On Wed, Apr 29, 2009 at 9:04 AM, Takashi Iwai <tiwai@xxxxxxx> wrote: > At Wed, 29 Apr 2009 08:58:52 -0400, > Jon Smirl wrote: >> >> My hardware was has three stereo i2s lines. These three lines are all >> tied to the same external clock so they are synchronized. Because >> there are three i2s lines, each with it's own DMA queue and FIFO, I >> need three independent output buffers. What is the correct way to set >> this up in ALSA? > > So I suppose it's three streams of 2-ch interleaved format? Yes > If so, an easier way would be to provide three substreams in a PCM, > and bind 6 channels with alsa-lib plugin. How does ALSA start the streams synchronously? > > Another possible way would be to set up channel_info to point a proper > offset for each channel. But, this is less common and maybe more > problematic. > > > Takashi > -- Jon Smirl jonsmirl@xxxxxxxxx _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
