HFC_SPL_LOOP_ON  3514 drivers/isdn/hardware/mISDN/hfcmulti.c 		case HFC_SPL_LOOP_ON: /* set sample loop */
HFC_SPL_LOOP_ON   444 drivers/isdn/mISDN/dsp_tones.c 				(len) ? HFC_SPL_LOOP_ON : HFC_SPL_LOOP_OFF, len, sample,