[pulseaudio-tickets] [Bug 89921] OSS module doesn't detect some devices

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89921

--- Comment #10 from Raymond <superquad.vortex2 at gmail.com> ---
Example 3
     Setting the device.hints(5) options

     hint.hdac.0.cad0.nid20.config="as=1 seq=0"
     hint.hdac.0.cad0.nid26.config="as=2 seq=0"
     hint.hdac.0.cad0.nid27.config="as=3 seq=0"
     hint.hdac.0.cad0.nid25.config="as=4 seq=0"
     hint.hdac.0.cad0.nid24.config="as=5 seq=0 device=Line-out"
     hint.hdac.0.cad0.nid21.config="as=6 seq=0"

     will give 4 independent devices: pcm0 (line-out and line-in), pcm1
     (headphones and mic), pcm2    (additional line-out via retasked rear mic
     jack), and    pcm3 (internal speaker).


this example is interesting 

how do user know whether the codec has one, two or three ADC ?

the hda controllers usually have only four SDO which are shared by analog
output and digital output, this means only four devices can be playing but you
may have four analog outputs and two digital outputs


do this mean it is hard code to use front mic ?

pcm5: <Realtek ALC892 (Front Analog)> (play/rec)

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