Are you trying to interface with a National Instruments USB device or a third-party device?
NI USB Device:
For our USB devices, we do provide NI-DAQ driver support. Installation of the driver will automatically include installation of example programs as well as DAQ VIs for hardware communication.
Third-Party USB Devices:
USB communication is supported with NI-VISA 3.0 and later on Windows. Please refer to the following 2 links below for more information regarding how this is done:
Can I Use Third-Party USB or IEEE 1394 (FireWire) Devices with LabVIEW or LabWindows/CVI?
Developer Zone Tutorial: Using NI-VISA to Control Your USB Device
Hope this helps. Best of luck!
