Symbol: CEC_MSG_REQUEST_AUDIO_LATENCY
drivers/media/cec/core/cec-adap.c
1105
[CEC_MSG_REQUEST_AUDIO_LATENCY] = 3 | DIRECTED,
include/uapi/linux/cec-funcs.h
1798
msg->msg[1] = CEC_MSG_REQUEST_AUDIO_LATENCY;