Here's a respin from Daniel's audiodev introspection patches from
2021. I've rebased them to the current master branch and addressed
the review comments from v1.
The Audiodev QAPI type is not introspectable via query-qmp-schema as
nothing in QMP uses it. "-audiodev" is not introspectable via
query-command-line-options because it avoided legacy QemuOpts.
To fix it, introduce a tiny "query-audiodev" QMP command that uses
the "Audiodev" QAPI structure, so that it shows up in the schema.
Then mark the various backend types with conditionals so that only
the ones that were available at compile time show up in the schema.
Daniel P. Berrangé (2):
qapi, audio: add query-audiodev command
qapi, audio: Make introspection reflect build configuration more
closely