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I'm trying to run ALSA working on my embedded Linux ARM board. I'm compiling the whole system using buildroot-2017 and after proper compilation I am able to run alsamixer and set its settings. However I cannot play anything - for example "aplay sound.wav" gives input/output error.

On older buildroot-2015.05 the alsa drivers worked fine - I could play audio stream via aplay. In new buildroot - I got I/O error.

The audio controller is TLV320AIC3204 and the embedded device has a speaker.

Anyone knows how the ALSA works - and how to debug od fix such a problem? Any suggestions?

  • Does the embedded board have speaker(s) —  or other audio output device? – Scott Oct 6 '17 at 5:13
  • Yes it has speaker. I forgot to write that on older buildroot-2015.05 it was working fine. I could run aplay and it played a audio stream. – user2699113 Oct 6 '17 at 5:14
  • Every embedded board is different. If the manufacturer does not support it, there is no sensible way to get it to work. – CL. Oct 6 '17 at 6:55

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