EHCI_QTD_CTRL_BYTES_TO_XFER_SHIFT
EHCI_QTD_CTRL_BYTES_TO_XFER_SHIFT;
EHCI_QTD_CTRL_BYTES_TO_XFER) >> EHCI_QTD_CTRL_BYTES_TO_XFER_SHIFT);
ctrl |= (((qtd_length << EHCI_QTD_CTRL_BYTES_TO_XFER_SHIFT)
ctrl |= (((qtd_length << EHCI_QTD_CTRL_BYTES_TO_XFER_SHIFT)