Current internal use of APIs marked as deprecated seems to be causing
issues when building on debian unstable.
Simply rearrange the init code to an internal helper function to avoid
code duplication while still keeping the old deprecated APIs working as
they used to, without getting deprecation warnings at buildtime.
Related: OS#5677
Change-Id: Ie8e168740c0421edd96013620256aab0306dc6c5
The output and input paths are totally independent, they share no code
or structures holding state. They can be operated totally independently.
Hence, let's split the code into separate file since when someone looks
at the osmux code one is really looking specifically at Tx or Rx side,
but not at both sides.
Moreover, the "input" and "output" concepts have always been a bit
difficult to understand (would have been better calling them "src" and
"sink" instead), which adds more confusion when trying to find the
relevant part of code.
Change-Id: Ia72995092a36ca50147611e617cb88c4dcf231d5
Pau Espin