net/tcp/tcp_send.c: Trival update to some comments.

2019-12-11 11:19:32 -06:00 · 2019-12-11 11:19:32 -06:00 · e5e52446ca
parent c8268cbfcf
commit e5e52446ca
1 changed files with 4 additions and 0 deletions
--- a/net/tcp/tcp_send.c
+++ b/net/tcp/tcp_send.c
@ -552,6 +552,10 @@ void tcp_reset(FAR struct net_driver_s *dev)
 * Description:
 *   Send the SYN, ACK, or SYNACK response.
 *
+ *   - SYN and SYNACK are sent only from the TCP state machine.
+ *   - ACK may be sent alone only if delayed ACKs are enabled and the ACK
+ *     delay timeout occurs.
+ *
 * Input Parameters:
 *   dev  - The device driver structure to use in the send operation
 *   conn - The TCP connection structure holding connection information