[alsa-devel] limitations on number of alsa controls for a card

Vinod Koul vinod.koul at linux.intel.com
Thu Nov 1 15:46:51 CET 2012

On Thu, 2012-11-01 at 14:25 +0000, Mark Brown wrote:
> On Wed, Oct 31, 2012 at 07:37:31PM +0530, Vinod Koul wrote:
> > Is there any limitation on maximum number of controls we can have.
> > I had some platform side controls to represent DSP and adding them made
> > some of codec controls to vanish. And looks like if I register these
> > platform controls not all codec controls are visible in userpsace.
> > Is there nay max limit I am hitting?
> Not that I'm aware of beyond sizeof() type stuff which you're probably
> still a way away from.  How are you listing the controls and are there
> any name collisons?
alsa_amixer -c"cardname" controls

if there isn't anything in kernel which limits this, would there be
something in alsa-lib to have this kind of behavior?


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