Is there any benefit to rewrite OSS-based code to ALSA-based code?
 

I've got some source code that loads and plays WAV files through the OSS drivers (and USB audio). The code works even under 2.6.34. Is there any benefit to rewriting the code using the ALSA system?

Alsa have an OSS compatibility mode, but it is deprecated and may be disabled by some distribution. My suggestion would be to support both pulseaudio and OSS, so PulseAudio hater will love the OSS capability and PulseAudio users will use it and control the stream from some nice gui. It currently work with some OSS app, but I am not sure to what point. Pulse is less buggy than it was 2 years ago. Sill, I don't use it, but it is the new standard for audio.