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21 lines (19 sloc) 617 Bytes
require 'EIBConnection'
require 'knx_tools'
Conn = EIBConnection.new()
Conn.EIBSocketURL('local:/tmp/eib')
Buf = EIBBuffer.new()
Src = EIBAddr.new()
Dest = str2addr('1/1/1')
result = Conn.EIB_Cache_Read_Sync(Dest,Src, Buf, 0)
if (result == -1)
puts "not found in cache, requesting value on bus..."
if (Conn.EIBOpenT_Group(Dest, 1) == -1) then
raise("KNX client: error setting socket mode")
end
Conn.EIBSendAPDU([0,0].pack('c*'))
# the receiver thread will receive the response
else
puts "found in cache, last sender was #{addr2str(Src.data)}"
puts " value is #{Buf.buffer}"
end