update:resol vbus serial to windows
so, turns out that socat on openwrt doesn't compile with serial support, and enabling it causes breakage :-( instead I am now using ser2net for the same function, on windows still using com0com and com2tcp, the resol windows software now talks to the controller via tcp and openwrt running on a box in the hot press com2tcp --baud 9600 \\.\COM44 192.168.205.222 2500