On Fri, 2010-10-15 at 16:24 +0200, Julian Scheel wrote: > > Don't see any syncpipe related errors. Only thing I see is: > usb 1-1.3: new full speed USB device using ehci_hcd and address 11 > 11:1:1: endpoint lacks sample rate attribute bit, cannot set. > 11:1:1: endpoint lacks sample rate attribute bit, cannot set. > > Does not seem to be feedback related... Although it would be nice to know, > what's wrong there? You probably need to fix that sample rate attribute bit for rate feedback to work. It is in the bmAttribute of the //Audio endpoint specific descriptor #define AUDIO_EP_ATRIBUTES UAC_EP_CS_ATTR_SAMPLE_RATE // sampling freq, no pitch, no pading #define AUDIO_EP_DELAY_UNIT 0x00 // Unused #define AUDIO_EP_LOCK_DELAY 0x0000 // Unused Alex _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel