ABOUT This is OpenAudio, the OpenDarwin interface to IOAudioFamily. Currently, it consists of a kernel extension enabling you to play sound through your speakers. It was written by Dan Christiansen, see the file LICENSE for details. This driver is meant to be as simple as possible. Rather than providing full support for all features supported by IOAudioFamily, it reveals the smallest useful subset of features. REQUIREMENTS OpenDarwin 6.6.1 (or later), does not work on Mac OS X. Untested on Apple Darwin and GNU/Darwin. Untested on i386. USAGE To compile OpenAudio and install a non-debug version: make release To load the kernel extension without rebooting: sudo make -C kext reload You should now have a /dev/dsp entry for every supported audio device in your computer. It most likely supports 44.1kHz native endian audio. I recommend dd or cat for playing, a small sample script is in 'util/play'. SUPPORTED APPLICATIONS EsounD was attempted ported, but it sucked too much. MPlayer has been ported to OpenDarwin, and patches are available in the 'other' subdirectory: Apply the patch and create a link ao_darwin.c in MPlayer's libao2 subdirectory. LIMITATIONS - no more than 256 sound cards at once - only supports exclusive access to each device - does not work on Mac OS X - no recording support DISCLAIMER This is open source software; no guarantee or support is made what so ever. This driver *may* cause your computer to self-destruct, although I find that somewhat unlikely.