12 May
2009
12 May
'09
2:42 p.m.
On Tue, 12 May 2009, Lennart Poettering wrote:
With my original patch there are no superfluous opens.
If application uses more *open() calls from alsa-lib for one card (for example to open ctl handle and pcm handle), it's better to obtain card index at first, because each conversion requires one or more (card id) open/close sequence for control device to get card_info. Providing direct card index eliminates this conversion. It's just suggested optimization.
Jaroslav
----- Jaroslav Kysela perex@perex.cz Linux Kernel Sound Maintainer ALSA Project, Red Hat, Inc.