USB-4065 Linux Drivers

[benwjj42]

I am looking into the possibility of utilizing the USB-4065 as the reference device in a calibration system which is under development.  The client which will interface with the USB-4065 runs a Linux OS. Does a version of the NI-DMM linux driver exist or are any linux compatible libraries which supports the USB-4065? 

[this_one_time_at_vancamp · Accepted solution]

benwjj42,

NI-DMM 2.5 is available for Linux. However, this driver is pretty old - it does not support the USB 4065, and most of the Linux distributions it supports are pretty outdated.

Your best bet will likely be to either use a card that is supported by NI-DMM 2.5 such as the PCI-4070, or look into the possibility of bringing Windows into the equation somehow - this would give you the most options.

VanCamp

[benwjj42]

Thank you, it looks like we will have to look into other DVMs.

[kirsch]

Are you on PXI?

Will a PCI / PCIe device do?

Or must it be USB?

[mountainman52]

Has anything changed over the last couple of years?  The readme files for the linux drivers seem to indicate support for the USB-4065, but I think I have installed all the drivers (on Ubuntu 21.04) and the NI hardware configuration utility is telling me the USB devices are "unsupported".  Any help would be appreciated.

[kirsch]

>The readme files for the linux drivers seem to indicate support for the USB-4065,

This is the NI-DMM for Linux/x86 64-bit Architecture Readme, Version 21.3. It supports modern 64-bit Linux distributions.

Unfortunately, USB-4065 is not supported, and it is not listed in the document. Where did you see it listed?

[mountainman52]

Ah, thanks for the link.  I had just gone to the NI-DMM downloads page, selected Linux, and clicked the readme link but missed there were two different readme's available (one for non-Linux and one for Linux).

Are there any plans to support these devices in Linux?  Or is there any other way to communicated with the USB-4065's using a Linux OS / Python?  

[kirsch]

Unfortunately there are no plans at the moment to add support for USB-4065 to Linux.

[user_aaaa]

Hello from 2025,

I have a machine running Debian trixie, and I successfully use it to talk to a PCI NI card with nidaqmx.

However, we also use USB cards, such as a USB-6343, and having a possibility to talk to them would be a deal breaker in convincing people to move away from Windows machines. In those past years, despite NI being a private company (i.e. : you have basically infinite resources), a constant and large push from many side to offer linux compatibility, and the multiple problems offered by proprietary OS like windows, is there a way to connect to those USB cards, and if not, what is the roadmap?

Thank you in advance for your answers!

[santo_13]

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@user_aaaa wrote:

Hello from 2025,

I have a machine running Debian trixie, and I successfully use it to talk to a PCI NI card with nidaqmx.

However, we also use USB cards, such as a USB-6343, and having a possibility to talk to them would be a deal breaker in convincing people to move away from Windows machines. In those past years, despite NI being a private company (i.e. : you have basically infinite resources), a constant and large push from many side to offer linux compatibility, and the multiple problems offered by proprietary OS like windows, is there a way to connect to those USB cards, and if not, what is the roadmap?

Thank you in advance for your answers!

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Unless you're using one of the supported distributions listed here, you're out of luck.
NI Linux Device Drivers 2025 Q4 Compatibility - NI