[AudioI] Octo not Detected

[jr52884 at aim.com]

 I wanted to share a solution I found. I don't know if it's correct, but it did work. All the details can be found here. I'm also using 4.19.75 kernel as well, so that may have something to do with it.
Jonathan

    On Monday, July 31, 2023, 6:48:54 AM EDT, jr52884--- via People <people at lists.audioinjector.net> wrote:  
 
 Matt, All,
I'm having trouble getting my Octo running. If I run:
ls -l /proc/asound
and it does not show the Octo device. Here is the dmesg output:
[    7.417526] cs42xx8 1-0048: 1-0048 supply VA not found, using dummy regulator
[    7.417612] cs42xx8 1-0048: Linked as a consumer to regulator.0
[    7.417630] cs42xx8 1-0048: 1-0048 supply VD not found, using dummy regulator
[    7.417723] cs42xx8 1-0048: 1-0048 supply VLS not found, using dummy regulator
[    7.417787] cs42xx8 1-0048: 1-0048 supply VLC not found, using dummy regulator
[    7.442098] cs42xx8 1-0048: failed to get device ID, ret = -121
[    7.442469] cs42xx8: probe of 1-0048 failed with error -121
[    8.171910] audioinjector-octo soc:sound: ASoC: CODEC DAI cs42448 not registered - will retry
[    8.171929] audioinjector-octo soc:sound: snd_soc_register_card failed (-517)

[    9.731818] audioinjector-octo soc:sound: ASoC: CODEC DAI cs42448 not registered - will retry
[    9.731840] audioinjector-octo soc:sound: snd_soc_register_card failed (-517)
alsamixer does not see anything.
Where should I start troubleshooting?

#dtparam=audio-on is commented out and I added dtoverlay=audioinjector-addons in my /boot/config.txt. Does this look like a hardware problem of some sort? When I received it, a stacking header was soldered in. 
The same image I'm using on the Pi previously had the Audio Injector Stereo configured and working. I simply replaced the existing dtoverlay with dtoverlay=audioinjector-addons.
This looks more like a hardware problem. What do you guys think?

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