From f6f73938ebd66beafd8dae6cc9bb3961f465f9d1 Mon Sep 17 00:00:00 2001
From: Michel Jaouen <michel.jaouen@st.com>
Date: Wed, 8 Mar 2017 14:43:57 +0100
Subject: [PATCH] USBHOST : fix device disconnection from hub during hub port
 reset

---
 features/unsupported/USBHost/USBHostHub/USBHostHub.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/features/unsupported/USBHost/USBHostHub/USBHostHub.cpp b/features/unsupported/USBHost/USBHostHub/USBHostHub.cpp
index 75c57f3ea8..6ccaa90a97 100644
--- a/features/unsupported/USBHost/USBHostHub/USBHostHub.cpp
+++ b/features/unsupported/USBHost/USBHostHub/USBHostHub.cpp
@@ -227,6 +227,9 @@ void USBHostHub::portReset(uint8_t port) {
 #endif
     while(1) {
         status = getPortStatus(port);
+        /*  disconnection since reset request */
+        if (!(status & PORT_CONNECTION))
+            break;
         if (status & (PORT_ENABLE | PORT_RESET))
             break;
         if (status & PORT_OVER_CURRENT) {