ch9340 cdc USB转串口USB描述符
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=========================== USB Port1 ===========================
Connection Status : 0x01 (Device is connected)
Port Chain : 1-1
======================== USB Device ========================
+++++++++++++++++ Device Information ++++++++++++++++++
Device Description : USB CDC-Serial
Device ID : USB\VID_1A86&PID_8040\20191234
Hardware IDs : USB\VID_1A86&PID_8040&REV_3000 USB\VID_1A86&PID_8040
Driver KeyName : -
Legacy BusType : PNPBus
Enumerator : USB
Location Info : Port_#0001.Hub_#0001
Location IDs : PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(1)
Container ID : {2c66c15e-82a1-5645-a579-a0de4feec3d4}
Manufacturer Info : -
Capabilities : 0x14 (Removable, UniqueID)
Status : 0x01806400 (DN_HAS_PROBLEM, DN_DISABLEABLE, DN_REMOVABLE, DN_NT_ENUMERATOR, DN_NT_DRIVER)
Problem Code : 28 (CM_PROB_FAILED_INSTALL)
Power State : D3 (supported: D0, D3, wake from D0)
---------------- Connection Information ---------------
Connection Index : 0x01 (1)
Connection Status : 0x01 (DeviceConnected)
Current Config Value : 0x00
Device Address : 0x3C (60)
Is Hub : 0x00 (no)
Number Of Open Pipes : 0x00 (0)
Device Bus Speed : 0x01 (Full-Speed)
Data (HexDump) : 01 00 00 00 12 01 10 01 02 00 00 08 86 1A 40 80 ..............@.
00 30 00 02 03 01 00 01 00 3C 00 00 00 00 00 01 .0.......<......
00 00 00 ...
---------------------- Device Descriptor ----------------------
bLength : 0x12 (18 bytes)
bDescriptorType : 0x01 (Device Descriptor)
bcdUSB : 0x110 (USB Version 1.10)
bDeviceClass : 0x02 (Communications and CDC Control)
bDeviceSubClass : 0x00
bDeviceProtocol : 0x00 (No class specific protocol required)
bMaxPacketSize0 : 0x08 (8 bytes)
idVendor : 0x1A86
idProduct : 0x8040
bcdDevice : 0x3000
iManufacturer : 0x00 (No String Descriptor)
iProduct : 0x02 (String Descriptor 2)
iSerialNumber : 0x03 (String Descriptor 3)
bNumConfigurations : 0x01 (1 Configuration)
Data (HexDump) : 12 01 10 01 02 00 00 08 86 1A 40 80 00 30 00 02 ..........@..0..
03 01 ..
------------------ Configuration Descriptor -------------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x02 (Configuration Descriptor)
wTotalLength : 0x0043 (67 bytes)
bNumInterfaces : 0x02 (2 Interfaces)
bConfigurationValue : 0x01 (Configuration 1)
iConfiguration : 0x00 (No String Descriptor)
bmAttributes : 0x80
D7: Reserved, set 1 : 0x01
D6: Self Powered : 0x00 (no)
D5: Remote Wakeup : 0x00 (no)
D4..0: Reserved, set 0 : 0x00
MaxPower : 0x30 (96 mA)
Data (HexDump) : 09 02 43 00 02 01 00 80 30 09 04 00 00 01 02 02 ..C.....0.......
01 00 05 24 00 10 01 04 24 02 02 05 24 06 00 01 ...$....$...$...
05 24 01 01 00 07 05 81 03 08 00 FF 09 04 01 00 .$..............
02 0A 00 00 00 07 05 02 02 20 00 00 07 05 82 02 ......... ......
20 00 00 ..
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x00
bAlternateSetting : 0x00
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x02 (Communications and CDC Control)
bInterfaceSubClass : 0x02 (Abstract Control Model)
bInterfaceProtocol : 0x01 (AT Commands defined by ITU-T V.250 etc)
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 00 00 01 02 02 01 00 .........
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x00 (Header Functional Descriptor)
bcdCDC : 0x110 (CDC Version 1.10)
Data (HexDump) : 05 24 00 10 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x04 (4 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x02 (Abstract Control Management Functional Descriptor)
bmCapabilities : 0x02
D7..4: : 0x00 (Reserved)
D3 : : 0x00 (not supports the notification Network_Connection)
D2 : : 0x00 (not supports the request Send_Break)
D1 : : 0x01 (supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State)
D0 : : 0x00 (not supports the request combination of Set_Comm_Feature, Clear_Comm_Feature, and Get_Comm_Feature)
Data (HexDump) : 04 24 02 02 .$..
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x06 (Union Functional Descriptor)
bControlInterface : 0x00
bSubordinateInterface[0] : 0x01
Data (HexDump) : 05 24 06 00 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x01 (Call Management Functional Descriptor)
bmCapabilities : 0x01
D7..2: : 0x00 (Reserved)
D1 : : 0x00 (sends/receives call management information only over the Communication Class interface)
D0 : : 0x01 (handles call management itself)
bDataInterface : 0x00
Data (HexDump) : 05 24 01 01 00 .$...
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x81 (Direction=IN EndpointID=1)
bmAttributes : 0x03 (TransferType=Interrupt)
wMaxPacketSize : 0x0008 (8 bytes)
bInterval : 0xFF (255 ms)
Data (HexDump) : 07 05 81 03 08 00 FF .......
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x00
bNumEndpoints : 0x02 (2 Endpoints)
bInterfaceClass : 0x0A (CDC-Data)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 01 00 02 0A 00 00 00 .........
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x02 (Direction=OUT EndpointID=2)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0020 (32 bytes)
bInterval : 0x00 (ignored)
Data (HexDump) : 07 05 02 02 20 00 00 .... ..
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x82 (Direction=IN EndpointID=2)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0020 (32 bytes)
bInterval : 0x00 (ignored)
Data (HexDump) : 07 05 82 02 20 00 00 .... ..
-------------------- String Descriptors -------------------
String descriptors are not available (because the device has problem code CM_PROB_FAILED_INSTALL)
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