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USB Serial Number Retrieval Methods
emmet-gray.com/Articles/USB_SerialNumbers.htmlYapay zekadan makale özeti
- WMI Method
- Uses relationships between Win32_LogicalDisk, Win32_DiskPartition, and Win32_DiskDrive classes
- Simple but slow implementation method
- Vista requires workaround due to Win32_Disk class bug
- Win32 API Method
- Uses SetupAPI.DLL and DeviceIoControl API functions
- Requires finding correct device in device tree
- Uses DeviceDescriptor to get serial number index
- Requires zero-filling memory allocation for string values
- More complex but faster implementation method
- Implementation Details
- Device numbers are unique by type
- USB hubs typically have multiple internal ports
- Driver Key Name used to get Instance ID
- Device Descriptor contains string value index
- String Descriptor requires special zero-filling technique