From a2d6ead1660d5386a1cad9ee0800f3f91f7db8c2 Mon Sep 17 00:00:00 2001
From: kurte <kurte@rockisland.com>
Date: Fri, 10 Nov 2023 09:04:04 -0800
Subject: [PATCH] Fix hang on GIGABYTE keyboard

0 length items in the configuration descriptor.
---
 src/USBHost/USBHost.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/USBHost/USBHost.cpp b/src/USBHost/USBHost.cpp
index c1780f8..a300af0 100644
--- a/src/USBHost/USBHost.cpp
+++ b/src/USBHost/USBHost.cpp
@@ -1017,6 +1017,10 @@ void USBHost::parseConfDescr(USBDeviceConnected * dev, uint8_t * conf_descr, uin
 
     while (index < len) {
         len_desc = conf_descr[index];
+        if (len_desc == 0) {
+            index++;
+            continue;
+        }
         id = conf_descr[index+1];
         switch (id) {
             case CONFIGURATION_DESCRIPTOR: