For a period of up to 3 years after your purchase, a full distribution of source code and notes for libftdi can be downloaded from the link, https://www.duxburysystems.com/downloads/lgpl/libftdi-0.20.tar.gz, or it can be requested on physical media by contacting Duxbury Systems. For physical media, a fee to cover our expenses will apply.
Copyright © 2003-2010 by Intra2net AG
The C library "libftdi" is distributed under the GNU Library General Public License version 2. A copy of the GNU Library General Public License (LGPL) is included in this distribution, [from] the file COPYING.LIB.