Computer doesn't recognize USB-Raw device

[ee_engineer]

I have followed EXACTLY the same procedure for setting up a USB Raw device for VISA control as described on the NI support website. I am using VISA v3.2. But when I plug in my USB device, the driver that it associates to the device is the USB HID driver which is not what I want. I have been able to setup the same device on other identical computers (OS, VISA version, etc. was the same) without issue. I have tried multiple times going through the process after removing all USB HID drivers but have not had any success. Any ideas?

[JohnM 64]

Hi ee_engineer,

Just to make sure we're on the same page, are you using the procedure detailed in the following link?

Knowledge Base 325APJ2Y: How Can I Communicate With a Device Using NI-VISA USB RAW Mode?

It sounds like you are experienced with this procedure, so I am not sure without more information the reason that the process is not working in this case. A few recommendations I have are to ensure that you are using the correct VID and PID in the Device Driver Development Wizard, and that it is being saved in the correct place (the Windows INF file). Once this is accomplished, the device should then be detected as a new hardware with NI-VISA as the driver. If you have any further specific questions regarding this, please post them and we will continue troubleshooting this.

John M
Applications Engineer

[ee_engineer]

After a lot of investigation and mostly experimenting, I got the computer to recognize my USB-Raw device. As it turned out, I had to go directly into the device properties after I attached my device (and the computer recognized it as a USB HID) and manually switch/re-install my device driver from the USB HID driver to my USB VISA driver I created. I haven't had any more issues with my device. I can now unplug/replug my device into my computer without issue. I am pretty sure though that if I were to uninstall my device and then replug it into my computer, the computer would recognize it as a USB HID...Weird.