Low-Level I/O Functions

Instrument communication in Nimbus IVI drivers is typically performed using buffered I/O. Buffering I/O data reduces the number of expensive I/O roundtrips to the instrument, and can improve overall application performance in many situations. Most Nimbus I/O functions send their data through the I/O buffer before passing it along to the instrument. By contrast, the functions described in this section do not perform buffered I/O. Instead, they send their data directly to the instrument without first passing it through the I/O buffer.