Expand description

Safe rust bindings for VISA(Virtual Instrument Software Architecture) library

Most documentation comes from NI-VISA Product Documentation


This crate needs to link to an installed visa library, for example, NI-VISA.

You can specify path of visa64.lib file (or visa32.lib on 32-bit systems) by setting environment variable LIB_VISA_PATH.

On Windows, the default installation path will be added if no path is specified.


    use std::ffi::CString;
    use std::io::{BufRead, BufReader, Read, Write};
    use visa_rs::{flags::AccessMode, DefaultRM, TIMEOUT_IMMEDIATE};
    let rm = DefaultRM::new()?; //open default resource manager
    let expr = CString::new("?*KEYSIGH?*INSTR").unwrap().into(); //expr used to match resource name
    let rsc = rm.find_res(&expr)?; // find the first resource matched
    let mut instr = rm.open(&rsc, AccessMode::NO_LOCK, TIMEOUT_IMMEDIATE)?; //open a session to resource
    instr.write_all(b"*IDN?\n").unwrap(); //write message
    let mut buf_reader = BufReader::new(instr);
    let mut buf = String::new();
    buf_reader.read_line(&mut buf).unwrap(); //read response
    eprintln!("{}", buf);


Defines visa attributes, visa status and visa event as Rust enums

Defines Callback trait used in Instrument::install_handler, which returns a Handler to manage lifetime of data passed


Default Resource Manager for VISA

Session to a specified resource

Job ID of a asynchronous operation,

Returned by DefaultRM::find_res_list, handler to iterator over matched resources

Simple wrapper of std::ffi::CString


Type Definitions

Access key used in Instrument::lock

resource ID