At Wed, 19 May 2010 21:00:38 +0200, Bernhard Walle wrote: > > Hi, > > we have a problem with the word clock input of the Delta 1010 E. At > first: I modified the source code of envy24control to accept the Delta > 1010 E as subdevice so that it allows to set the word clock. I'll post > the patch after it works with the driver. However, the problem also > exists when I use plain alsamixer or amixer. > > With the unmodified driver, I'm able to turn word clock on but whenever > I record something, the arecord program (or Audacity) doesn't get any > samples. > > With OSS (which we're using now but we're trying to switch to ALSA) my > colleague Markus Prosch made a patch with lots of try & error that made > the word clock working: > > http://opensound.hg.sourceforge.net/hgweb/opensound/opensound/rev/6a4bad6e7422 > > When I try to "port" that patch to ALSA, the behaviour changes: The > recording works, but the sample rate is too low so that it sounds quite > strange. > > In any case: In the same hardware setup, it works flawlessly with OSS. > Also, we had no problem with the older Delta 1010. It seems to be an > incompatible change (or bug ;)) in revision E. > > Are there any devs here that know the hardware better and could help me > in debugging that issue? Without any deeper sound driver knowledge and > without any data sheet, that's quite hard for me. Is register 0x01 set with bit 0x10 (aka SPDIF input-clock-master)? I haven't touched this driver for a very long time, so I'm not sure whether envy24control changed this bit automatically with word sync setup... Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
