MISDN_CTRL_HFC_ECHOCAN_ON 3655 drivers/isdn/hardware/mISDN/hfcmulti.c case MISDN_CTRL_HFC_ECHOCAN_ON: MISDN_CTRL_HFC_ECHOCAN_ON 83 drivers/isdn/mISDN/dsp_hwec.c cq.op = MISDN_CTRL_HFC_ECHOCAN_ON;