drci_rd_reg
if (drci_rd_reg(usb_device, DRCI_REG_HW_ADDR_HI, &hi)) {
if (drci_rd_reg(usb_device, DRCI_REG_HW_ADDR_MI, &mi)) {
if (drci_rd_reg(usb_device, DRCI_REG_HW_ADDR_LO, &lo)) {
if (drci_rd_reg(usb_device, DRCI_REG_NI_STATE, &link)) {
err = drci_rd_reg(dci_obj->usb_device, reg_addr, &val);