Hi
I tried d to use Hoogle to find openFd's signature and more importantly FileMode.
Hoogle does not search the Posix library, because in general people should steer clear of it - otherwise I won't be able to run your programs :-) - The next version of Hoogle will permit selecting to search the Posix library, if you so choose.
I found FileMode which is a type synonym with CMode. I don't understand what are the "values" for FileMode (so I can call openFd). ??
Clearly, the documentation is rather weak. It comes from the Posix "open" function, which is document all over the place, and you can see the code here: http://darcs.haskell.org/ghc-6.6/packages/unix/System/Posix/IO.hsc After figuring out what you want, I recommend submitting a patch for documentation. Additionally, if what you want can be done in a cross platform way, but lacks the appropriate abstraction layer, I would add a request for this to be fixed. Thanks Neil