Function esp_idf_sys::uart_is_driver_installed

pub unsafe extern "C" fn uart_is_driver_installed(
    uart_num: uart_port_t,
) -> bool

@brief Checks whether the driver is installed or not

@param uart_num UART port number, the max port number is (UART_NUM_MAX -1).

@return - true driver is installed - false driver is not installed