On Mon, 2005-12-12 at 12:31 +0100, Takashi Iwai wrote: > At Fri, 9 Dec 2005 20:15:02 +0000, > John Rigg wrote: > > > > On Fri, Dec 09, 2005 at 12:55:27PM -0500, Jeremy Hall wrote: > > > In the new year, John Rigg wrote: > > > > On Fri, Dec 09, 2005 at 12:40:05PM +0100, Takashi Iwai wrote: > > > > > The link_fd returns the file descriptor for linking multiple PCM > > > > > streams. If you comment it out, it means that no link is possible. > > > > > It means that snd_pcm_link() didn't do anything in fact after your > > > > > patch. > > > > > > > > I can't understand why this works after my patch broke snd_pcm_link . > > > > > > It probably works because the rme cards are synced by an external means > > > such as word clock or the entity they are connected to has master sync > > > > Makes sense. So, the situation appears to be: > > 1 - The link code is unnecessary for duplex operation of multiple > > clock-synchronised sound cards with jackd. > > 2 - It breaks the above when present. > > Hm, the question is what the cable-sync really does. Basically the > linked PCM streams in ALSA are just for trigger actions, > i.e. start/stop streams. The others are not really related. > > However, the recent changes of multi pcm tries to use only one pollfd > as a master, and this seems broken in your case. Or, it's really the > matter of linked streams. > > Will come back to this issue later... > Takashi-san, I'm not sure I fully understand - are you saying JACK is broken or that it's an ALSA bug? Lee ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
