Bug 187

Summary: Standardize RMS flag
Product: libsigrok Reporter: Bert Vermeulen <bert>
Component: OtherAssignee: Nobody <nobody>
Status: CONFIRMED ---    
Severity: normal    
Priority: Normal    
Version: unreleased development snapshot   
Target Milestone: ---   
Hardware: All   
OS: All   

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.