NAME

       visa - Virtual Instrument Software Architecture

SYNOPSIS

       #include <visa.h>

DESCRIPTION

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

   Resource Names
       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]

   Resource Manager
       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.

   Finding Devices
       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).