USB audio not recognized

[KBert]

@mitu
Thank you for the suggestion. Unfortunately this was one of the things I tried yesterday that didn't seem to make a difference.

Thanks!
KB

[KBert]

I found another USB hub. This was was unpowered and would no support more than one device at a time on the Pi Zero. I then tried connecting only the keyboard to the Pi. I put in the :

tail -f /var/log/syslog

and unplugged the keyboard. It showed that the device was disconnected. I then plugged in my USB audio circuit and again nothing happened.

I still have not managed to get the wifi working.

Thanks!
KB

[KBert]

Well I am starting to think that this USB audio chip I have is simply not compatible with the Raspberry Pi Zero W. My reasoning:

1 - USB Circuit works fine with Windows Desktop and with Raspberry Pi 2.
2 - USB Circuit not detected through USB Hub on my original Pi Zero W.
3 - Loaded Retropie 4.5.1 on spare SD card and plugged it into spare Pi Zero W. Without modifying config and overlays to run DPI I was able to get wifi working without any trouble.
4 - Using SSH logged into the Pi and then plugged the USB audio circuit directly into USB on Pi Zero W.

USB audio still not detected.

I think I am going to have to look for a different chip.

I do find it curious that it works on a Pi 2 but not a Pi Zero.

Thanks everyone for the help. I will check back in when I have a different chip.

Thanks!
KB