diff --git a/Usb.cpp b/Usb.cpp
index b4f986a7..f961bb2d 100644
--- a/Usb.cpp
+++ b/Usb.cpp
@@ -751,11 +751,13 @@ uint8_t USB::getConfDescr(uint8_t addr, uint8_t ep, uint16_t nbytes, uint8_t con
         return ( ctrlReq(addr, ep, bmREQ_GET_DESCR, USB_REQUEST_GET_DESCRIPTOR, conf, USB_DESCRIPTOR_CONFIGURATION, 0x0000, nbytes, nbytes, dataptr, NULL));
 }
 
+/* Requests Configuration Descriptor. Sends two Get Conf Descr requests. The first one gets the total length of all descriptors, then the second one requests this
+ total length. The length of the first request can be shorter ( 4 bytes ), however, there are devices which won't work unless this length is set to 9 */
 uint8_t USB::getConfDescr(uint8_t addr, uint8_t ep, uint8_t conf, USBReadParser *p) {
         const uint8_t bufSize = 64;
         uint8_t buf[bufSize];
 
-        uint8_t ret = getConfDescr(addr, ep, 8, conf, buf);
+        uint8_t ret = getConfDescr(addr, ep, 9, conf, buf);
 
         if (ret)
                 return ret;
diff --git a/hiduniversal.cpp b/hiduniversal.cpp
index 1fd87fd2..536b0193 100644
--- a/hiduniversal.cpp
+++ b/hiduniversal.cpp
@@ -147,6 +147,8 @@ uint8_t HIDUniversal::Init(uint8_t parent, uint8_t port, bool lowspeed) {
                 return rcode;
         }
 
+				delay( 2 ); //per USB 2.0 sect.9.2.6.3 
+
         USBTRACE2("Addr:", bAddress);
 
         p->lowspeed = false;