Symbol: UAC2_DEF_VOLUME_PRESENT
drivers/usb/gadget/function/f_uac2.c
2213
opts->p_volume_present = UAC2_DEF_VOLUME_PRESENT;
drivers/usb/gadget/function/f_uac2.c
2219
opts->c_volume_present = UAC2_DEF_VOLUME_PRESENT;