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[ALSA] ice1724 - Add comments for naming of PCM streams

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Added some comments regarding naming of PCM streams on vt172x chip.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Takashi Iwai 2007-04-10 11:15:34 +02:00 committed by Jaroslav Kysela
parent fdd4bb49ec
commit f06934bd3c
1 changed files with 8 additions and 0 deletions
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8
sound/pci/ice1712/ice1724.c
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@ -2345,6 +2345,14 @@ static int __devinit snd_vt1724_probe(struct pci_dev *pci,
}
c = &no_matched;
__found:
/*
* VT1724 has separate DMAs for the analog and the SPDIF streams while
* ICE1712 has only one for both (mixed up).
*
* Confusingly the analog PCM is named "professional" here because it
* was called so in ice1712 driver, and vt1724 driver is derived from
* ice1712 driver.
*/
if ((err = snd_vt1724_pcm_profi(ice, pcm_dev++)) < 0) {
snd_card_free(card);