libFTDI - FTDI USB driver with bitbang mode

libFTDI is an open source library to talk to FTDI chips:

The library is linked with your program in userspace, no kernel driver required.
libFTDI works perfectly with Linux, Windows, MacOS X and BSD variants thanks to libusb.

If you have questions or want to talk to other developers, join the mailing list.


2020-07-07: Version 1.5 of libftdi released

2017-08-07: Version 1.4 of libftdi released 2016-05-20: Version 1.3 of libftdi released


The library itself is licensed under LGPL 2.1 (not any later),
the EEPROM programmer is licensed under GPL 2 (not any later)