[alsa-devel] [PATCH 1/1] Changing the Multi Track Peak control from MIXER to PCM type

[Pavel Hofman]

Takashi Iwai wrote:
> At Tue,  6 Oct 2009 14:51:06 +0200,
> pavel.hofman at ivitera.com wrote:
>> From: Pavel Hofman <pavel.hofman at ivitera.com>
>>
>> * The "Multi Track Peak" control is now of PCM type, to avoid
>>   confusing users in other alsa mixers.
> 
> We still need to handle the older kernels, so it has to retry with
> IFACE_MIXER as fallback.
> 
> Could you fix and repost?

Sure, just would you please tell me which snd_ctl_elem method to use to
check for existence of the control? I have no experience with alsa-lib

Thanks a lot.

Pavel.

> 
> 
> Takashi
> 
>> Signed-off-by: Pavel Hofman <pavel.hofman at ivitera.com>
>>
>> diff --git a/envy24control/levelmeters.c b/envy24control/levelmeters.c
>> index 3bf1a94..9bdaace 100644
>> --- a/envy24control/levelmeters.c
>> +++ b/envy24control/levelmeters.c
>> @@ -262,7 +262,7 @@ void level_meters_reset_peaks(GtkButton *button, gpointer data)
>>  void level_meters_init(void)
>>  {
>>  	snd_ctl_elem_value_malloc(&peaks);
>> -	snd_ctl_elem_value_set_interface(peaks, SND_CTL_ELEM_IFACE_MIXER);
>> +	snd_ctl_elem_value_set_interface(peaks, SND_CTL_ELEM_IFACE_PCM);
>>  	snd_ctl_elem_value_set_name(peaks, "Multi Track Peak");
>>  }
>>  
>> -- 
>> 1.5.4.3
>>