Hi,
> +##
> +# @AudiodevAlsaPerDirectionOptions:
> +#
> +# Options of the alsa backend that are used for both playback and recording.
> +#
> +# @dev: the name of the alsa device to use (default 'default')
> +#
> +# @try-poll: attempt to use poll mode, falling back to non polling access on
> +#
This patch adds structures into qapi to replace the existing
configuration structures used by audio backends currently. This qapi
will be the base of the -audiodev command line parameter (that replaces
the old environment variables based config).
This is not a 1:1 translation of the old options, I