From 5ca2d96b54c618bc822a75f1a5721c06078f3c08 Mon Sep 17 00:00:00 2001
From: Comma Device <device@comma.ai>
Date: Tue, 18 Jul 2023 01:06:37 -0700
Subject: [PATCH] python lib: ensure full response is read in remaining

---
 python/spi.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/spi.py b/python/spi.py
index f14a04ef..c6f3fd5b 100644
--- a/python/spi.py
+++ b/python/spi.py
@@ -183,7 +183,7 @@ class PandaSpiHandle(BaseHandle):
         raise PandaSpiException(f"response length greater than max ({max_rx_len} {response_len})")
 
       # read rest
-      remaining = response_len - preread_len
+      remaining = (response_len + 1) - preread_len
       if remaining > 0:
         dat += bytes(spi.readbytes(remaining))