int ftdi_write_data_async(struct ftdi_context *ftdi, unsigned char *buf, int size);
void ftdi_async_complete(struct ftdi_context *ftdi, int wait_for_more);
+ struct ftdi_transfer_control *ftdi_read_data_submit(struct ftdi_context *ftdi, unsigned char *buf, int size);
+ int ftdi_transfer_data_done(struct ftdi_transfer_control *tc);
+
int DEPRECATED(ftdi_enable_bitbang(struct ftdi_context *ftdi, unsigned char bitmask));
int ftdi_disable_bitbang(struct ftdi_context *ftdi);
int ftdi_set_bitmode(struct ftdi_context *ftdi, unsigned char bitmask, unsigned char mode);