Nox Deleo wrote: > I've got a USB2 sound card which should be capable of full duplex in the > configuration I've been using. > > I did some digging, and it seems to be related to hw parameters being set > when the pcm's are opened. I get a kernel message: "Unable to change format > on ep #81: already in use" whenever I try to open capture and playback > pcm's at the same time. This is a known bug in the driver; it works for this device in full duplex only when both streams are opened before they are started. So nothing but Jack will work. Regards, Clemens ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user