speakers: make header file
speakers: add speakers_stream
speakers: add speakers_pcm
speakers: add speakers_control
speakers: add name_card()
speakers: change the way to make pcm rules/constraints
speakers: add proc
speakers: change the way to start stream
speakers: add command
speakers: add devices
speakers: support PCM capture
speakers: add midi support
speakers: add hwdep
oxfw: remove oxfw stuffs because merged into firewire-speakers