Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f06934bd3cf773c297683d1345bf61c7807d7e75
Commit:     f06934bd3cf773c297683d1345bf61c7807d7e75
Parent:     fdd4bb49ec3f401379875990fcece611c623e32f
Author:     Takashi Iwai <[EMAIL PROTECTED]>
AuthorDate: Tue Apr 10 11:15:34 2007 +0200
Committer:  Jaroslav Kysela <[EMAIL PROTECTED]>
CommitDate: Fri May 11 16:55:57 2007 +0200

    [ALSA] ice1724 - Add comments for naming of PCM streams
    
    Added some comments regarding naming of PCM streams on vt172x chip.
    
    Signed-off-by: Takashi Iwai <[EMAIL PROTECTED]>
    Signed-off-by: Jaroslav Kysela <[EMAIL PROTECTED]>
---
 sound/pci/ice1712/ice1724.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/sound/pci/ice1712/ice1724.c b/sound/pci/ice1712/ice1724.c
index 0666cbc..6a29bcf 100644
--- a/sound/pci/ice1712/ice1724.c
+++ b/sound/pci/ice1712/ice1724.c
@@ -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);
-
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