Re: Sound userspace drivers (fishing for insight)

[Takashi Iwai]

At Wed, 08 Mar 2006 13:56:06 -0500,
John Richard Moser wrote:
> 
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> Takashi Iwai wrote:
> > At Wed, 08 Mar 2006 11:17:26 -0500,
> > John Richard Moser wrote:
> >>>> into the kernel; with alsa it's written to a /proc interface, which
> >>> Using /proc? Where? I've not noticed it :-)
> >> I thought that was what /proc/asound/card0/ was for?  :)
> > 
> > /proc is not referred from alsa-lib, i.e. programs don't access them.
> > It's just for users who want to read some information.
> > 
> 
> This makes me wonder then how stuff is set up.  There's no device, is
> there a sound card syscall now?

You must have /dev/snd/* files, and the access is via normal
syscalls...  Check strace of your program.


Takashi
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