Once you have the correct package, follow this guide to avoid errors.
Yes, the domain itself is legitimate for drivers. However, never visit misspelled versions (e.g., smardip, smartdipx). Always ensure the URL is exactly smartdip.net.
To communicate with the driver from your own software:
Python (Linux, via pyusb):
import usb.core
dev = usb.core.find(idVendor=0x1209, idProduct=0xSmartDIP)
dev.ctrl_transfer(bmRequestType=0x40, bRequest=0x01, wValue=0x0001)
Windows (Win32 API):
Use CreateFile on \\.\SmartDIP0 and DeviceIoControl with custom IOCTL codes defined in the driver's header.