Re: Can't link multiple streams

[Takashi Iwai <tiwai@suse.de>]

At Mon, 10 Nov 2003 17:09:40 +0100,
Robert Brückmann wrote:
> 
> I have 3 capture and 3 playback devices (all sample-synced via 
> wordclock) which I want to sync via snd_pcm_link(). So I do the 
> following calls:
> 
> snd_pcm_link(playback1,playback2);
> snd_pcm_link(playback2,playback3);
> snd_pcm_link(capture1,capture2);
> snd_pcm_link(capture2,capture3);
> snd_pcm_link(playback1,capture1);
> 
> This worked in an older version of ALSA without problems (I used 
> 0.9.0beta12), but since I upgraded to 0.9.7a, I can't link, the last 
> link operation gives an error:
> 
> ALSA lib pcm.c:1148:(snd_pcm_link) SNDRV_PCM_IOCTL_LINK failed: 
> Operation already in progress

which link in the above do you have this error?


Takashi


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