Hi, On Thu, Jan 10, 2019 at 12:58:35PM +0100, Takashi Iwai wrote: > On Wed, 09 Jan 2019 16:58:48 +0100, > ard wrote: > > > > Since this is a copy paste of the roland octo capture with fixes for the numbers I know, I am still wondering about this: > > Should I use .ifnum=1 for every snd_usb_audio_quirk? > > And in eacht audioformat should I use .iface = 0? > > Just put the value you take for .ifnum to .iface field. They must be > same. Thanks! I figured as much. You know it's now on to the next problem :-). [ 14.576174] usb 3-1.1.3: 0:1 : invalid sync pipe. is_playback 1, ep 86, bSynchAddress 00 The timing is done by implicit feedback. As in: there is no other traffic than 5MB/s of 10 channels iso in and 12 channels iso out for playing a single channel. I assume I have to add a case to: set_sync_ep_implicit_fb_quirk in sound/usb/pcm.c, as I fail to see a construction that automagically connects a 12 channel output to a 10 channel input with the USB_ENDPOINT_USAGE_IMPLICIT_FB flag added to the ep_attr field. I will try just the flag added to the iso in endpoint for now. Regards, Ard van Breemen -- .signature not found _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
