Selects the card id on platforms with multiple cards.
On some platforms, there are more than one sound cards. And the default one is
not with index: 0. So, we need a way to figure out the correct card id we
TEST=run the test on butterfly
Reviewed-by: Dylan Reid <email@example.com>
Commit-Queue: Owen Lin <firstname.lastname@example.org>
Tested-by: Owen Lin <email@example.com>
2 files changed