6 Nov
2015
6 Nov
'15
12:53 p.m.
On November 6, 2015 11:22, Mark Brown wrote:
+static int da7218_mic_lvl_det_sw_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)+{
Why is this a user visible control?
I can envisage in a system you may want to choose which capture channels can trigger level detection (if any), and this may change depending on the use-case at the time, so having it as a control makes sense to me.
What is a "capture channel" here?
Input filters 1L/R and 2L/R, which are fed from either Mic1(ADC1) or DMic1L/R and Mic2(ADC2) or DMic2L/R.