On 12/12/06, YongLi <sdliyong@xxxxxxxxx> wrote:
> Hello All,
>
> I am porting an sound chip driver to my ARM dev board.
>
> I do not know what is the difference between the mixer simple control and control.
>
> for my device driver, amixer contents output 9 controls:
> numid=3,iface=MIXER,name='Headphone Balance'
> ; type=INTEGER,access=rw---,values=1,min=0,max=127,step=0
> : values=-1026030912
> numid=1,iface=MIXER,name='Headphone Volume'
> ; type=INTEGER,access=rw---,values=1,min=0,max=127,step=0
> : values=0
> numid=5,iface=MIXER,name='Mic Volume'
> ; type=INTEGER,access=rw---,values=1,min=0,max=127,step=0
> : values=-1026031332
> numid=7,iface=MIXER,name='LINE-IN Volume'
> ; type=INTEGER,access=rw---,values=1,min=0,max=127,step=0
> : values=-1026028952
> numid=6,iface=MIXER,name='Radio Volume'
> ; type=INTEGER,access=rw---,values=1,min=0,max=127,step=0
> : values=-1026031472
> numid=8,iface=MIXER,name='Record Switch'
> ; type=INTEGER,access=rw---,values=1,min=0,max=3,step=0
> : values=-1026028812
> numid=9,iface=MIXER,name='Sound Effect'
> ; type=INTEGER,access=rw---,values=1,min=0,max=3,step=0
> : values=-1026028672
> numid=4,iface=MIXER,name='Speaker Balance'
> ; type=INTEGER,access=rw---,values=1,min=0,max=127,step=0
> : values=-1026031192
> numid=2,iface=MIXER,name='Speaker Volume'
> ; type=INTEGER,access=rw---,values=1,min=0,max=127,step=0
> : values=-1026031052
>
> amixer scontrols output 8 controls:
> Simple mixer control 'Headphone',0
> Simple mixer control 'Headphone Balance',0
> Simple mixer control 'Mic',0
> Simple mixer control 'LINE-IN',0
> Simple mixer control 'Radio',0
> Simple mixer control 'Sound Effect',0
> Simple mixer control 'Speaker',0
> Simple mixer control 'Speaker Balance',0
>
> The Record Switch control is missing in the simple controls.
>
> However, in the device driver, all these controls are the same settings:
> {
> .ctl = &snd_tlv320aic23_ctl,
> .name = "Record Switch",
> .index = RecordSource,
> .reg = TLV320AIC23_ANALOGPATH,
> .def = 0,
> .shift = 6,
> .mask = TLV320AIC23_APATH_SIDETONE15dB,
> .min = 0,
> .max = 3,
> },
> {
> .ctl = &snd_tlv320aic23_ctl,
> .name = "Sound Effect",
> .index = SoundEffect,
> .reg = TLV320AIC23_ANALOGPATH,
> .def = 1,
> .shift = 4,
> .mask = TLV320AIC23_APATH_DACEN,
> .min = 0,
> .max = 3,
> },
>
> How to change this setting to simple control?
>
> Thank you
>
> Tyler Li
>
Can you please post your entire source code to a web site somewhere,
and then put a link to it here in an email.
It looks like several things are wrong, but having the source code
will help us help you better.
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys - and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/alsa-devel
