Symbol: UAC1_DEF_VOLUME_PRESENT
drivers/usb/gadget/function/f_uac1.c
1769
opts->p_volume_present = UAC1_DEF_VOLUME_PRESENT;
drivers/usb/gadget/function/f_uac1.c
1775
opts->c_volume_present = UAC1_DEF_VOLUME_PRESENT;