TMR_ECHO          342 include/uapi/linux/soundcard.h #define SEQ_ECHO		TMR_ECHO	/* For synching programs with output */
TMR_ECHO         1242 include/uapi/linux/soundcard.h #define SEQ_ECHO_BACK(key)		_TIMER_EVENT(TMR_ECHO, key)
TMR_ECHO          226 sound/core/seq/oss/seq_oss_event.c 	case TMR_ECHO: