <IN>
        bmAttributes = 0x0003  <INTERRUPT>
        wMaxPacketSize = 0x0008
        bInterval = 0x0010
        bRefresh = 0x0000
        bSynchAddress = 0x0000

      Additional Descriptor

      bLength = 0x05
      bDescriptorType = 0x25
      bDescriptorSubType = 0x03
       RAW dump:
       0x00 | 0x05, 0x25, 0x03, 0x08, 0x00



    Interface 1
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0000
      bInterfaceClass = 0x000e
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x0f
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x0f, 0x24, 0x01, 0x02, 0x97, 0x02, 0x81, 0x00,
       0x08 | 0x03, 0x00, 0x00, 0x00, 0x01, 0x04, 0x00


      Additional Descriptor

      bLength = 0x0b
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x0b, 0x24, 0x06, 0x01, 0x09, 0x01, 0x01, 0x00,
       0x08 | 0x00, 0x00, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x2a, 0x24, 0x07, 0x01, 0x00, 0x80, 0x02, 0xe0,
       0x08 | 0x01, 0x00, 0x00, 0x77, 0x01, 0x00, 0x00, 0xca,
       0x10 | 0x08, 0x00, 0x60, 0x09, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x2a, 0x24, 0x07, 0x02, 0x00, 0xa0, 0x00, 0x78,
       0x08 | 0x00, 0x00, 0x70, 0x17, 0x00, 0x00, 0xa0, 0x8c,
       0x10 | 0x00, 0x00, 0x96, 0x00, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x2a, 0x24, 0x07, 0x03, 0x00, 0xb0, 0x00, 0x90,
       0x08 | 0x00, 0x00, 0xf0, 0x1e, 0x00, 0x00, 0xa0, 0xb9,
       0x10 | 0x00, 0x00, 0xc6, 0x00, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x2a, 0x24, 0x07, 0x04, 0x00, 0x40, 0x01, 0xf0,
       0x08 | 0x00, 0x00, 0xc0, 0x5d, 0x00, 0x00, 0x80, 0x32,
       0x10 | 0x02, 0x00, 0x58, 0x02, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x2a, 0x24, 0x07, 0x05, 0x00, 0x60, 0x01, 0x20,
       0x08 | 0x01, 0x00, 0xc0, 0x7b, 0x00, 0x00, 0x80, 0xe6,
       0x10 | 0x02, 0x00, 0x18, 0x03, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x2a, 0x24, 0x07, 0x06, 0x00, 0x20, 0x03, 0x58,
       0x08 | 0x02, 0x00, 0xf0, 0x49, 0x02, 0x00, 0xa0, 0xbb,
       0x10 | 0x0d, 0x00, 0xa6, 0x0e, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x22
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x22, 0x24, 0x07, 0x07, 0x00, 0x00, 0x04, 0x00,
       0x08 | 0x03, 0x00, 0x00, 0xc0, 0x03, 0x00, 0x00, 0x40,
       0x10 | 0x0b, 0x00, 0x00, 0x18, 0x00, 0x40, 0x42, 0x0f,
       0x18 | 0x00, 0x02, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x20 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x22
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x22, 0x24, 0x07, 0x08, 0x00, 0x00, 0x05, 0x00,
       0x08 | 0x04, 0x00, 0x00, 0x40, 0x06, 0x00, 0x00, 0xc0,
       0x10 | 0x12, 0x00, 0x00, 0x28, 0x00, 0x40, 0x42, 0x0f,
       0x18 | 0x00, 0x02, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x20 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x22
      bDescriptorType = 0x24
      bDescriptorSubType = 0x07
       RAW dump:
       0x00 | 0x22, 0x24, 0x07, 0x09, 0x00, 0x40, 0x06, 0xb0,
       0x08 | 0x04, 0x00, 0x00, 0x27, 0x09, 0x00, 0x40, 0x77,
       0x10 | 0x1b, 0x00, 0x98, 0x3a, 0x00, 0x40, 0x42, 0x0f,
       0x18 | 0x00, 0x02, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x20 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x06
      bDescriptorType = 0x24
      bDescriptorSubType = 0x0d
       RAW dump:
       0x00 | 0x06, 0x24, 0x0d, 0x01, 0x01, 0x04


