On Thursday 12 June 2008 12:29, Takashi Iwai wrote:

At Thu, 12 Jun 2008 11:58:19 +0200, Juergen Beisert wrote:

...

Hi,

when I register these mixer controls:

Line Playback Switch Line Playback Route Mono Playback Switch Mono Playback Route Phone Playback Switch Phone Playback Route Headphone Playback Switch Headphone Playback Route PCM Playback Switch PCM Playback Volume Line Bypass Capture Switch Line Bypass Capture Volume ADC Capture Route

Running "alsamixer" fails with:

ALSA lib simple_none.c:1218:(simple_add1) helem (MIXER,'Headphone Playback Switch',0,0,0) appears twice or more

It seems there are restrictions what kind of control name I can use for each control, but what restrictions? Are there better names for my output amplifiers? Each of it I can enable/disable (-> Switch) and select a source (-> Route) independently.

You can use "xxx Source" instead of "xxx Route", I guess, as a workaround.

I changed my controls to a single enumerated type instead of a switch and route. Now with shown words like "Off", "Source1", "Source2" its easier to understand, what this control does. Thanks for your hint.

Juergen