Re: alsa problems

[Johannes Berg <johannes@sipsolutions.net>]

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On Tue, 2006-03-28 at 15:08 +0200, Takashi Iwai wrote:

> > 1)
> > #include <sound/core.h>
> > doesn't compile because it requires sound/driver.h *before* it.
> 
> Yes.  And what's the point?

Well, that's pretty dumb. If it requires sound/driver.h it could just as
well include it itself.

> I don't understand what's the problem.  You can create an empty PCM
> via snd_pcm_new(), then add each stream, playback or capture, can be
> assigned appropriately via snd_pcm_new_stream() later on.

Right.
snd_pcm_new()
snd_device_register(card, pcm)
snd_pcm_new_stream(...)   <--- this stream never shows up as a chardev!!

> It can.  Call snd_device_free().

Hah ok. I didn't realize pcms were really just device thingies since
they have so many extra functions.

johannes

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