[alsa-devel] ALSA patch Nvidia 8 channel hdmi audio

Pau Rodriguez-Estivill prodrigestivill at gmail.com
Wed Jul 1 06:47:30 CEST 2009

I attach a patch to support 24bits and 32kHz, 44.1kHz, 48kHz, 96kHz,
192kHz, all rates that appears in the screenshot submitted by Alan

I created also an asound.conf to correct the speakers positions.
Since current driver only support 2, 4, 6 and 8 channels I specified
it in the asound.conf but I'm not sure if this slave.channels should
be fixed.
The main problem is that by using asound.conf I didn't found any way
to route to surround51 (or surround50 or surround40, ...) depending of
the number of channels offered by the sink player.
And when I play directly to hdmi, the AMP reports automatically the
correct number of speakers involved.

Of course it would be nice to have this routes hardcoded in the driver...
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