Function esp_idf_sys::uart_set_word_length

pub unsafe extern "C" fn uart_set_word_length(
    uart_num: uart_port_t, 
    data_bit: uart_word_length_t
) -> esp_err_t

@brief Set UART data bits.

@param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2 @param data_bit UART data bits

@return - ESP_OK Success - ESP_FAIL Parameter error