GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages
visa(7visa) LibreVISA Programmers' Manual visa(7visa)

visa - Virtual Instrument Software Architecture

#include <visa.h>

The Virtual Instrument Software Architecture provides a generic interface for communication with test and measurement equipment.

Each device is identified by a resource name that specifies the type of connection used, location information and the device type.
USB Devices
USB[bus]::manufacturer::product::serial[::type]
The manufacturer and product identifiers must be given as hexadecimal numbers prefixed with 0x. The serial number is mandatory, even if the device would be unique otherwise.
Ethernet/VXI-11 Devices
TCPIP[interface]::host[::type]

Access to resources is mediated through a resource manager; while technically there could be multiple instances, usually only the default resource manager is used.
A handle to the default resource manager can be obtained from the viOpenDefaultRM(3visa) function.

If the resource name is not known in advance, the resource manager can be queried for a list of known devices by using the viFindRsrc(3visa) function.
This function returns a ViFindList object (along with the first known resource), and further resource names are then queried from the find list using viFindNext(3visa) before finally freeing the list using viClose(3visa).
29 January 2013 LibreVISA

Search for    or go to Top of page |  Section other |  Main Index

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with ManDoc.