UAC3_PD_STATE_D2  748 sound/usb/pcm.c 	ret = snd_usb_pcm_change_state(&as->substream[0], UAC3_PD_STATE_D2);
UAC3_PD_STATE_D2  752 sound/usb/pcm.c 	ret = snd_usb_pcm_change_state(&as->substream[1], UAC3_PD_STATE_D2);
UAC3_PD_STATE_D2   91 sound/usb/power.c 		case UAC3_PD_STATE_D2: