#include <hdlc.h>

Public Attributes
int	crc_bytes

hdlc_underflow_handler_t	underflow_handler
	The callback routine called to indicate transmit underflow.

void *	user_data
	An opaque parameter passed to the callback routine.

int	inter_frame_flags
	The minimum flag octets to insert between frames.

int	progressive
	TRUE if frame creation works in progressive mode.

size_t	max_frame_len
	Maximum permitted frame length.

uint32_t	octets_in_progress
	The stuffed bit stream being created.

int	num_bits
	The number of bits currently in octets_in_progress.

int	idle_octet
	The currently rotated state of the flag octet.

int	flag_octets
	The number of flag octets to send for a timed burst of flags.

int	abort_octets
	The number of abort octets to send for a timed burst of aborts.

int	report_flag_underflow
	TRUE if the next underflow of timed flag octets should be reported.

uint8_t	buffer [HDLC_MAXFRAME_LEN+4]
	The current message being transmitted, with its CRC attached.

size_t	len
	The length of the message in the buffer.

size_t	pos
	The current send position within the buffer.

uint32_t	crc
	The running CRC, as data fills the frame buffer.

int	byte
	The current byte being broken into bits for transmission.

int	bits
	The number of bits remaining in byte.

int	tx_end
	TRUE if transmission should end on buffer underflow .

Detailed Description

HDLC transmit descriptor. This contains all the state information for an HDLC transmitter.

Member Data Documentation

int hdlc_tx_state_s::crc_bytes

2 for CRC-16, 4 for CRC-32

The documentation for this struct was generated from the following file: