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driver: fix header file warnings for Doxygen.

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This commit is contained in:
Wangjialin 2016-11-16 01:31:02 +08:00
parent a8a51a2786
commit d7599ab16d
3 changed files with 122 additions and 115 deletions
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2
components/driver/include/driver/gpio.h
View file

@ -314,7 +314,7 @@ esp_err_t gpio_set_pull_mode(gpio_num_t gpio_num, gpio_pull_mode_t pull);
*
* @param gpio_num GPIO number.
*
* @param intr_type GPIO wake-up type. Only GPIO_INTR_LOW_LEVEL\GPIO_INTR_HIGH_LEVEL can be used.
* @param intr_type GPIO wake-up type. Only GPIO_INTR_LOW_LEVEL or GPIO_INTR_HIGH_LEVEL can be used.
*
* @return
* - ESP_OK Success

2
components/driver/include/driver/ledc.h
View file

@ -150,6 +150,8 @@ esp_err_t ledc_update_duty(ledc_mode_t speed_mode, ledc_channel_t channel);
*
* @param channel LEDC channel(0-7), select from ledc_channel_t
*
* @param idle_level Set output idle level after LEDC stops.
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Parameter error

233
components/driver/include/driver/uart.h
View file

@ -113,11 +113,11 @@ typedef struct {
} uart_event_t;
/**
* @brief Set UART data bits.
* @brief Set UART data bits.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param data_bit UART data bits
* @param data_bit UART data bits
*
* @return
* - ESP_OK Success
@ -126,9 +126,11 @@ typedef struct {
esp_err_t uart_set_word_length(uart_port_t uart_num, uart_word_length_t data_bit);
/**
* @brief Get UART data bits.
* @brief Get UART data bits.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param data_bit Pointer to accept value of UART data bits.
*
* @return
* - ESP_FAIL Parameter error
@ -137,22 +139,24 @@ esp_err_t uart_set_word_length(uart_port_t uart_num, uart_word_length_t data_bit
esp_err_t uart_get_word_length(uart_port_t uart_num, uart_word_length_t* data_bit);
/**
* @brief Set UART stop bits.
* @brief Set UART stop bits.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param bit_num UART stop bits
* @param bit_num UART stop bits
*
* @return
* - ESP_OK Success
* - ESP_FAIL Fail
*/
esp_err_t uart_set_stop_bits(uart_port_t uart_no, uart_stop_bits_t bit_num);
esp_err_t uart_set_stop_bits(uart_port_t uart_num, uart_stop_bits_t bit_num);
/**
* @brief Set UART stop bits.
* @brief Set UART stop bits.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param stop_bit Pointer to accept value of UART stop bits.
*
* @return
* - ESP_FAIL Parameter error
@ -161,22 +165,24 @@ esp_err_t uart_set_stop_bits(uart_port_t uart_no, uart_stop_bits_t bit_num);
esp_err_t uart_get_stop_bits(uart_port_t uart_num, uart_stop_bits_t* stop_bit);
/**
* @brief Set UART parity.
* @brief Set UART parity.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param parity_mode the enum of uart parity configuration
* @param parity_mode the enum of uart parity configuration
*
* @return
* - ESP_FAIL Parameter error
* - ESP_OK Success
*/
esp_err_t uart_set_parity(uart_port_t uart_no, uart_parity_t parity_mode);
esp_err_t uart_set_parity(uart_port_t uart_num, uart_parity_t parity_mode);
/**
* @brief Get UART parity mode.
* @brief Get UART parity mode.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param parity_mode Pointer to accept value of UART parity mode.
*
* @return
* - ESP_FAIL Parameter error
@ -186,22 +192,24 @@ esp_err_t uart_set_parity(uart_port_t uart_no, uart_parity_t parity_mode);
esp_err_t uart_get_parity(uart_port_t uart_num, uart_parity_t* parity_mode);
/**
* @brief Set UART baud rate.
* @brief Set UART baud rate.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param baud_rate UART baud-rate.
* @param baud_rate UART baud-rate.
