button_ctls 240 sound/usb/mixer_scarlett_gen2.c struct snd_kcontrol *button_ctls[SCARLETT2_BUTTON_MAX]; button_ctls 1426 sound/usb/mixer_scarlett_gen2.c &private->button_ctls[i]); button_ctls 1934 sound/usb/mixer_scarlett_gen2.c &private->button_ctls[i]->id);