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ALSA: ice1724 - limit channels for multi-channel playback
Limit the available channels for multi-channel playback device to the real number of channels. Until now, always up to 8 channels are created, which are simply useless without the real outputs. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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1 changed files with 3 additions and 2 deletions
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@ -942,7 +942,7 @@ static int snd_vt1724_playback_pro_open(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct snd_ice1712 *ice = snd_pcm_substream_chip(substream);
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int chs;
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int chs, num_indeps;
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runtime->private_data = (void *)&vt1724_playback_pro_reg;
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ice->playback_pro_substream = substream;
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@ -952,7 +952,8 @@ static int snd_vt1724_playback_pro_open(struct snd_pcm_substream *substream)
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set_rate_constraints(ice, substream);
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mutex_lock(&ice->open_mutex);
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/* calculate the currently available channels */
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for (chs = 0; chs < 3; chs++) {
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num_indeps = ice->num_total_dacs / 2 - 1;
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for (chs = 0; chs < num_indeps; chs++) {
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if (ice->pcm_reserved[chs])
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break;
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}
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