displayusb.txt

可以显示连接到PC上的USB设备的信息！

USB Design By Example: Display currently attached USB Devices

Host Controller \\.\HCD0 found. System name is {36FC9E60-C465-11CF-8056-444553540000}\0004
        Port[1] = No device connected
        Port[2] = No device connected

Host Controller \\.\HCD1 found. System name is {36FC9E60-C465-11CF-8056-444553540000}\0003
        Port[1] = No device connected
        Port[2] = No device connected

Host Controller \\.\HCD2 found. System name is {36FC9E60-C465-11CF-8056-444553540000}\0002
        Port[1] = No device connected
        Port[2] = No device connected

Host Controller \\.\HCD3 found. System name is {36FC9E60-C465-11CF-8056-444553540000}\0001
        Port[1] = I/O device connected
Device Descriptor
  bLength             12
  bDescriptorType     01
  bcdUSB            0110
  bDeviceClass        00
  bDeviceSubClass     00
  bDeviceProtocol     00
  bMaxEP0Size         40
  wVendorID         0dd8
  wProductID        3005
  wDeviceID         0100
  iManufacturer       00
  iProduct            00
  iSerialNumber       00
  bNumConfigurations  01

Configuration Descriptor
NODE System name is {36FC9E60-C465-11CF-8056-444553540000}\0105

  bLength             09
  bDescriptorType     02 = Configuration Header
  wTotalLength      0020
  bNumInterfaces      01
  bConfigValue        01
  iConfiguration      00
  bmAttributes        80
  bMaxPower           32 = 100 mA

  bLength             09
  bDescriptorType     04 = Interface Descriptor
  bInterfaceNum       00
  bAlternateSetting   00
  bNumEndpoints       02
  bInterfaceClass     08 = Storage
  bSubClass           06
  bProtocol           50
  iInterface          00

  bLength             07
  bDescriptorType     05 = Endpoint Descriptor
  bEndpointAddress    82
  bmAttributes        02
  wMaxPacketSize    0040
  bInterval           00

  bLength             07
  bDescriptorType     05 = Endpoint Descriptor
  bEndpointAddress    01
  bmAttributes        02
  wMaxPacketSize    0040
  bInterval           00
        Port[2] = No device connected

Host Controller \\.\HCD4 found. System name is {36FC9E60-C465-11CF-8056-444553540000}\0000
        Port[1] = No device connected
        Port[2] = No device connected
        Port[3] = No device connected
        Port[4] = No device connected
        Port[5] = No device connected
        Port[6] = No device connected
        Port[7] = No device connected
        Port[8] = No device connected