Hooks in configuration files

The hook extension in the ALSA library allows expansion of configuration nodes at run-time. The existence of a hook is determined by the presence of a @hooks compound node.

This example defines a hook which loads two configuration files at the beginning:

@hooks [
    {
        func load
        files [
            "/etc/asound.conf"
            "~/.asoundrc"
        ]
        errors false
    }
]

Function reference

  • The function load - snd_config_hook_load() - loads and parses the given configuration files.
  • The function load_for_all_cards - snd_config_hook_load_for_all_cards() - loads and parses the given configuration files for each installed sound card. The driver name (the type of the sound card) is passed in the private configuration node.