By I²C, you mean Immediate Command/Response Interface of HDAudio controller?
Though Immediate Command/Response Interface should work, CORB/RIRB is the recommended way to send/receive commands/responses from the codec. If you do use Immediate mode, please refer to the updated HDAudio spec that clarifies use of ICB bit in ICIS register. http://www.intel.com/standards/hdaudio/pdf/hda002-a.pdf Thanks, Bankim. On Fri, Sep 3, 2010 at 4:08 PM, Tristan Plumb <9p...@imu.li> wrote: > I'm working on a audio driver for kw (openrd) as a warmup for other more > useful drivers (do something easy before something hard), and I've come > to the point where to do anything more requires talking to the audio > codec. According to various linux patches, this is done over I²C. Has > anyone done anything with I²C, is it used for anything else? The kirkwood > functional specification does not mention it (at least so far as I can > see in the copy I have). Elseways I'll scrounge around some more. > > Thoughts? > > tristan > > -- > All original matter is hereby placed immediately under the public domain. > >
