This is how I implemented via_dsp_open as well.
Is this why USB's audio device handling of SNDCTL_DSP_SETDUPLEX is null?
case SNDCTL_DSP_SETDUPLEX:
return 0;
> This is sometimes useful, Sun does it also that way (but it only
> works if you can set the sampling rate independently for both
> directions).
Or you have cheap hardware with a fixed sample rate which is the same
for both channels. :) AC97 1.0-compliancy requires at least that.
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