*
* @return
* - ESP_FAIL Parameter error
* - ESP_OK Success
*/
esp_err_t uart_set_baudrate(uart_port_t uart_no, uint32_t baud_rate);
esp_err_t uart_set_baudrate(uart_port_t uart_num, uint32_t baud_rate);
/**
* @brief Get UART bit-rate.
* @brief Get UART bit-rate.
*
* @param uart_no: UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param baudrate Pointer to accept value of UART baud rate
*
* @return
* - ESP_FAIL Parameter error
@ -211,11 +219,11 @@ esp_err_t uart_set_baudrate(uart_port_t uart_no, uint32_t baud_rate);
esp_err_t uart_get_baudrate(uart_port_t uart_num, uint32_t* baudrate);
/**
* @brief Set UART line inverse mode
* @brief Set UART line inverse mode
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param inverse_mask Choose the wires that need to be inversed.
* @param Inverse_mask Choose the wires that need to be inversed.
*
* (inverse_mask should be chosen from UART_INVERSE_RXD/UART_INVERSE_TXD/UART_INVERSE_RTS/UART_INVERSE_CTS, combine with OR-OPERATION)
*
@ -223,16 +231,16 @@ esp_err_t uart_get_baudrate(uart_port_t uart_num, uint32_t* baudrate);
* - ESP_OK Success
* - ESP_FAIL Parameter error
*/
esp_err_t uart_set_line_inverse(uart_port_t uart_no, uint32_t inverse_mask);
esp_err_t uart_set_line_inverse(uart_port_t uart_num, uint32_t inverse_mask);
/**
* @brief Set hardware flow control.
* @brief Set hardware flow control.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param flow_ctrl Hardware flow control mode
* @param flow_ctrl Hardware flow control mode
*
* @param rx_thresh Threshold of Hardware RX flow control(0 ~ UART_FIFO_LEN)
* @param rx_thresh Threshold of Hardware RX flow control(0 ~ UART_FIFO_LEN)
*
* Only when UART_HW_FLOWCTRL_RTS is set , will the rx_thresh value be set.
*
@ -240,12 +248,14 @@ esp_err_t uart_set_line_inverse(uart_port_t uart_no, uint32_t inverse_mask);
* - ESP_OK Success
* - ESP_FAIL Parameter error
*/
esp_err_t uart_set_hw_flow_ctrl(uart_port_t uart_no, uart_hw_flowcontrol_t flow_ctrl, uint8_t rx_thresh);
esp_err_t uart_set_hw_flow_ctrl(uart_port_t uart_num, uart_hw_flowcontrol_t flow_ctrl, uint8_t rx_thresh);
/**
* @brief Get hardware flow control mode
* @brief Get hardware flow control mode
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param flow_ctrl Option for different flow control mode.
*
* @return
* - ESP_FAIL Parameter error
@ -254,11 +264,11 @@ esp_err_t uart_set_hw_flow_ctrl(uart_port_t uart_no, uart_hw_flowcontrol_t flow_
esp_err_t uart_get_hw_flow_ctrl(uart_port_t uart_num, uart_hw_flowcontrol_t* flow_ctrl);
/**
* @brief Clear UART interrupt status
* @brief Clear UART interrupt status
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param clr_mask Bit mask of the status that to be cleared.
* @param clr_mask Bit mask of the status that to be cleared.
*
* (enable_mask should be chosen from the fields of register UART_INT_CLR_REG)
*
@ -269,11 +279,11 @@ esp_err_t uart_get_hw_flow_ctrl(uart_port_t uart_num, uart_hw_flowcontrol_t* flo
esp_err_t uart_clear_intr_status(uart_port_t uart_num, uint32_t clr_mask);
/**
* @brief Set UART interrupt enable
* @brief Set UART interrupt enable
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param enable_mask Bit mask of the enable bits.
* @param enable_mask Bit mask of the enable bits.
*
* (enable_mask should be chosen from the fields of register UART_INT_ENA_REG)
*
@ -284,11 +294,11 @@ esp_err_t uart_clear_intr_status(uart_port_t uart_num, uint32_t clr_mask);
esp_err_t uart_enable_intr_mask(uart_port_t uart_num, uint32_t enable_mask);
/**
* @brief Clear UART interrupt enable bits
* @brief Clear UART interrupt enable bits
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param disable_mask Bit mask of the disable bits.
