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[Qemu-devel] [PATCH 2/2] usb-smartcard-reader: Properly NAK interrupt ep
From: |
Hans de Goede |
Subject: |
[Qemu-devel] [PATCH 2/2] usb-smartcard-reader: Properly NAK interrupt eps when we've no events |
Date: |
Sat, 17 Nov 2012 12:15:02 +0100 |
When we've no data to return from the interrupt endpoint, return NAK rather
then a 0 length packet.
CC: Alon Levy <address@hidden>
Signed-off-by: Hans de Goede <address@hidden>
---
hw/usb/dev-smartcard-reader.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c
index 190fcd6..de955b7 100644
--- a/hw/usb/dev-smartcard-reader.c
+++ b/hw/usb/dev-smartcard-reader.c
@@ -1002,6 +1002,8 @@ static void ccid_handle_data(USBDevice *dev, USBPacket *p)
"handle_data: int_in: notify_slot_change %X, "
"requested len %zd\n",
s->bmSlotICCState, p->iov.size);
+ } else {
+ p->status = USB_RET_NAK;
}
break;
default:
--
1.8.0