Hi ALSA ML I want to ask about tx_mask / rx_mask. soc_pcm_open() is calling snd_soc_dai_startup() (= (A)), and then, it setup tx_mask / rx_mask. static int soc_pcm_open(...) { ... for_each_rtd_codec_dai(rtd, i, codec_dai) { (A) ret = snd_soc_dai_startup(codec_dai, substream); if (ret < 0) { dev_err(...) if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) => codec_dai->tx_mask = 0; else => codec_dai->rx_mask = 0; } ... } snd_soc_dai_link_event_pre_pmu() also calling snd_soc_dai_startup(), but, it doesn't care about tx/rx_mask. Is this bug ? snd_soc_dai_link_event_pre_pmu(...) { ... substream->stream = SNDRV_PCM_STREAM_CAPTURE; snd_soc_dapm_widget_for_each_source_path(w, path) { source = path->source->priv; (A) ret = snd_soc_dai_startup(source, substream); if (ret < 0) { dev_err(source->dev, "ASoC: startup() failed: %d\n", ret); goto out; } source->active++; } substream->stream = SNDRV_PCM_STREAM_PLAYBACK; snd_soc_dapm_widget_for_each_sink_path(w, path) { sink = path->sink->priv; (A) ret = snd_soc_dai_startup(sink, substream); if (ret < 0) { dev_err(sink->dev, "ASoC: startup() failed: %d\n", ret); goto out; } sink->active++; } ... } Thank you for your help !! Best regards --- Kuninori Morimoto _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel