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
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