Logical Device support

[stephen]

Would like to add a "logical device" abstraction on top of the existing devices, and a search() function that groups these logical devices.

Logical device would essentially be any playable interface that Sonos supports via the controller - e.g. a Stereo Pair shows up as a single logical device; Grouped rooms show up as a logical device, etc.

[bencevans]

👍

[mrose17]

@mrose17 - interested in this (now getting an email when the issue updates!)

[stephen]

Commands that need per-device logic:

• getLEDState
• setLEDState
• setVolume
• getVolume

Hm, so I'm wondering how we should handle volume controls for a logical device. From some packet sniffing, it appears that the Sonos controller itself does the calculations to find relative-volumes per each device that's grouped, then individually sends out the UPnP commands to each device.

Would require a) collecting the base volumes when a LogicalDevice is initialized, and b) some maths to figure out what the individual volumes should actually be.