usb raw communication

[elxemita]

hello, I'm working in a data adquisition system and I want to communicate via USB 2.0. In labview's web there is no information about how to do it, only says that you can do it with VISA( I have already install my device using DDW of labview). If someone kwows how to send to or receive data from the device I will be very thankfull for your help. It is enough if the application sends or recieve only one byte. thankx anyway

[Dennis_Knutson]

Have you read this? If you have and are at the point of trying to send and receive data, then you need the vendor of the USB device to provide details on using it with USB RAW. You won't find any details on NI's site because every device is different. Usually though, the vendor provides some other means of communication. This is usually a DLL that you can call. If the vendor does provide a driver, you do not create the inf file with the DDW. Who makes the device? If it's an NI USB DAQ device, you use DAQmx and not VISA.