Agilent E5810A and NI-VISA 21.5 for linux - resource string is invalid

[AndyTailored]

This has come up several times over the years.  There may be something I am missing in the earlier posts. 

The E5810A is a LAN-GPIB/serial gateway.  It wants to see VISA resources in the form 

TCIP0::<E5810A IP>::gpib0,<gpib address>::INSTR

This gives error 0xBFFF0012, "Invalid resource reference specified.  Parsing error."

NI-VISA apparently expects 

TCIP0::<E5810A IP>::GPIB0::<gpib address>::INSTR

Note that the E5810A expects a comma between "gpib" and <gpib address>, whereas NI-VISA wants to see the double colon.  

Earlier posts mention that NI-VISA greater than 5.2 had this problem.  I think it got fixed in Windows.  What about Linux?

I don't see any release notes for NI-VISA 21.5 for linux, so I don't know how to find out if this has ever been addressed.  

Thanks

Ed K

[AndyTailored]

Interesting - I just tried it with pyvisa and it works.  I can *IDN? all of my instruments.  NI-VISA does not return an error using that path.  Is it the GUI doing it?  Weird.