urb->instance.pipe = in ? usb_rcvisocpipe(chip->dev, ep)
: usb_sndisocpipe(chip->dev, ep);
urb->instance.interval = 1;
- urb->instance.transfer_flags = URB_ISO_ASAP;
urb->instance.complete = handler;
urb->instance.context = urb;
urb->instance.number_of_packets = PCM_N_PACKETS_PER_URB;