Hello, 1) I have added more to "the posix realtime" support. - I put in parens above because I have currently uploaded outside the Haskell Unix library .. i.e. I am still open to submitting to the Unix library. - I have also put in parens because I have not personally implemented all of the posix realtime support .... others have also implemented Posix realtime support. 2) I am still trying to learn the Haskell FFI .. my bad .. thank you Brandon, Derek, Don(2?), Jason, Bulat, Duncan, Felipe, Bryan, Ketli, Luke, Jonthan, Jeremy, Jules. . .. Sorry for list .. alittle corney .. but nonetheless very grateful! Who did I forget who answered my questions? Is this a pre-order? ;^) 3) There are still issues with RTDataTypes.hsc that I am working with .. in particular Sigevent. 4) This has been a learning exercise for me as I said in terms of the Haskell API and Haskell monad class. Someone one in the 2) list suggested aHaskell Posix AIO (async IO) API implemented in terms of the State monad or Continuation monad ... I didn't ignore this suggestion ... I am still thinking about .. i.e. the AIO "API" is a somewhat moving target. Kind regards, Vasili