FlexRIO 2023 Q1 for Linux/x86 64-bit Architecture Readme

January 2023

This file contains installation instructions and compatibility information for FlexRIO 2023 Q1 for Integrated I/O.

You can find more release information on ni.com.


System Requirements

Installation Instructions

Supported Hardware

Linux Limitations


System Requirements

FlexRIO software for the Linux/x86 64-bit architecture has been tested on the following distributions:

  • openSUSE Leap 15.4
  • openSUSE Leap 15.3
  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8
  • CentOS 7
  • Ubuntu 22.04
  • Ubuntu 20.04

FlexRIO requires a 64-bit distribution and does not support 32-bit applications.

Installation Instructions

NI provides a repository add-on for all supported drivers that you can install using your Linux distribution's native package manager.

  1. Visit ni.com/info and enter the Info Code LinuxRepository.
  2. Download the installer for the repository add-on for your Linux distribution.
  3. Install the repository add-on using the rpm command.
  4. Select and install the following product driver packages through your Linux distribution's package manager:
    • For support for all FlexRIO devices: ni-flexrio
    • For support for PXI-795x devices: ni-flexrio-795x
    • For support for PXI-796x devices: ni-flexrio-796x
    • For support for PXI-797x devices: ni-flexrio-797x
    • For support for FlexRIO Integrated IO devices: ni-flexrio-798x
    • For support for C for Integrated IO: libniflexrioapi-devel
    • For support for C for Modular IO: ni-flexrio-modulario-libs-devel

After the driver packages are installed, you must rebuild the new packages for the system kernel. NI recommends that you run the command 'dkms autoinstall' after installation, and before rebooting the system, to install the latest revision of all modules that have been installed for other kernel revisions. After doing so, the installed device drivers will function immediately on the next system start.

Supported Hardware

Visit NI Hardware and Operating System Compatibility to view driver, desktop operating system, and real-time operating system support for individual hardware devices.

To view information for your device:

  • Select your hardware model in the dropdown list on the page to view compatibility information for your device.
  • Type your hardware model number in the dropdown list on the web page to filter the list of available devices.

Note: Some compatibility information may only be available in the archive attached to the NI Hardware and Operating System Compatibility page. For historic driver and OS support information, refer to the readme for the relevant driver version.

Linux Limitations

Some features discussed in the FlexRIO documentation are unavailable on Linux.

  • FlexRIO for Linux supports two application development environments:
    • LabVIEW (64-bit): 2023 Q1 or later
    • C and C++ (gcc)
  • FlexRIO for Linux does not support other ADEs, such as the LabVIEW Real-Time Module, LabWindows/CVI, Microsoft Visual C/C++, or Microsoft Visual Basic.
  • FlexRIO for Linux does not provide the following graphical configurations or debug utilities that are available for other operating systems:
    • Test Panels
    • NI I/O Trace
    • Measurement and Automation Explorer (MAX) graphical configuration utility
      • The NI Hardware Configuration Utility is an alternative to discover and rename devices and is available with the ni-hwcfg-utility package
      • Additionally, all supported FlexRIO hardware can be discovered and renamed through the NI System Configuration (NI-SysCfg) API.
        • Install the following:
          • ni-syscfg-runtime
          • ni-syscfg-devel (for C/C++ development)
          • ni-syscfg-labview-2021-support (for LabVIEW development)
        • Run the ./local/natinst/LabVIEW-2021-64/examples/nisyscfg/Rename Aliases.vi example to change aliases in LabVIEW
      • To read device aliases and general device properties directly from the command line, use the lsni -v or the lsni -u command.
  • FlexRIO driver when used with NI Linux® Real-Time will not support Onboard Signal Processing. This feature remains supported on Windows.