> + if (!fe_substream) {
> + dev_err(fe->dev, "%s: fe_substream not initialized\n",
> __func__);
> + return -EINVAL;
> + }
> + if (!be_substream) {
> + dev_err(be->dev, "%s: be_substream not initialized\n",
> __func__);
> + return -EINVAL;
> + }
> +
Good) USB-audio is working)
May be and A311D internal sound card probably to repear too?))
Big Thanks!
