get_root_device_id()

Get root device registered within the hub by specified id.

Call
Example

Edit

core.get_root_device_id()

params: child device id (string).
return: device_id (string) or nil in a case of an error.

Edit

				
					require "core"

local root_device_id = core.get_root_device_id( "child_device_id" )
if root_device_id then
    print( "root device id:" .. root_device_id )
end