[alsa-devel] Why no Marco definitions for rate 24000 and 12000?

[cocala]

Yes, that can add supported sample rates.

but the macro definitions are still needed, actually 12000 and 24000 are
supported by most audio codecs.

in soc-core.c

runtime->hw.rates =
   codec_dai->capture->rates & cpu_dai->capture->rates;

in wm8350.c
#define WM8350_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
  SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
        SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_32000 | \
        SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | \
        SNDRV_PCM_RATE_96000)

static const struct snd_soc_pcm_stream wm8350_hifi_dai_playback = {
 .stream_name = "Playback",
 .channels_min = 2,
 .channels_max = 2,
 .rates  = WM8350_RATES,
 .formats = WM8350_FORMATS,
};
Without the mcaro defintions, it is hard to handle the 12000 and 24000
sample rates.


2008/11/14 cocala <syy.wxd at gmail.com>

> Who can tell me why not define add SNDRV_PCM_RATE_24000 and
> SNDRV_PCM_RATE_12000?