Discover

VISA instrument discovery: scan resources, query identity, match to registered drivers.

scan_visa_resources	Scan VISA resources, query each for identity, and return matched instruments.
match_idn	Match an *IDN? reply against every registered driver's IdnPattern.
parse_idn	Split an *IDN? reply into its fields, tolerating missing trailing fields.
DriverMatch	The registered driver an *IDN? reply maps to.
IdnFields	The four comma-separated fields of an IEEE 488.2 *IDN? reply; missing fields are "".
VisaScanResult
DiscoveredInstrument	An instrument that discovery identified and matched to a registered driver.
VisaUnrecognizedInstrument
VisaScanError