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Subject: cec-ctl: s/warn/info/ for 'start bit: low time too short'
Author:  Hans Verkuil <>
Date:    Tue Mar 6 11:07:36 2018 +0100

If something went wrong (e.g. bit error) then the state machine
goes to idle and waits for a valid start bit.

Some transmitters just keep transmitting the byte or whole message
disregarding the error. While they do that the cec analyzer keeps
spitting out "warn: start bit: low time too short". This makes it
hard to find the original 'warn:' that caused this. So replace
'warn' with 'info' for this message.

Signed-off-by: Hans Verkuil <>

 utils/cec-ctl/cec-pin.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/cec-ctl/cec-pin.cpp b/utils/cec-ctl/cec-pin.cpp
index b3416aa7cbe3..99f7fd1f33f7 100644
--- a/utils/cec-ctl/cec-pin.cpp
+++ b/utils/cec-ctl/cec-pin.cpp
@@ -163,7 +163,7 @@ static void cec_pin_rx_start_bit_was_low(__u64 ev_ts, __u64 
usecs, __u64 usecs_m
        if (usecs < CEC_TIM_START_BIT_LOW_MIN - CEC_TIM_MARGIN && show)
-               printf("%s: warn: start bit: low time too short (%.2f < %.2f 
+               printf("%s: info: start bit: low time too short (%.2f < %.2f 
                        ts2s(ts).c_str(), usecs / 1000.0,
                        CEC_TIM_START_BIT_LOW_MIN / 1000.0);
        if (usecs_min < CEC_TIM_START_BIT_LOW_MIN - CEC_TIM_MARGIN * 6) {

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