pipe = usb_sndisocpipe(data->udev,
                                        data->isoc_tx_ep->bEndpointAddress);
 
-               urb->dev      = data->udev;
-               urb->pipe     = pipe;
-               urb->context  = skb;
-               urb->complete = btusb_isoc_tx_complete;
-               urb->interval = data->isoc_tx_ep->bInterval;
+               usb_fill_int_urb(urb, data->udev, pipe,
+                               skb->data, skb->len, btusb_isoc_tx_complete,
+                               skb, data->isoc_tx_ep->bInterval);
 
                urb->transfer_flags  = URB_ISO_ASAP;
-               urb->transfer_buffer = skb->data;
-               urb->transfer_buffer_length = skb->len;
 
                __fill_isoc_descriptor(urb, skb->len,
                                le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));