National Instruments ENET-232 Series User Manual page 91

Appendix F VISA and Serial APIs on UNIX
Summary
ENET-232 and ENET-485 Series User Manual
VISA is the only mechanism available in UNIX systems such as Solaris and
Linux to access the ENET-Serial serial ports. Due to the similarity between
UNIX system calls for serial access and VISA operations, the transition to
the VISA architecture should be relatively painless. And with VISA,
switching your code for use with another supported device, even on
different buses using different operating systems, is usually as easy as
changing the resource string on the call to
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