Patchwork Implement the function usb_hub_handle_reset

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Submitter hkran
Date Nov. 22, 2011, 9:08 a.m.
Message ID <20111122040811.Horde.Gix9ypir309Oy2Z7pC5TyWA@imap.linux.ibm.com>
Download mbox | patch
Permalink /patch/127071/
State New
Headers show

Comments

hkran - Nov. 22, 2011, 9:08 a.m.
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(-)

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

Patch

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;
+        }
+    }
  }