[alsa-devel] how does hw:0, 1 eventually get mapped to /dev/snd/controlC0 and company? is this on the wiki somewhere?

[Takashi Iwai]

At Fri, 30 Mar 2007 10:00:37 -0700,
John Utz wrote:
> 
> 
> -----Original Message-----
> From: Takashi Iwai [mailto:tiwai at suse.de]
> Sent: Fri 3/30/2007 5:52 AM
> To: Lee Revell
> Cc: John Utz; alsa-devel at alsa-project.org
> Subject: Re: [alsa-devel] how does hw:0, 1 eventually get mapped to /dev/snd/
> controlC0 and company? is this on the wiki somewhere?
> 
> > The alsa-lib <-> kernel interface is intentionally undocumented.  The
> > only officially supported interface to ALSA is via alsa-lib.
> 
> * Well, not completely intentional.  But we _recommend_ alsa-lib as the
> * primary accessor, and at least I have no interest in writing another
> * accessor right now.  The documentaion itself is always good ;)
> 
> which documentation? i thought that i'd looked at it all and i didnt get a
> sense of what i needed, did i miss something?

Well, I should have written "the documentation would be good".  It's a
follow up to Lee's comment.

There is no official documentation for now indeed, but you can guess
the necessary syscalls easily from asound.h.


Takashi