如何确定连接的USB设备是否为USB闪存盘？

Question

你如何确定哪种媒体附加到系统？

我有Ubuntu,当我插入SD卡时,它注意到它实际上是一张SD卡.USB记忆棒数量相同.

但是,如何在插入新设备时确定低级别,它是什么类型的？

似乎没有任何信息可以找到.

编辑:只是为了更完整:我说它是一个Linux环境,但实际上它是嵌入式环境中的Android.我将它标记为Linux,因为我确实试图从命令行进行检查.

udevadm命令不可用,lsusb -vv显示:

Bus 001 Device 001: ID 1d6b:0002
Bus 001 Device 002: ID 0424:2640
Bus 001 Device 003: ID 0424:4040
Bus 002 Device 001: ID 1d6b:0001

这是非常少的信息.

Answer 1

该lsusb命令列出系统中注册的USB设备.尝试lsusb -vv更详细的信息.您可以使用该-s标志来定位特定设备.

更新:这取决于您的帐户的权限,一些细节需要更高的权限.例如,这是我鼠标的输出:

Bus 003 Device 003: ID 04f3:0230 Elan Microelectronics Corp. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         8
  idVendor           0x04f3 Elan Microelectronics Corp.
  idProduct          0x0230 
  bcdDevice           24.58
  iManufacturer           0 
  iProduct                2 USB+PS/2 Optical Mouse
  iSerial                 0 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           34
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         3 Human Interface Device
      bInterfaceSubClass      1 Boot Interface Subclass
      bInterfaceProtocol      2 Mouse
      iInterface              0 
        HID Device Descriptor:
          bLength                 9
          bDescriptorType        33
          bcdHID               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      52
         Report Descriptors: 
           ** UNAVAILABLE **
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval              10
Device Status:     0x0000

Answer 2

运行这样的命令可能很有用：

$ udevadm info -a -p $(udevadm info -q path -n /dev/sdX)

输出可能如下所示：

[...]
  looking at parent device '/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.5':
    KERNELS=="1-1.5"
    SUBSYSTEMS=="usb"
    DRIVERS=="usb"
    ATTRS{configuration}==""
    ATTRS{bNumInterfaces}==" 1"
    ATTRS{bConfigurationValue}=="1"
    ATTRS{bmAttributes}=="80"
    ATTRS{bMaxPower}=="200mA"
    ATTRS{urbnum}=="6519"
    ATTRS{idVendor}=="13fe"
    ATTRS{idProduct}=="1d00"
    ATTRS{bcdDevice}=="0100"
    ATTRS{bDeviceClass}=="00"
    ATTRS{bDeviceSubClass}=="00"
    ATTRS{bDeviceProtocol}=="00"
    ATTRS{bNumConfigurations}=="1"
    ATTRS{bMaxPacketSize0}=="64"
    ATTRS{speed}=="480"
    ATTRS{busnum}=="1"
    ATTRS{devnum}=="3"
    ATTRS{devpath}=="1.5"
    ATTRS{version}==" 2.00"
    ATTRS{maxchild}=="0"
    ATTRS{quirks}=="0x0"
    ATTRS{avoid_reset_quirk}=="0"
    ATTRS{authorized}=="1"
    ATTRS{manufacturer}=="Kingston"
    ATTRS{product}=="DataTraveler 2.0"
    ATTRS{serial}=="5B7A08A1010F"
[...]

您可以看到一些ATTRS描述设备的内容。