libffado2 software package provides FFADO API, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libffado2
libffado2 is installed in your system.
Make ensure the libffado2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libffado2 *
You will get with libffado2 package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | Libraries |
| Package | libffado2 |
| Version | 2.0.99+svn2171-2 |
| Description | FFADO API |
| Sub Section | libs |