* @param disable_mask Bit mask of the disable bits.
*
* (disable_mask should be chosen from the fields of register UART_INT_ENA_REG)
*
@ -300,9 +310,9 @@ esp_err_t uart_disable_intr_mask(uart_port_t uart_num, uint32_t disable_mask);
/**
* @brief Enable UART RX interrupt(RX_FULL & RX_TIMEOUT INTERRUPT)
* @brief Enable UART RX interrupt(RX_FULL & RX_TIMEOUT INTERRUPT)
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @return
* - ESP_OK Success
@ -311,9 +321,9 @@ esp_err_t uart_disable_intr_mask(uart_port_t uart_num, uint32_t disable_mask);
esp_err_t uart_enable_rx_intr(uart_port_t uart_num);
/**
* @brief Disable UART RX interrupt(RX_FULL & RX_TIMEOUT INTERRUPT)
* @brief Disable UART RX interrupt(RX_FULL & RX_TIMEOUT INTERRUPT)
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @return
* - ESP_OK Success
@ -322,9 +332,9 @@ esp_err_t uart_enable_rx_intr(uart_port_t uart_num);
esp_err_t uart_disable_rx_intr(uart_port_t uart_num);
/**
* @brief Disable UART TX interrupt(RX_FULL & RX_TIMEOUT INTERRUPT)
* @brief Disable UART TX interrupt(RX_FULL & RX_TIMEOUT INTERRUPT)
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @return
* - ESP_OK Success
@ -333,13 +343,13 @@ esp_err_t uart_disable_rx_intr(uart_port_t uart_num);
esp_err_t uart_disable_tx_intr(uart_port_t uart_num);
/**
* @brief Enable UART TX interrupt(RX_FULL & RX_TIMEOUT INTERRUPT)
* @brief Enable UART TX interrupt(RX_FULL & RX_TIMEOUT INTERRUPT)
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param enable 1: enable; 0: disable
* @param enable 1: enable; 0: disable
*
* @param thresh Threshold of TX interrupt, 0 ~ UART_FIFO_LEN
* @param thresh Threshold of TX interrupt, 0 ~ UART_FIFO_LEN
*
* @return
* - ESP_OK Success
@ -348,21 +358,20 @@ esp_err_t uart_disable_tx_intr(uart_port_t uart_num);
esp_err_t uart_enable_tx_intr(uart_port_t uart_num, int enable, int thresh);
/**
* @brief register UART interrupt handler(ISR).
* @brief register UART interrupt handler(ISR).
* @note
* UART ISR handler will be attached to the same CPU core that this function is running on.
* Users should know that which CPU is running and then pick a INUM that is not used by system.
* We can find the information of INUM and interrupt level in soc.h.
*
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_intr_num UART interrupt number,check the info in soc.h, and please refer to core-isa.h for more details
*
* @param uart_intr_num UART interrupt number,check the info in soc.h, and please refer to core-isa.h for more details
*
* @param fn Interrupt handler function.
* @param fn Interrupt handler function.
* @attention
* The ISR handler function MUST be defined with attribution of "IRAM_ATTR" for now.
* @param arg parameter for handler function
* @param arg parameter for handler function
*
* @return
* - ESP_OK Success
@ -371,21 +380,21 @@ esp_err_t uart_enable_tx_intr(uart_port_t uart_num, int enable, int thresh);
esp_err_t uart_isr_register(uart_port_t uart_num, uint8_t uart_intr_num, void (*fn)(void*), void * arg);
/**
* @brief Set UART pin number
* @brief Set UART pin number
*
* @note
* Internal signal can be output to multiple GPIO pads
* Only one GPIO pad can connect with input signal
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param tx_io_num UART TX pin GPIO number, if set to UART_PIN_NO_CHANGE, use the current pin.
* @param tx_io_num UART TX pin GPIO number, if set to UART_PIN_NO_CHANGE, use the current pin.
*
* @param rx_io_num UART RX pin GPIO number, if set to UART_PIN_NO_CHANGE, use the current pin.
* @param rx_io_num UART RX pin GPIO number, if set to UART_PIN_NO_CHANGE, use the current pin.
