[Bug 266840] umodem: CH552 is not attached

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 05 Oct 2022 21:44:20 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=266840

--- Comment #4 from Tomoyuki Sakurai <trombik1973@gmail.com> ---
below is dump_device_desc when the bootloader is running.

ugen0.6: <vendor 0x4348 product 0x55e0> at usbus0, cfg=0 md=HOST spd=FULL
(12Mbps) pwr=ON (100mA)

  bLength = 0x0012 
  bDescriptorType = 0x0001 
  bcdUSB = 0x0110 
  bDeviceClass = 0x00ff  <Vendor specific>
  bDeviceSubClass = 0x0080 
  bDeviceProtocol = 0x0055 
  bMaxPacketSize0 = 0x0008 
  idVendor = 0x4348 
  idProduct = 0x55e0 
  bcdDevice = 0x0250 
  iManufacturer = 0x0000  <no string>
  iProduct = 0x0000  <no string>
  iSerialNumber = 0x0000  <no string>
  bNumConfigurations = 0x0001 


 Configuration index 0

    bLength = 0x0009 
    bDescriptorType = 0x0002 
    wTotalLength = 0x0020 
    bNumInterfaces = 0x0001 
    bConfigurationValue = 0x0001 
    iConfiguration = 0x0000  <no string>
    bmAttributes = 0x0080 
    bMaxPower = 0x0032 

    Interface 0
      bLength = 0x0009 
      bDescriptorType = 0x0004 
      bInterfaceNumber = 0x0000 
      bAlternateSetting = 0x0000 
      bNumEndpoints = 0x0002 
      bInterfaceClass = 0x00ff  <Vendor specific>
      bInterfaceSubClass = 0x0080 
      bInterfaceProtocol = 0x0055 
      iInterface = 0x0000  <no string>

     Endpoint 0
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0082  <IN>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0040 
        bInterval = 0x0000 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000 

     Endpoint 1
        bLength = 0x0007 
        bDescriptorType = 0x0005 
        bEndpointAddress = 0x0002  <OUT>
        bmAttributes = 0x0002  <BULK>
        wMaxPacketSize = 0x0040 
        bInterval = 0x0000 
        bRefresh = 0x0000 
        bSynchAddress = 0x0000

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