Actually I am trying to get a custom build of official openwrt to run on a RUT955, to be used in a soon-to-market commercial product. Most of required functionality works (incl. EC25), however, I discovered certain issues, regarding RS232 (DB9) and RS485.
Although officially supported, I have the impression, the maintainer of official openwrt for the RUT955 is not very 'motivated" to take care of the problems. Might be simple overload, though.
I think, some help from TELTONIKA would be beneficial for everybody, as the decision to use a RUT955, for example, in my case was primarily taken because of built-in RS485 (for modbus-serial), _AND_ supposed-to-run open source software, to be tailored for a certain application.
Comments welcome.