1 files changed, 3 insertions, 0 deletions
diff --git a/io.h b/io.h
index 70a925ba..bba95317 100644
--- a/io.h
+++ b/io.h
@@ -89,6 +89,9 @@ io_data_t *io_buffer_create();
 */
 void io_buffer_read( io_data_t *d );
 
+/**
+   Print debug information about the specified IO redirection chain to stderr.
+*/
 void io_print( io_data_t *io );
 
 #endif