Hello I just updated (fresh install actually) to latest matrix build from 9.2.7, sadly my usb dac isn’t recognized anymore. The problem, I’m pretty sure, is the lack of CONFIG_USB_F_UAC2 in the kernel config. So it should be easy to remedy.

[image] Bqeel M9C Max - USB OTG port not working Hardware Copy this script to: /storage/.config/autostart.sh (Or add the contents if you already have a autostart.sh) autostart.sh (123 Bytes) This script will set the USB controller type to “3”. (0:normal, 1:host, 2:devi…

UAC2 - usb audio 2.0

Development Feature Requests

Portisch 11 May 2021 15:32 5

maybe this? don’t know…
you need to dump your android dtb and compare the values.

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