diff --git a/hw/usb.c b/hw/usb.c
index 8584db0dec..8bd1222ccd 100644
--- a/hw/usb.c
+++ b/hw/usb.c
@@ -402,10 +402,15 @@ void usb_ep_init(USBDevice *dev)
 {
     int ep;
 
+    dev->ep_ctl.nr = 0;
     dev->ep_ctl.type = USB_ENDPOINT_XFER_CONTROL;
     dev->ep_ctl.ifnum = 0;
     dev->ep_ctl.dev = dev;
     for (ep = 0; ep < USB_MAX_ENDPOINTS; ep++) {
+        dev->ep_in[ep].nr = ep + 1;
+        dev->ep_out[ep].nr = ep + 1;
+        dev->ep_in[ep].pid = USB_TOKEN_IN;
+        dev->ep_out[ep].pid = USB_TOKEN_OUT;
         dev->ep_in[ep].type = USB_ENDPOINT_XFER_INVALID;
         dev->ep_out[ep].type = USB_ENDPOINT_XFER_INVALID;
         dev->ep_in[ep].ifnum = 0;
diff --git a/hw/usb.h b/hw/usb.h
index 4e878d350a..1e629af682 100644
--- a/hw/usb.h
+++ b/hw/usb.h
@@ -171,6 +171,8 @@ struct USBDescString {
 #define USB_MAX_INTERFACES 16
 
 struct USBEndpoint {
+    uint8_t nr;
+    uint8_t pid;
     uint8_t type;
     uint8_t ifnum;
     int max_packet_size;