      Additional Descriptor

      bLength = 0x1b
      bDescriptorType = 0x24
      bDescriptorSubType = 0x04
       RAW dump:
       0x00 | 0x1b, 0x24, 0x04, 0x02, 0x06, 0x59, 0x55, 0x59,
       0x08 | 0x32, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00,
       0x10 | 0xaa, 0x00, 0x38, 0x9b, 0x71, 0x10, 0x01, 0x00,
       0x18 | 0x00, 0x00, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x05
       RAW dump:
       0x00 | 0x2a, 0x24, 0x05, 0x01, 0x00, 0x80, 0x02, 0xe0,
       0x08 | 0x01, 0x00, 0x00, 0x77, 0x01, 0x00, 0x00, 0xca,
       0x10 | 0x08, 0x00, 0x60, 0x09, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x05
       RAW dump:
       0x00 | 0x2a, 0x24, 0x05, 0x02, 0x00, 0xa0, 0x00, 0x78,
       0x08 | 0x00, 0x00, 0x70, 0x17, 0x00, 0x00, 0xa0, 0x8c,
       0x10 | 0x00, 0x00, 0x96, 0x00, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x05
       RAW dump:
       0x00 | 0x2a, 0x24, 0x05, 0x03, 0x00, 0xb0, 0x00, 0x90,
       0x08 | 0x00, 0x00, 0xf0, 0x1e, 0x00, 0x00, 0xa0, 0xb9,
       0x10 | 0x00, 0x00, 0xc6, 0x00, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x05
       RAW dump:
       0x00 | 0x2a, 0x24, 0x05, 0x04, 0x00, 0x40, 0x01, 0xf0,
       0x08 | 0x00, 0x00, 0xc0, 0x5d, 0x00, 0x00, 0x80, 0x32,
       0x10 | 0x02, 0x00, 0x58, 0x02, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x2a
      bDescriptorType = 0x24
      bDescriptorSubType = 0x05
       RAW dump:
       0x00 | 0x2a, 0x24, 0x05, 0x05, 0x00, 0x60, 0x01, 0x20,
       0x08 | 0x01, 0x00, 0xc0, 0x7b, 0x00, 0x00, 0x80, 0xe6,
       0x10 | 0x02, 0x00, 0x18, 0x03, 0x00, 0x15, 0x16, 0x05,
       0x18 | 0x00, 0x04, 0x15, 0x16, 0x05, 0x00, 0x2a, 0x2c,
       0x20 | 0x0a, 0x00, 0x40, 0x42, 0x0f, 0x00, 0x80, 0x84,
       0x28 | 0x1e, 0x00


      Additional Descriptor

      bLength = 0x22
      bDescriptorType = 0x24
      bDescriptorSubType = 0x05
       RAW dump:
       0x00 | 0x22, 0x24, 0x05, 0x06, 0x00, 0x40, 0x06, 0xb0,
       0x08 | 0x04, 0x00, 0xe0, 0x93, 0x04, 0x00, 0xc0, 0x27,
       0x10 | 0x09, 0x00, 0xf2, 0x28, 0x00, 0x80, 0x84, 0x1e,
       0x18 | 0x00, 0x02, 0x80, 0x84, 0x1e, 0x00, 0x00, 0x09,
       0x20 | 0x3d, 0x00


      Additional Descriptor

      bLength = 0x06
      bDescriptorType = 0x24
      bDescriptorSubType = 0x0d
       RAW dump:
       0x00 | 0x06, 0x24, 0x0d, 0x01, 0x01, 0x04



