Am 2014-03-18 21:30, schrieb Lucas Stach: > On Tegra the convention is to have a single machine driver > that's controlling the whole audio subsystem. This was > introduced after the AC97 driver was merged and ever since > AC97 has been broken. > > Move the clock handling to the machine driver, to be in line > with the other Tegra drivers and give the machine driver > full control over the single Tegra audio PLL. On a Colibri T20, the AC97 Codec WM9712 gets detected and I can play audio after unmuting the right output: amixer -c 0 set 'Left HP Mixer PCM' on amixer -c 0 set 'Right HP Mixer PCM' on Tested-by: <stefan@xxxxxxxx> Lucas, did you tried once to capture input? In my test using arecord -f cd, recorded sound is very slow (rate problem?) -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html