On 31 May 2015 at 17:06, Martin Pieuchot <[email protected]> wrote: > On 30/05/15(Sat) 21:49, Bojan Nastic wrote: > > Hi misc@ > > > > I'm seeing inconsistent USB behaviour between USB2 and USB3 on different > > Thinkpads running -current with Cambridge Audio DACMagic > > XS USB audio card (class 2 audio device). > > This card otherwise works perfectly fine over USB3 on a Mac laptop. > > uaudio(4) devices use isochronous transfers which our xhci(4) does not > currently support since nobody wrote the code ;) >
Ah, that explains it, thanks! I remember there was a discussion recently on the isochronous transfer and usb audio (tech@ maybe?), I'll need to go back and re-read it.
