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pyvisa / pyvisa-py

A pure python PyVISA backend
https://pyvisa-py.readthedocs.io
MIT License
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Devices are not listed. rm.list_resources() #98

Closed M1chka closed 7 years ago

M1chka commented 7 years ago

Fix: I forgot to put @py within visa.ResourceManager('@py').

So since a month I am using linux as my main OS on my work/programming notebook. With Windows I got pyvisa working very easily but I have some problems using Ubuntu 16.04. I connect a GPIB device and a USB device and both are not showing when using rm.list_resources(). I only get '()' returned when using that command. Linux-GPIB should work fine because using ibtest I can control the GPIB device and using USBTMC I can control the usb device. I installed pyvisa, pyvisa-py and PyUSB (also tried github master) using pip but no luck yet. sudo python -m visa info gives:

Machine Details:
   Platform ID:    Linux-4.4.0-78-generic-x86_64-with-elementary-0.4.1-loki
   Processor:      x86_64

Python:
   Implementation: CPython
   Executable:     /usr/bin/python
   Version:        2.7.12
   Compiler:       GCC 5.4.0 20160609
   Bits:           64bit
   Build:          Nov 19 2016 06:48:10 (#default)
   Unicode:        UCS4

PyVISA Version: 1.8

Backends:
   ni:
      Version: 1.8 (bundled with PyVISA)
      #1: /usr/lib/x86_64-linux-gnu/libvisa.so.0.0.0:
         found by: auto
         bitness: 64
         Could not get more info:
            VI_ERROR_NSUP_ATTR (-1073807331): The specified attribute is not defined or supported by the referenced object.
   py:
      Version: 0.2
      ASRL INSTR: Available via PySerial (3.0.1)
      TCPIP INSTR: Available 
      USB RAW: Available via PyUSB (1.0.0). Backend: libusb1
      USB INSTR: Available via PyUSB (1.0.0). Backend: libusb1
      GPIB INSTR: Available 
      TCPIP SOCKET: Available

Could someone help me maybe help me getting this thing to work. I would really appreciate it.

Best, Michail