Original name was ifp-line. A command line program to access Iriver IFP audio players from the mid 2000's.
This repo is merely a copy of ifp-line-0.3 which allows for building on modern (2020+) GNU compilers.
Licence is GPL2.
Note: you need libusb-dev for this.
For ARM64 such as Raspberry Pi's, you will need the following configure option when hand compiling:
./configure --build=aarch64-unknown-linux-gnu
The executable is called ifp.