> > Yes, but that isn't the issue AFAIU ? In the USB 2.0 standard related > > to synchronization > > (http://sdphca.ucsd.edu/lab_equip_manuals/usb_20.pdf chapter 5.12.4), > > an isochronous OUT ep with asynchronous synchronization is *required* > > (at least by Microsoft) to have a feedback IN ep, to be able to report > > to the host the rate so no under- or overrun condition occurs. > > Indeed, that's also mandated by USB spec. Seems like we need to patch > f_uac2.c. Can you check if setting the IN endpoint as implicit feedback > data is enough? Thanks Felipe, I have all setup so I can try this. Regards /Robert -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html