UAC2_DEF_PCHMASK 1078 drivers/usb/gadget/function/f_uac2.c 	opts->p_chmask = UAC2_DEF_PCHMASK;
UAC2_DEF_PCHMASK   24 drivers/usb/gadget/legacy/audio.c static int p_chmask = UAC2_DEF_PCHMASK;