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-rw-r--r--src/lib/fdio/lib_fdio.dox5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/lib/fdio/lib_fdio.dox b/src/lib/fdio/lib_fdio.dox
index b868d28aab..c3ca3b9c88 100644
--- a/src/lib/fdio/lib_fdio.dox
+++ b/src/lib/fdio/lib_fdio.dox
@@ -1,4 +1,7 @@
/**
@dir lib/fdio
-@brief lib/fdio
+@brief lib/fdio Code to read/write on file descriptors.
+
+(This module also handles sockets, on platforms where a socket is not a kind
+of fd.)
**/