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ftdi_context

NAME

ftdi_context - Main context structure for all libftdi functions.

SYNOPSIS

#include <ftdi.h>

Data Fields

struct usb_dev_handle * usb_dev
libusb's usb_dev_handle
int usb_read_timeout
usb read timeout
int usb_write_timeout
usb write timeout
enum ftdi_chip_type type
FTDI chip type.
int baudrate
baudrate
unsigned char bitbang_enabled
bitbang mode state
unsigned char * readbuffer
pointer to read buffer for ftdi_read_data
unsigned int readbuffer_offset
read buffer offset
unsigned int readbuffer_remaining
number of remaining data in internal read buffer
unsigned int readbuffer_chunksize
read buffer chunk size
unsigned int writebuffer_chunksize
write buffer chunk size
int interface
FT2232C interface number: 0 or 1.
int index
FT2232C index number: 1 or 2.
int in_ep
FT2232C end points: 1 or 2.
int out_ep

unsigned char bitbang_mode
Bitbang mode. 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode.
int eeprom_size
EEPROM size. Default is 128 bytes for 232BM and 245BM chips.
char * error_str
String representation of last error.
char * async_usb_buffer
Buffer needed for async communication.
unsigned int async_usb_buffer_size
Number of URB-structures we can buffer.

Detailed Description

Main context structure for all libftdi functions.

Do not access directly if possible.

Field Documentation

struct usb_dev_handle* ftdi_context::usb_dev [read]

libusb's usb_dev_handle

Referenced by ftdi_disable_bitbang(), ftdi_enable_bitbang(), ftdi_erase_eeprom(), ftdi_get_latency_timer(), ftdi_init(), ftdi_poll_modem_status(), ftdi_read_chipid(), ftdi_read_data(), ftdi_read_eeprom(), ftdi_read_eeprom_getsize(), ftdi_read_pins(), ftdi_set_baudrate(), ftdi_set_bitmode(), ftdi_set_error_char(), ftdi_set_event_char(), ftdi_set_latency_timer(), ftdi_set_line_property2(), ftdi_set_usbdev(), ftdi_setdtr(), ftdi_setdtr_rts(), ftdi_setflowctrl(), ftdi_setrts(), ftdi_usb_close(), ftdi_usb_get_strings(), ftdi_usb_open_desc(), ftdi_usb_open_dev(), ftdi_usb_purge_rx_buffer(), ftdi_usb_purge_tx_buffer(), ftdi_usb_reset(), ftdi_write_data(), and ftdi_write_eeprom().

int ftdi_context::usb_read_timeout

usb read timeout

Referenced by ftdi_get_latency_timer(), ftdi_init(), ftdi_poll_modem_status(), ftdi_read_chipid(), ftdi_read_data(), ftdi_read_eeprom(), ftdi_read_eeprom_getsize(), and ftdi_read_pins().

int ftdi_context::usb_write_timeout

usb write timeout

Referenced by ftdi_async_complete(), ftdi_disable_bitbang(), ftdi_enable_bitbang(), ftdi_erase_eeprom(), ftdi_init(), ftdi_set_baudrate(), ftdi_set_bitmode(), ftdi_set_error_char(), ftdi_set_event_char(), ftdi_set_latency_timer(), ftdi_set_line_property2(), ftdi_setdtr(), ftdi_setdtr_rts(), ftdi_setflowctrl(), ftdi_setrts(), ftdi_usb_purge_rx_buffer(), ftdi_usb_purge_tx_buffer(), ftdi_usb_reset(), ftdi_write_data(), and ftdi_write_eeprom().

enum ftdi_chip_type ftdi_context::type

FTDI chip type.

Referenced by ftdi_init(), and ftdi_usb_open_dev().

int ftdi_context::baudrate

baudrate

Referenced by ftdi_init(), and ftdi_set_baudrate().

unsigned char ftdi_context::bitbang_enabled

bitbang mode state

Referenced by ftdi_disable_bitbang(), ftdi_enable_bitbang(), ftdi_init(), ftdi_set_baudrate(), and ftdi_set_bitmode().

unsigned char* ftdi_context::readbuffer

pointer to read buffer for ftdi_read_data

Referenced by ftdi_deinit(), ftdi_init(), ftdi_read_data(), and ftdi_read_data_set_chunksize().

unsigned int ftdi_context::readbuffer_offset

read buffer offset

Referenced by ftdi_init(), ftdi_read_data(), ftdi_read_data_set_chunksize(), ftdi_usb_purge_rx_buffer(), and ftdi_usb_reset().

unsigned int ftdi_context::readbuffer_remaining

number of remaining data in internal read buffer

Referenced by ftdi_init(), ftdi_read_data(), ftdi_read_data_set_chunksize(), ftdi_usb_purge_rx_buffer(), and ftdi_usb_reset().

unsigned int ftdi_context::readbuffer_chunksize

read buffer chunk size

Referenced by ftdi_read_data(), ftdi_read_data_get_chunksize(), and ftdi_read_data_set_chunksize().

unsigned int ftdi_context::writebuffer_chunksize

write buffer chunk size

Referenced by ftdi_init(), ftdi_write_data(), ftdi_write_data_async(), ftdi_write_data_get_chunksize(), and ftdi_write_data_set_chunksize().

int ftdi_context::interface

FT2232C interface number: 0 or 1.

Referenced by ftdi_init(), ftdi_set_interface(), ftdi_usb_close(), and ftdi_usb_open_dev().

int ftdi_context::index

FT2232C index number: 1 or 2.

Referenced by ftdi_disable_bitbang(), ftdi_enable_bitbang(), ftdi_get_latency_timer(), ftdi_init(), ftdi_poll_modem_status(), ftdi_read_pins(), ftdi_set_bitmode(), ftdi_set_error_char(), ftdi_set_event_char(), ftdi_set_interface(), ftdi_set_latency_timer(), ftdi_set_line_property2(), ftdi_setdtr(), ftdi_setdtr_rts(), ftdi_setflowctrl(), ftdi_setrts(), ftdi_usb_open_dev(), ftdi_usb_purge_rx_buffer(), ftdi_usb_purge_tx_buffer(), and ftdi_usb_reset().

int ftdi_context::in_ep

FT2232C end points: 1 or 2.

Referenced by ftdi_init(), ftdi_set_interface(), ftdi_write_data(), and ftdi_write_data_async().

int ftdi_context::out_ep

Referenced by ftdi_init(), ftdi_read_data(), and ftdi_set_interface().

unsigned char ftdi_context::bitbang_mode

Bitbang mode. 1: (default) Normal bitbang mode, 2: FT2232C SPI bitbang mode.

Referenced by ftdi_enable_bitbang(), ftdi_init(), and ftdi_set_bitmode().

int ftdi_context::eeprom_size

EEPROM size. Default is 128 bytes for 232BM and 245BM chips.

Referenced by ftdi_eeprom_setsize(), ftdi_init(), ftdi_read_eeprom(), and ftdi_write_eeprom().

char* ftdi_context::error_str

String representation of last error.

Referenced by ftdi_get_error_string(), and ftdi_init().

char* ftdi_context::async_usb_buffer

Buffer needed for async communication.

Referenced by ftdi_deinit(), and ftdi_init().

unsigned int ftdi_context::async_usb_buffer_size

Number of URB-structures we can buffer.

Referenced by ftdi_init().

Author

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