From 43160c7bc476643e3bc0c3a3f045d2c248a25bd2 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Mon, 8 Jul 2019 19:30:48 +0200
Subject: [PATCH] doc/filters: document new readeia608 option

---
 doc/filters.texi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/filters.texi b/doc/filters.texi
index b0c49265e2..ccbffab6ae 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -14689,6 +14689,9 @@ Set the black color threshold. Default is @code{0.15}. Allowed range is @code{[0
 @item chp
 Enable checking the parity bit. In the event of a parity error, the filter will output
 @code{0x00} for that character. Default is false.
+
+@item lp
+Lowpass lines prior further proccessing. Default is disabled.
 @end table
 
 @subsection Examples