使用 iSerialNumber USB 设备描述符来唯一标识 GoPro 摄像机答案

【问题标题】：Use iSerialNumber USB device descriptor to uniquely identify GoPro Camera使用 iSerialNumber USB 设备描述符来唯一标识 GoPro 摄像机
【发布时间】：2014-09-18 12:52:14
【问题描述】：

我感兴趣的字段是来自以下输出的 iSerial：lsusb -d <idVendor>:<idProduct> -v

非唯一 iSerialNumber 的示例输出：

Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2 ?
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x0402 ALi Corp.
  idProduct          0x9665 Gateway Webcam
  bcdDevice            0.09
  iManufacturer           3 
  iProduct                1 
  iSerial                 0  <-- Three string descriptors exist to provide details of the manufacturer, product and serial number. There is no requirement to have string descriptors. If no string descriptor is present, a index of zero should be used.
  bNumConfigurations      1
  Configuration Descriptor:

据我所知，iSerialNumber 并不总是包含唯一可识别的字符串值。例如 Iphone 和 Ipad 包含此信息，但我测试过的其他一些设备没有此值。根据USB standard，字符串描述符不是强制性的。

拥有 GoPro 的人能否告诉我它是否有序列号的字符串描述符？

我还没有相机。

【问题讨论】：

标签： linux usb udev gopro lsusb

【解决方案1】：

我的返回iSerial 3 123456789ABC，我用Hero3 Black Edition测试过

这是完整的结果：

Bus 001 Device 004: ID 2672:0004  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x2672 
  idProduct          0x0004 
  bcdDevice            0.00
  iManufacturer           1 GoPro
  iProduct                2 Storage
  iSerial                 3 123456789ABC
  bNumConfigurations      2
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower                4mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk-Only
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     2
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower                2mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk-Only
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               0
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  bNumConfigurations      2
Device Status:     0x0001
  Self Powered

【讨论】：

@BenVoigt，是的，正是我的想法！