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| author | Anatol Pomozov <anatol.pomozov@gmail.com> | 2015-08-31 17:24:23 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-08-31 17:40:26 +0200 |
| commit | d76f41982f2fc88492efd96c7c3178044f32e125 (patch) | |
| tree | d8814c92bebb72ccf802b1115e9c35cf98f8b0fe /sound | |
| parent | Linux 4.2-rc2 (diff) | |
| download | linux-d76f41982f2fc88492efd96c7c3178044f32e125.tar.xz linux-d76f41982f2fc88492efd96c7c3178044f32e125.zip | |
ASoC: Document snd-soc-dummy-dai purpose
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/soc-utils.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c index 362c69ac1d6c..53dd085d3ee2 100644 --- a/sound/soc/soc-utils.c +++ b/sound/soc/soc-utils.c @@ -101,6 +101,15 @@ static struct snd_soc_codec_driver dummy_codec; SNDRV_PCM_FMTBIT_S32_LE | \ SNDRV_PCM_FMTBIT_U32_LE | \ SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE) +/* + * The dummy CODEC is only meant to be used in situations where there is no + * actual hardware. + * + * If there is actual hardware even if it does not have a control bus + * the hardware will still have constraints like supported samplerates, etc. + * which should be modelled. And the data flow graph also should be modelled + * using DAPM. + */ static struct snd_soc_dai_driver dummy_dai = { .name = "snd-soc-dummy-dai", .playback = { |