    Interface 1 Alt 1
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0001
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x000e
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x00c0
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 1 Alt 2
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0002
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x000e
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0200
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 1 Alt 3
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0003
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x000e
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0320
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 1 Alt 4
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0004
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x000e
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0a80
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 1 Alt 5
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0005
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x000e
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x0be0
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000


    Interface 1 Alt 6
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0001
      bAlternateSetting = 0x0006
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x000e
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0081  <IN>
        bmAttributes = 0x0005  <ASYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x13fc
        bInterval = 0x0001
        bRefresh = 0x0000
        bSynchAddress = 0x0000

      Additional Descriptor

      bLength = 0x08
      bDescriptorType = 0x0b
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x08, 0x0b, 0x02, 0x02, 0x01, 0x01, 0x00, 0x00



    Interface 2
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0002
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0000
      bInterfaceClass = 0x0001
      bInterfaceSubClass = 0x0001
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x09, 0x24, 0x01, 0x00, 0x01, 0x2b, 0x00, 0x01,
       0x08 | 0x03

      Additional Descriptor

      bLength = 0x0c
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x0c, 0x24, 0x02, 0x01, 0x05, 0x02, 0x00, 0x02,
       0x08 | 0x00, 0x00, 0x00, 0x00


      Additional Descriptor

      bLength = 0x09
      bDescriptorType = 0x24
      bDescriptorSubType = 0x03
       RAW dump:
       0x00 | 0x09, 0x24, 0x03, 0x02, 0x01, 0x01, 0x00, 0x03,
       0x08 | 0x00

      Additional Descriptor

      bLength = 0x0d
      bDescriptorType = 0x24
      bDescriptorSubType = 0x06
       RAW dump:
       0x00 | 0x0d, 0x24, 0x06, 0x03, 0x01, 0x02, 0x43, 0x02,
       0x08 | 0x00, 0x00, 0x00, 0x00, 0x00



    Interface 3
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0003
      bAlternateSetting = 0x0000
      bNumEndpoints = 0x0000
      bInterfaceClass = 0x0001
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>


    Interface 3 Alt 1
      bLength = 0x0009
      bDescriptorType = 0x0004
      bInterfaceNumber = 0x0003
      bAlternateSetting = 0x0001
      bNumEndpoints = 0x0001
      bInterfaceClass = 0x0001
      bInterfaceSubClass = 0x0002
      bInterfaceProtocol = 0x0000
      iInterface = 0x0000  <no string>

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x24
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x07, 0x24, 0x01, 0x02, 0x01, 0x01, 0x00


      Additional Descriptor

      bLength = 0x23
      bDescriptorType = 0x24
      bDescriptorSubType = 0x02
       RAW dump:
       0x00 | 0x23, 0x24, 0x02, 0x01, 0x02, 0x02, 0x10, 0x09,
       0x08 | 0x80, 0xbb, 0x00, 0x44, 0xac, 0x00, 0x00, 0x7d,
       0x10 | 0x00, 0xc0, 0x5d, 0x00, 0x22, 0x56, 0x00, 0x80,
       0x18 | 0x3e, 0x00, 0xe0, 0x2e, 0x00, 0x11, 0x2b, 0x00,
       0x20 | 0x40, 0x1f, 0x00


     Endpoint 0
        bLength = 0x0009
        bDescriptorType = 0x0005
        bEndpointAddress = 0x0084  <IN>
        bmAttributes = 0x000d  <SYNC-ISOCHRONOUS>
        wMaxPacketSize = 0x00c0
        bInterval = 0x0004
        bRefresh = 0x0000
        bSynchAddress = 0x0000

      Additional Descriptor

      bLength = 0x07
      bDescriptorType = 0x25
      bDescriptorSubType = 0x01
       RAW dump:
       0x00 | 0x07, 0x25, 0x01, 0x01, 0x00, 0x00, 0x00


-- 
Andriy Gapon