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-rw-r--r--lib/pam.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/pam.h b/lib/pam.h
index 6213dab3..4caaee6e 100644
--- a/lib/pam.h
+++ b/lib/pam.h
@@ -514,6 +514,8 @@ pnm_backgroundtuple(struct pam *  const pamP,
 /*----------------------------------------------------------------------------
    These are meant for passing to pm_system() as Standard Input feeder
    and Standard Output accepter.
+
+   The 'feederParm' or 'accepterParm' is a pointer to a struct pamtuples.
 -----------------------------------------------------------------------------*/
 
 void