Print some more details in case we get a unknown
control request, to ease trouble-shooting.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1485870727-21956-1-git-send-email-kraxel@redhat.com
---
 hw/usb/dev-uas.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hw/usb/dev-uas.c b/hw/usb/dev-uas.c
index 3a8ff18..da2fb70 100644
--- a/hw/usb/dev-uas.c
+++ b/hw/usb/dev-uas.c
@@ -653,7 +653,8 @@ static void usb_uas_handle_control(USBDevice *dev, USBPacket *p,
     if (ret >= 0) {
         return;
     }
-    error_report("%s: unhandled control request", __func__);
+    error_report("%s: unhandled control request (req 0x%x, val 0x%x, idx 0x%x",
+                 __func__, request, value, index);
     p->status = USB_RET_STALL;
 }
 
-- 
1.8.3.1