How is the sound output in Lineage OS 17.1 firmware?

Question

linux

After flashing the SAMSUNG Galaxy A30 smartphone to the Project SAKURA firmware based on the Lineage OS 17.1 firmware, the sound output to the headphones disappeared, the problem is in the software part, the headphones are recognized when connected, the volume and call answer buttons work on the headphones, but the sound output comes through the built-in speaker, I did not find programs for translating sound to the earpiece (correcting the problem). Bluetooth headphones work fine The

question is, what is the name of the program that is responsible for selecting the sound channel in this firmware, so that I can replace it with the program from the original Lineage OS 17.1 firmware, because everything works fine in it

Or give me advice on how I can fix it This.