BOOL DeviceIoControl( (HANDLE) hDevice, // handle to device IOCTL_STORAGE_GET_MEDIA_SERIAL_NUMBER, // dwIoControlCode NULL, // lpInBuffer 0, // nInBufferSize (LPVOID) lpOutBuffer, // output buffer (DWORD) nOutBufferSize, // size of output buffer (LPDWORD) lpBytesReturned, // number of bytes returned (LPOVERLAPPED) lpOverlapped // OVERLAPPED structure ); Parameters hDevice A handle to the device. To obtain a device handle, call the function. DwIoControlCode The control code for the operation. Use IOCTL_STORAGE_GET_MEDIA_SERIAL_NUMBER for this operation. LpInBuffer Not used with this operation; set to NULL. NInBufferSize Not used with this operation; set to zero. LpOutBuffer A pointer to a structure that receives the serial number.

Retrieves the serial number of a USB device. To perform this operation, call the DeviceIoControl function with the following parameters. For overlapped operations. Getting the serial number of a USB device in Windows is a lot harder than it should be. ( But it’s a lot easier than getting the USB serial number on Os X!). BOOL WINAPI DeviceIoControl( _In_ HANDLE hDevice, _In_ DWORD dwIoControlCode, _In_opt_ LPVOID.

NOutBufferSize The size of the output buffer, in bytes. LpBytesReturned A pointer to a variable that receives the size of the data stored in the output buffer, in bytes. If the output buffer is too small, the call fails, returns ERROR_INSUFFICIENT_BUFFER, and lpBytesReturned is zero. Cable Basics. If lpOverlapped is NULL, lpBytesReturned cannot be NULL. Even when an operation returns no output data and lpOutBuffer is NULL, makes use of lpBytesReturned.

After such an operation, the value of lpBytesReturned is meaningless. If lpOverlapped is not NULL, lpBytesReturned can be NULL. If this parameter is not NULL and the operation returns data, lpBytesReturned is meaningless until the overlapped operation has completed. To retrieve the number of bytes returned, call. If hDevice is associated with an I/O completion port, you can retrieve the number of bytes returned by calling. LpOverlapped A pointer to an structure. If hDevice was opened without specifying FILE_FLAG_OVERLAPPED, lpOverlapped is ignored.

If hDevice was opened with the FILE_FLAG_OVERLAPPED flag, the operation is performed as an overlapped (asynchronous) operation. In this case, lpOverlapped must point to a valid structure that contains a handle to an event object. Otherwise, the function fails in unpredictable ways. For overlapped operations, returns immediately, and the event object is signaled when the operation has been completed. Otherwise, the function does not return until the operation has been completed or an error occurs. Bts Architecture Pdf. Return value If the operation completes successfully, returns a nonzero value.