[Qemu-devel] [PATCH] Implement the function usb_hub_handle_reset

[hkran <hkran@linux.vnet.ibm.com>]

Implement the function usb_hub_handle_reset. without it the guest 
propablly fail to configure the usb device attached to the virtulized 
hub with a correct address.

Typically, attaching more than one usb devices when lauch qemu may lead 
to the problem.


Signed-off-by: hkran <hkran@linux.vnet.ibm.com>
---
  hw/usb-hub.c |   13 ++++++++++++-
  1 files changed, 12 insertions(+), 1 deletions(-)

diff --git a/hw/usb-hub.c b/hw/usb-hub.c
index 3eb0f1a..6731075 100644
--- a/hw/usb-hub.c
+++ b/hw/usb-hub.c
@@ -220,7 +220,18 @@ static void usb_hub_complete(USBPort *port, 
USBPacket *packet)

  static void usb_hub_handle_reset(USBDevice *dev)
  {
-    /* XXX: do it */
+    USBHubPort *port = NULL;
+    USBHubState *s = (USBHubState *)dev;
+    int i;
+
+    for(i = 0; i < NUM_PORTS; i++) {
+        port = &(s->ports[i]);
+        if(port->wPortStatus & PORT_STAT_CONNECTION) {
+            usb_reset(&port->port);
+            port->wPortStatus = PORT_STAT_CONNECTION | PORT_STAT_POWER;
+            port->wPortChange = PORT_STAT_C_CONNECTION;
+        }
+    }
  }

  static int usb_hub_handle_control(USBDevice *dev, USBPacket *p,
-- 
1.7.1