*
* @param rts_io_num UART RTS pin GPIO number, if set to UART_PIN_NO_CHANGE, use the current pin.
* @param rts_io_num UART RTS pin GPIO number, if set to UART_PIN_NO_CHANGE, use the current pin.
*
* @param cts_io_num UART CTS pin GPIO number, if set to UART_PIN_NO_CHANGE, use the current pin.
* @param cts_io_num UART CTS pin GPIO number, if set to UART_PIN_NO_CHANGE, use the current pin.
*
* @return
* - ESP_OK Success
@ -394,12 +403,12 @@ esp_err_t uart_isr_register(uart_port_t uart_num, uint8_t uart_intr_num, void (*
esp_err_t uart_set_pin(uart_port_t uart_num, int tx_io_num, int rx_io_num, int rts_io_num, int cts_io_num);
/**
* @brief UART set RTS level (before inverse)
* @brief UART set RTS level (before inverse)
* UART rx hardware flow control should not be set.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param level 1: RTS output low(active); 0: RTS output high(block)
* @param level 1: RTS output low(active); 0: RTS output high(block)
*
* @return
* - ESP_OK Success
@ -408,11 +417,11 @@ esp_err_t uart_set_pin(uart_port_t uart_num, int tx_io_num, int rx_io_num, int r
esp_err_t uart_set_rts(uart_port_t uart_num, int level);
/**
* @brief UART set DTR level (before inverse)
* @brief UART set DTR level (before inverse)
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param level 1: DTR output low; 0: DTR output high
* @param level 1: DTR output low; 0: DTR output high
*
* @return
* - ESP_OK Success
@ -421,11 +430,11 @@ esp_err_t uart_set_rts(uart_port_t uart_num, int level);
esp_err_t uart_set_dtr(uart_port_t uart_num, int level);
/**
* @brief UART parameter configure
* @brief UART parameter configure
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param uart_config UART parameter settings
* @param uart_config UART parameter settings
*
* @return
* - ESP_OK Success
@ -434,11 +443,11 @@ esp_err_t uart_set_dtr(uart_port_t uart_num, int level);
esp_err_t uart_param_config(uart_port_t uart_num, const uart_config_t *uart_config);
/**
* @brief UART interrupt configure
* @brief UART interrupt configure
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param intr_conf UART interrupt settings
* @param intr_conf UART interrupt settings
*
* @return
* - ESP_OK Success
@ -447,25 +456,25 @@ esp_err_t uart_param_config(uart_port_t uart_num, const uart_config_t *uart_conf
esp_err_t uart_intr_config(uart_port_t uart_num, const uart_intr_config_t *intr_conf);
/**
* @brief Install UART driver.
* @brief Install UART driver.
*
* UART ISR handler will be attached to the same CPU core that this function is running on.
* Users should know that which CPU is running and then pick a INUM that is not used by system.
* We can find the information of INUM and interrupt level in soc.h.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param rx_buffer_size UART RX ring buffer size
* @param rx_buffer_size UART RX ring buffer size
*
* @param tx_buffer_size UART TX ring buffer size.
* @param tx_buffer_size UART TX ring buffer size.
*
* If set to zero, driver will not use TX buffer, TX function will block task until all data have been sent out..
*
* @param queue_size UART event queue size/depth.
* @param queue_size UART event queue size/depth.
*
* @param uart_intr_num UART interrupt number,check the info in soc.h, and please refer to core-isa.h for more details
* @param uart_intr_num UART interrupt number,check the info in soc.h, and please refer to core-isa.h for more details
*
* @param uart_queue UART event queue handle, if set NULL, driver will not use an event queue.
* @param uart_queue UART event queue handle, if set NULL, driver will not use an event queue.
*
* @return
* - ESP_OK Success
@ -474,9 +483,9 @@ esp_err_t uart_intr_config(uart_port_t uart_num, const uart_intr_config_t *intr_
esp_err_t uart_driver_install(uart_port_t uart_num, int rx_buffer_size, int tx_buffer_size, int queue_size, int uart_intr_num, void* uart_queue);
/**
* @brief Uninstall UART driver.
