Using library node with libdwf.so in Labview on Linux: possible or not?

[Whemak]

Hi, I am aware that the Waveforms toolkit is only available for the Windows version of Labview, and that it is not available for the Linux version. However, I was wondering if I can still call a specific SDK function using a function node, in LV Linux

Info about my installations and preliminary tests:

• I have LV Community 2024 Linux version installed. It works, and I can in general do direct library calls on .so files using library nodes.
• I have installed the Digilent SDK, and I verified it works using a Python script: I can access specific functions in the libfdwf.so file. So the SDK seems to be correctly installed.
• I can create a library node in LV, indicate the SKD .so file... and something is working, because I can see the correct function symbols...

Symptoms:

• Whatever I do, trying to add a library node with libdwf.so leads to a bad crash of LV. For instance, I tried to use the MSO init function, copying the argument and return types from the Windows version and/or available info (in this case, the return type should be int32, arguments should be CStr, uint32, *uint32, and CStr). Note that in general specifying wrong arguments should not crash LV anyway.

Any clue? Am I making some silly mistake or is it just "not compatible, period"? Or maybe there is some fundamental problem, with calling convention or something similar at a low level? If so, is there any known workaround or it's just impossible?

Thank you!

 

---

 

Added. I just noticed that LV2024 in Linux supports python nodes. Since python can actually access the .so library functions, is it maybe possible to execute an SKD call in a VI... going through python in a python node? Somewhat convoluted, but can it work maybe?

Edited May 15 by Whemak

[DavidLee1997]

I am running into the same issue.  I am using Ubuntu 22.04 LTS and LabVIEW 2023Q3.  So far, I have been unable to use any of the Digilent supplied VIs in Linux.  Even trying to create a call library node causes LabVIEW to crash.

I am able to open Waveforms and connect to my device (Digital Discovery) just fine.

Edited Thursday at 03:22 PM by DavidLee1997