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[ALSA] cmipci: add msbits constraint for 24-bit format

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Add a msbits constraint to the SPDIF output device to indicate that
S32_LE samples use only 24 bits for data.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Clemens Ladisch 2007-09-07 10:44:13 +02:00 committed by Jaroslav Kysela
parent 8e7f00f924
commit 57bd68b8b1
1 changed files with 3 additions and 1 deletions
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4
sound/pci/cmipci.c
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@ -1599,8 +1599,10 @@ static int snd_cmipci_playback_spdif_open(struct snd_pcm_substream *substream)
return err;
if (cm->can_ac3_hw) {
runtime->hw = snd_cmipci_playback_spdif;
if (cm->chip_version >= 37)
if (cm->chip_version >= 37) {
runtime->hw.formats |= SNDRV_PCM_FMTBIT_S32_LE;
snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
}
if (cm->chip_version == 68) {
runtime->hw.rates |= SNDRV_PCM_RATE_88200 |
SNDRV_PCM_RATE_96000;