--- /dev/null
+From 0995eaeb06c4810cd133e710170a7b181caf04cd Mon Sep 17 00:00:00 2001
+From: Hans de Goede <hdegoede@redhat.com>
+Date: Mon, 3 Sep 2012 11:49:07 +0200
+Subject: [PATCH] usb-redir: Set ep max_packet_size if available
+
+This is needed for usb-redir to work properly with the xhci emulation.
+
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+---
+ hw/usb/redirect.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
+index 321f5be..b9a3633 100644
+--- a/hw/usb/redirect.c
++++ b/hw/usb/redirect.c
+@@ -814,6 +814,7 @@ static void usbredir_chardev_open(USBRedirDevice *dev)
+
+ usbredirparser_caps_set_cap(caps, usb_redir_cap_connect_device_version);
+ usbredirparser_caps_set_cap(caps, usb_redir_cap_filter);
++ usbredirparser_caps_set_cap(caps, usb_redir_cap_ep_info_max_packet_size);
+ usbredirparser_caps_set_cap(caps, usb_redir_cap_64bits_ids);
+ usbredirparser_init(dev->parser, VERSION, caps, USB_REDIR_CAPS_SIZE, 0);
+ usbredirparser_do_write(dev->parser);
+@@ -1202,6 +1203,10 @@ static void usbredir_ep_info(void *priv,
+ i & 0x0f);
+ usb_ep->type = dev->endpoint[i].type;
+ usb_ep->ifnum = dev->endpoint[i].interface;
++ if (usbredirparser_peer_has_cap(dev->parser,
++ usb_redir_cap_ep_info_max_packet_size)) {
++ usb_ep->max_packet_size = ep_info->max_packet_size[i];
++ }
+ }
+ }
+
+--
+1.7.12.1
+