Changeset 58642 in vbox

Timestamp:

Nov 10, 2015 2:11:52 PM (9 years ago)

Author:

vboxsync

Message:

USBProxyDevice: on VUSBSTATUS_DNR, retry up to 5 times (thanks Dennis Wassenberg)

File:

• trunk/src/VBox/Devices/USB/USBProxyDevice.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/USB/USBProxyDevice.cpp

@@ -47 +47 @@
 static void *GetStdDescSync(PUSBPROXYDEV pProxyDev, uint8_t iDescType, uint8_t iIdx, uint16_t LangId, uint16_t cbHint)
 {
+#define VUSBSTATUS_DNR_RETRIES 5
+    int cRetries = 0;
+
     LogFlow(("GetStdDescSync: pProxyDev=%s\n", pProxyDev->pUsbIns->pszName));
     for (;;)
@@ -105 +108 @@
         {
             Log(("GetStdDescSync: Urb.enmStatus=%d\n", Urb.enmStatus));
+
+            if (Urb.enmStatus == VUSBSTATUS_DNR)
+            {
+                cRetries++;
+                if (cRetries < VUSBSTATUS_DNR_RETRIES)
+                {
+                    Log(("GetStdDescSync: Retrying %u/%u\n", cRetries, max_retries));
+                    continue;
+                }
+            }
+
             break;
         }