From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:54894) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UNKEN-0007M1-Qj for qemu-devel@nongnu.org; Wed, 03 Apr 2013 05:43:51 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UNKEK-0003P2-Fm for qemu-devel@nongnu.org; Wed, 03 Apr 2013 05:43:47 -0400 Received: from mx1.redhat.com ([209.132.183.28]:51790) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UNKEK-0003Oc-8n for qemu-devel@nongnu.org; Wed, 03 Apr 2013 05:43:44 -0400 Received: from int-mx12.intmail.prod.int.phx2.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.25]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r339hhQB025512 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 3 Apr 2013 05:43:43 -0400 From: Gerd Hoffmann Date: Wed, 3 Apr 2013 11:43:38 +0200 Message-Id: <1364982220-4755-9-git-send-email-kraxel@redhat.com> In-Reply-To: <1364982220-4755-1-git-send-email-kraxel@redhat.com> References: <1364982220-4755-1-git-send-email-kraxel@redhat.com> Subject: [Qemu-devel] [PATCH 08/10] usb-hub: report status changes only once List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Gerd Hoffmann Signed-off-by: Gerd Hoffmann --- hw/usb/dev-hub.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/hw/usb/dev-hub.c b/hw/usb/dev-hub.c index a5f092b..0b71abd 100644 --- a/hw/usb/dev-hub.c +++ b/hw/usb/dev-hub.c @@ -33,6 +33,7 @@ typedef struct USBHubPort { USBPort port; uint16_t wPortStatus; uint16_t wPortChange; + uint16_t wPortChange_reported; } USBHubPort; typedef struct USBHubState { @@ -467,8 +468,11 @@ static void usb_hub_handle_data(USBDevice *dev, USBPacket *p) status = 0; for(i = 0; i < NUM_PORTS; i++) { port = &s->ports[i]; - if (port->wPortChange) + if (port->wPortChange && + port->wPortChange_reported != port->wPortChange) { status |= (1 << (i + 1)); + } + port->wPortChange_reported = port->wPortChange; } if (status != 0) { for(i = 0; i < n; i++) { -- 1.7.9.7