From: Hans Verkuil hans.verkuil@cisco.com
Clarify that calling cec_transmit_done can start a new transmit and that you should put the hardware in a state that allows for a new transmit before calling this function.
Signed-off-by: Hans Verkuil hans.verkuil@cisco.com --- Documentation/media/kapi/cec-core.rst | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/Documentation/media/kapi/cec-core.rst b/Documentation/media/kapi/cec-core.rst index 1d989c544370..bca1d9d1d223 100644 --- a/Documentation/media/kapi/cec-core.rst +++ b/Documentation/media/kapi/cec-core.rst @@ -268,6 +268,10 @@ to 1, if the hardware does support retry then either set these counters to 0 if the hardware provides no feedback of which errors occurred and how many times, or fill in the correct values as reported by the hardware.
+Be aware that calling these functions can immediately start a new transmit +if there is one pending in the queue. So make sure that the hardware is in +a state where new transmits can be started *before* calling these functions. + The cec_transmit_attempt_done() function is a helper for cases where the hardware never retries, so the transmit is always for just a single attempt. It will call cec_transmit_done() in turn, filling in 1 for the