Function esp_idf_svc::sys::uart_set_hw_flow_ctrl

source ยท 
pub unsafe extern "C" fn uart_set_hw_flow_ctrl(
    uart_num: u32,
    flow_ctrl: u32,
    rx_thresh: u8,
) -> i32
Expand description

@brief Set hardware flow control.

@param uart_num UART port number, the max port number is (UART_NUM_MAX -1). @param flow_ctrl Hardware flow control mode @param rx_thresh Threshold of Hardware RX flow control (0 ~ UART_HW_FIFO_LEN(uart_num)). Only when UART_HW_FLOWCTRL_RTS is set, will the rx_thresh value be set.

@return - ESP_OK Success - ESP_FAIL Parameter error