Control advanced configuration settings for sound cards using the ALSA (Advanced Linux Sound Architecture) system. Driver settings are written to and loaded from configuration files. The card can be specified as a card number, id, or device. If no card is specified, the configuration for all cards is saved or loaded. The default configuration file is /etc/asound.state.
Attempt to initialize all sound cards to a default state.
Load the driver information from the configuration file.
Save the current driver information to the configuration file.
Debug mode: increased information output to the console.
Set an environment variable. Useful for init or to override ALSA_CONFIG_PATH.
Specify the use of file instead of /etc/asound.state as a configuration file.
Force the restoration of settings; used with restore. This is the default.
With store and restore, do not display errors and do not set error exit codes.
Display help message and quit.
Specify the configuration file for init. The default is /usr/share/alsa/init/00main.
Ignore mismatched control settings; used with restore.
Save restore and init errors to the specified file, appending new errors to the end of the file (unless -R is specified).
Remove the runstate file first, before running the restore ...