[alsa-devel] Configure and use dmix with a new ASoC driver

[Mark Brown]

On Sat, Aug 16, 2008 at 06:27:02AM +0000, Simon Tremblay wrote:

> # aplay -v -D plug:dmix /media/usb0/tada.wav
> aplay: main:545: audio open error: Operation not permitted

This doesn't ring any specific bells for me but since you are cross
building and can play without dmix I would be looking at installation
issues with your ALSA user space or a missing device file it needs.
stracing aplay may well provide a useful clue as to what's missing.