Bug 187 - Standardize RMS flag
Summary: Standardize RMS flag
Alias: None
Product: libsigrok
Classification: Unclassified
Component: Other (show other bugs)
Version: unreleased development snapshot
Hardware: All All
: Normal normal
Target Milestone: ---
Assignee: Nobody
Depends on:
Reported: 2013-11-06 23:50 CET by Bert Vermeulen
Modified: 2013-11-06 23:50 CET (History)
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Description Bert Vermeulen 2013-11-06 23:50:14 CET
As RMS and True RMS are ambiguous terms -- vendors using them to mean different things -- it is best to stay away from the term "True RMS" altogether, and communicate the device's capabilities in a more precise manner.

Therefore, all DMM drivers must be adapted to use mqflags as follows, according to the device specification:

1. Set only AC if the device assumes sinusoid AC voltages.
2. Set AC and RMS if the device can handle non-sinusoid AC voltages correctly
3. Set AC, DC and RMS if the device can handle non-sinusoid mixed-mode voltages correctly

This was already done for the Gossen Metrawatt driver by Matthias Heidbrink.