From 753eef299adda1274ac7915119f1b14d9d5928d8 Mon Sep 17 00:00:00 2001
From: Frank <FrankBoesing@users.noreply.github.com>
Date: Sat, 13 Nov 2021 13:04:35 +0100
Subject: [PATCH] cbuf: allow inheritance

changes "private" vars to "protected" so that descendants are allowed to access them.
---
 cores/esp32/cbuf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cores/esp32/cbuf.h b/cores/esp32/cbuf.h
index ca65affcce9..490352e3202 100644
--- a/cores/esp32/cbuf.h
+++ b/cores/esp32/cbuf.h
@@ -62,7 +62,7 @@ class cbuf
 
     cbuf *next;
 
-private:
+protected:
     inline char* wrap_if_bufend(char* ptr) const
     {
         return (ptr == _bufend) ? _buf : ptr;