Properties and handlers for stream I/O. More...

#include <stream.h>

Data Fields
stream_type_t	type
	Type of stream. More...

uint8_t	instance
	Instance of stream type, starts from 0. More...

io_stream_state_t	state
	Optional status flags such as connected status. More...

stream_is_connected_ptr	is_connected
	Handler for getting stream connected status. More...

get_stream_buffer_count_ptr	get_rx_buffer_free
	Handler for getting number of free characters in the input buffer. More...

stream_write_ptr	write
	Handler for writing string to current output stream only. More...

stream_write_ptr	write_all
	Handler for writing string to all active output streams. More...

stream_write_char_ptr	write_char
	Handler for writing a single character to current stream only. More...

enqueue_realtime_command2_ptr	enqueue_rt_command
	(Optional) handler for enqueueing a realtime command character. More...

stream_read_ptr	read
	Handler for reading a single character from the input stream. More...

flush_stream_buffer_ptr	reset_read_buffer
	Handler for flushing the input buffer. More...

cancel_read_buffer_ptr	cancel_read_buffer
	Handler for flushing the input buffer and inserting an ASCII_CAN character. More...

set_enqueue_rt_handler_ptr	set_enqueue_rt_handler
	Handler for setting the enqueue realtime command character handler. More...

suspend_read_ptr	suspend_read
	Optional handler for saving away and restoring the current input buffer. More...

stream_write_n_ptr	write_n
	Optional handler for writing n characters to current output stream only. Required for Modbus support. More...

disable_rx_stream_ptr	disable_rx
	Optional handler for disabling/enabling a stream. Recommended? More...

get_stream_buffer_count_ptr	get_rx_buffer_count
	Optional handler for getting number of characters in the input buffer. More...

get_stream_buffer_count_ptr	get_tx_buffer_count
	Optional handler for getting number of characters in the output buffer(s). Count shall include any unsent characters in any transmit FIFO and/or transmit register. Required for Modbus/RS-485 support. More...

flush_stream_buffer_ptr	reset_write_buffer
	Optional handler for flushing the output buffer. Any transmit FIFO shall be flushed as well. Required for Modbus/RS-485 support. More...

set_baud_rate_ptr	set_baud_rate
	Optional handler for setting the stream baud rate. Required for Modbus/RS-485 support, recommended for Bluetooth support. More...

set_format_ptr	set_format
	Optional handler for setting the stream format. More...

stream_set_direction_ptr	set_direction
	Optional handler for setting the transfer direction for half-duplex communication. More...

on_linestate_changed_ptr	on_linestate_changed
	Optional handler to be called when line state changes. Set by client. More...

vfs_file_t *	file
	File handle, non-null if streaming from a file. More...

Detailed Description

Properties and handlers for stream I/O.

Field Documentation

◆ cancel_read_buffer

cancel_read_buffer_ptr cancel_read_buffer

Handler for flushing the input buffer and inserting an ASCII_CAN character.

◆ disable_rx

disable_rx_stream_ptr disable_rx

Optional handler for disabling/enabling a stream. Recommended?

◆ enqueue_rt_command

enqueue_realtime_command2_ptr enqueue_rt_command

(Optional) handler for enqueueing a realtime command character.

◆ file

vfs_file_t* file

File handle, non-null if streaming from a file.

◆ get_rx_buffer_count

get_stream_buffer_count_ptr get_rx_buffer_count

Optional handler for getting number of characters in the input buffer.

◆ get_rx_buffer_free

get_stream_buffer_count_ptr get_rx_buffer_free

Handler for getting number of free characters in the input buffer.

◆ get_tx_buffer_count

get_stream_buffer_count_ptr get_tx_buffer_count

Optional handler for getting number of characters in the output buffer(s). Count shall include any unsent characters in any transmit FIFO and/or transmit register. Required for Modbus/RS-485 support.