From 36e39aaecbf862c450857dfb8f3a37e037af6188 Mon Sep 17 00:00:00 2001
From: Michael Hanselmann <public@hansmi.ch>
Date: Tue, 28 Dec 2021 16:40:42 +0100
Subject: [PATCH] waveshare2in13v2: Clarify documentation on controller

Additional research provided information confirming that Waveshare
2.13in v2 displays are in fact GDEH0213B72, not GDEH0213B73, or at least
equivalent.
---
 waveshare2in13v2/doc.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/waveshare2in13v2/doc.go b/waveshare2in13v2/doc.go
index f85f9e5..8fabdc8 100644
--- a/waveshare2in13v2/doc.go
+++ b/waveshare2in13v2/doc.go
@@ -10,6 +10,8 @@
 // Product page:
 // 2.13 inch version 2: https://www.waveshare.com/wiki/2.13inch_e-Paper_HAT
 //
-// The Waveshare 2.13in v2 display is compatible with the GoodDisplay
-// GDEH0213B73.
+// The Waveshare 2.13in v2 display is a GoodDisplay GDEH0213B72. Its IL3897
+// controller is compatible with the SSD1675A (sometimes also referred to as
+// SSD1675). The SSD1675A should not be mixed up with the SSD1675B. They have
+// different LUT formats (70 bytes for SSD1675A, 100 bytes for SSD1675B).
 package waveshare2in13v2