Purpose of vDev overlay field?

Discussions about Z-Way software and Z-Wave technology in general
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Provo
Posts: 112
Joined: 19 Oct 2016 19:54

Purpose of vDev overlay field?

Post by Provo »

When creating a virtual device, it has both a "defaults" field and an "overlay" field, but I haven't been able to find any documentation regarding this. Overlay seems to accept the same fields as defaults, and often it doesn't seem to matter what goes where, but I'm sure there is a difference. When should overlay be used instead of defaults – and the other way around? In what ways do they differ? If anyone could explain this or point me to some documentation regarding this, that would be great.
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