ftdi_stream.c File Reference

#include <stdlib.h>
#include <stdio.h>
#include <sys/time.h>
#include <libusb.h>
#include "ftdi.h"

Go to the source code of this file.

Classes

struct  FTDIStreamState

Functions

int ftdi_readstream (struct ftdi_context *ftdi, FTDIStreamCallback *callback, void *userdata, int packetsPerTransfer, int numTransfers)

Function Documentation

int ftdi_readstream ( struct ftdi_context ftdi,
FTDIStreamCallback callback,
void *  userdata,
int  packetsPerTransfer,
int  numTransfers 
)

Streaming reading of data from the device

Use asynchronous transfers in libusb-1.0 for high-performance streaming of data from a device interface back to the PC. This function continuously transfers data until either an error occurs or the callback returns a nonzero value. This function returns a libusb error code or the callback's return value.

For every contiguous block of received data, the callback will be invoked.

Parameters:
ftdi pointer to ftdi_context
callback to user supplied function for one block of data
userdata 
packetsPerTransfer number of packets per transfer
numTransfers Number of transfers per callback

Definition at line 148 of file ftdi_stream.c.

References FTDIStreamState::activity, BITMODE_RESET, BITMODE_SYNCFF, FTDIStreamState::callback, FTDIProgressInfo::current, FTDIProgressInfo::currentRate, FTDIProgressInfo::first, ftdi_get_error_string(), ftdi_set_bitmode(), ftdi_usb_purge_buffers(), ftdi_context::max_packet_size, ftdi_context::out_ep, FTDIProgressInfo::prev, FTDIStreamState::progress, FTDIStreamState::result, size_and_time::time, size_and_time::totalBytes, FTDIProgressInfo::totalRate, FTDIProgressInfo::totalTime, ftdi_context::type, TYPE_2232H, TYPE_232H, ftdi_context::usb_ctx, ftdi_context::usb_dev, ftdi_context::usb_read_timeout, and FTDIStreamState::userdata.


Generated on 9 Dec 2019 for libftdi1 by  doxygen 1.6.1