diff mbox

ASoC: Document snd-soc-dummy-dai purpose

Message ID 1441034663-4372-1-git-send-email-anatol.pomozov@gmail.com (mailing list archive)
State Accepted
Commit d76f41982f2fc88492efd96c7c3178044f32e125
Headers show

Commit Message

Anatol Pomozov Aug. 31, 2015, 3:24 p.m. UTC 
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
---
 sound/soc/soc-utils.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff mbox

Patch

diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c
index 362c69a..53dd085 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 = {