You can try to use my patch for runeaudio
Patch contains a modified kernel with modules and other supporting files, including the necessary changes in runeaudio
It also includes support for hw and safe shutdown power-on-off module, described in attachment.
Download from:
http://www.element14.com/community/mess ... oad#109102
New 3.12RT21 kernel and patch (inform and download link): post990.html#p990
Scheme, PCB layout and photo power-on-off module: