Function esp_idf_svc::hal::sys::uart_wait_tx_done

source ยท 
pub unsafe extern "C" fn uart_wait_tx_done(
    uart_num: u32,
    ticks_to_wait: u32,
) -> i32
Expand description

@brief Wait until UART TX FIFO is empty.

@param uart_num UART port number, the max port number is (UART_NUM_MAX -1). @param ticks_to_wait Timeout, count in RTOS ticks

@return - ESP_OK Success - ESP_FAIL Parameter error - ESP_ERR_TIMEOUT Timeout