* @brief Uninstall UART driver.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @return
* - ESP_OK Success
@ -485,11 +494,11 @@ esp_err_t uart_driver_install(uart_port_t uart_num, int rx_buffer_size, int tx_b
esp_err_t uart_driver_delete(uart_port_t uart_num);
/**
* @brief Wait UART TX FIFO empty
* @brief Wait UART TX FIFO empty
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param ticks_to_wait Timeout, count in RTOS ticks
* @param ticks_to_wait Timeout, count in RTOS ticks
*
* @return
* - ESP_OK Success
@ -499,26 +508,25 @@ esp_err_t uart_driver_delete(uart_port_t uart_num);
esp_err_t uart_wait_tx_done(uart_port_t uart_num, TickType_t ticks_to_wait);
/**
* @brief Send data to the UART port from a given buffer and length,
* @brief Send data to the UART port from a given buffer and length,
* This function will not wait for the space in TX FIFO, just fill the TX FIFO and return when the FIFO is full.
* @note
* This function should only be used when UART TX buffer is not enabled.
*
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param buffer data buffer address
*
* @param buffer data buffer address
*
* @param len data length to send
* @param len data length to send
*
* @return
* - (-1) Parameter error
* - OTHERS(>=0) The number of data that pushed to the TX FIFO
*/
int uart_tx_chars(uart_port_t uart_no, const char* buffer, uint32_t len);
int uart_tx_chars(uart_port_t uart_num, const char* buffer, uint32_t len);
/**
* @brief Send data to the UART port from a given buffer and length,
* @brief Send data to the UART port from a given buffer and length,
*
* If parameter tx_buffer_size is set to zero:
* This function will not return until all the data have been sent out, or at least pushed into TX FIFO.
@ -526,11 +534,11 @@ int uart_tx_chars(uart_port_t uart_no, const char* buffer, uint32_t len);
* Otherwise, if tx_buffer_size > 0, this function will return after copying all the data to tx ringbuffer,
* then, UART ISR will move data from ring buffer to TX FIFO gradually.
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param src data buffer address
* @param src data buffer address
*
* @param size data length to send
* @param size data length to send
*
* @return
* - (-1) Parameter error
@ -539,7 +547,7 @@ int uart_tx_chars(uart_port_t uart_no, const char* buffer, uint32_t len);
int uart_write_bytes(uart_port_t uart_num, const char* src, size_t size);
/**
* @brief Send data to the UART port from a given buffer and length,
* @brief Send data to the UART port from a given buffer and length,
*
* If parameter tx_buffer_size is set to zero:
* This function will not return until all the data and the break signal have been sent out.
@ -549,15 +557,13 @@ int uart_write_bytes(uart_port_t uart_num, const char* src, size_t size);
* then, UART ISR will move data from ring buffer to TX FIFO gradually.
* After all data send out, send a break signal.
*
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param src data buffer address
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param size data length to send
*
* @param src data buffer address
*
* @param size data length to send
*
* @param brk_len break signal length (unit: one bit's time@current_baudrate)
* @param brk_len break signal length (unit: time of one data bit at current_baudrate)
*
* @return
* - (-1) Parameter error
@ -567,16 +573,15 @@ int uart_write_bytes(uart_port_t uart_num, const char* src, size_t size);
int uart_write_bytes_with_break(uart_port_t uart_num, const char* src, size_t size, int brk_len);
/**
* @brief UART read bytes from UART buffer
* @brief UART read bytes from UART buffer
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @param buf pointer to the buffer.
* @param buf pointer to the buffer.
*
* @param length data length
*
* @param ticks_to_wait sTimeout, count in RTOS ticks
* @param length data length
*
* @param ticks_to_wait sTimeout, count in RTOS ticks
*
* @return
* - (-1) Error
@ -585,9 +590,9 @@ int uart_write_bytes_with_break(uart_port_t uart_num, const char* src, size_t si
int uart_read_bytes(uart_port_t uart_num, uint8_t* buf, uint32_t length, TickType_t ticks_to_wait);
/**
* @brief UART ring buffer flush
* @brief UART ring buffer flush
*
* @param uart_no UART_NUM_0, UART_NUM_1 or UART_NUM_2
* @param uart_num UART_NUM_0, UART_NUM_1 or UART_NUM_2
*
* @return
* - ESP_OK Success