REG_USB_HOST_INDIRECT_DATA_8710B
value = rtl8xxxu_read32(priv, REG_USB_HOST_INDIRECT_DATA_8710B);
rtl8xxxu_write32(priv, REG_USB_HOST_INDIRECT_DATA_8710B, val);
val32 = rtl8xxxu_read32(priv, REG_USB_HOST_INDIRECT_DATA_8710B);