usb_error = _usb_host_driver_install(USBCFG_DEFAULT_HOST_CONTROLLER);
usb_error = _usb_host_init(USBCFG_DEFAULT_HOST_CONTROLLER, &host_handle);
The OS I am using is MQX3.6, I am getting an error when compiling the above code, I don't know what to ask? How to modify it?