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-rw-r--r--Documentation/networking/dccp.txt6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index ffb9ca937d6..d76905a5a08 100644
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -136,6 +136,12 @@ sync_ratelimit = 125 ms
sequence-invalid packets on the same socket (RFC 4340, 7.5.4). The unit
of this parameter is milliseconds; a value of 0 disables rate-limiting.
+IOCTLS
+======
+FIONREAD
+ Works as in udp(7): returns in the `int' argument pointer the size of
+ the next pending datagram in bytes, or 0 when no datagram is pending.
+
Notes
=====